CN107195906A - A kind of porous carbon cloth, preparation method and applications - Google Patents
A kind of porous carbon cloth, preparation method and applications Download PDFInfo
- Publication number
- CN107195906A CN107195906A CN201710512704.0A CN201710512704A CN107195906A CN 107195906 A CN107195906 A CN 107195906A CN 201710512704 A CN201710512704 A CN 201710512704A CN 107195906 A CN107195906 A CN 107195906A
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- Prior art keywords
- carbon cloth
- porous carbon
- preparation
- cloth
- porous
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 163
- 239000004744 fabric Substances 0.000 title claims abstract description 163
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 26
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000975 dye Substances 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 9
- 239000010405 anode material Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000007781 pre-processing Methods 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 16
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 239000007772 electrode material Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical group [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 19
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 abstract description 7
- 229960000907 methylthioninium chloride Drugs 0.000 abstract description 7
- 239000011149 active material Substances 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000009831 deintercalation Methods 0.000 abstract description 2
- 238000009830 intercalation Methods 0.000 abstract description 2
- 230000002687 intercalation Effects 0.000 abstract description 2
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 abstract description 2
- 229940012189 methyl orange Drugs 0.000 abstract description 2
- 229940043267 rhodamine b Drugs 0.000 abstract description 2
- -1 rhodamine b Chemical compound 0.000 abstract description 2
- 238000000137 annealing Methods 0.000 abstract 1
- 229910002986 Li4Ti5O12 Inorganic materials 0.000 description 19
- 239000011734 sodium Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000004087 circulation Effects 0.000 description 5
- 238000002484 cyclic voltammetry Methods 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 229910011229 Li7Ti5O12 Inorganic materials 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- 238000002679 ablation Methods 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910012670 LiTi5O12 Inorganic materials 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000001045 blue dye Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 210000000170 cell membrane Anatomy 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000005686 dimethyl carbonates Chemical class 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007704 wet chemistry method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- 229910011965 Li4Ti5O12In Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910009866 Ti5O12 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010919 dye waste Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium;hydroxide;hydrate Chemical compound [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000003115 supporting electrolyte Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0234—Carbonaceous material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Power Engineering (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Hydrology & Water Resources (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inert Electrodes (AREA)
Abstract
The invention discloses a kind of porous carbon cloth.In addition, the invention also discloses the preparation method of described porous carbon cloth, carbon cloth impregnates at least one of acetone, ethanol, water solvent, through drying process after, obtain pre-processing carbon cloth；Obtained pretreatment carbon cloth is sintered at 600 DEG C 650 DEG C, described porous carbon cloth is made.The present invention has prepared the porous carbon fiber cloth of uniform pore diameter using a step annealing method, and method is simple and environmentally-friendly.Porous carbon cloth of the present invention, can effective a variety of waste water from dyestuff such as degradation of methylene blue, rhodamine b, methyl orange as Electrochemical Technologies for Degradating waste water from dyestuff anode material.It regard described porous carbon cloth as growth substrate, active material is contacted with carbon cloth, this is conducive to the intercalation/deintercalation of lithium ion in the material, and being used as lithium ion, sodium-ion battery negative pole has big advantage, and this novel multistage composite structure has very high practical value.
Description
Technical field
The present invention relates to the preparation field of carbon cloth, and in particular to a kind of carbon cloth and its preparation with porous performance
Method, and its application in fields such as sewage disposal, battery materials.
Background technology
Carbon cloth is the abbreviation of carbon cloth, is a kind of yarn fabric interlocked with carbon fiber, and carbon cloth has good wear
Selectivity, has been widely used in many fields, such as fuel cell membrane electrode, electrode material for super capacitor, lithium-sulfur cell thoroughly
Positive electrode, lithium air battery positive electrode material, lithium ion battery negative material etc..But, the electrochemistry of commercial carbon cloth is lived
Property is not high, and specific surface area is smaller, causes its energy storage capability relatively low, and these defects limit the further application of carbon cloth.
Dyeing produces a large amount of dyeing waste waters every year, and its discharge capacity accounts for the 35% of total discharged volume of industrial waste water, and dyestuff gives up
The characteristics of water not only has high chemical oxygen demand, high chroma, the also persistent organic pollutants containing a large amount of " three cause " toxicity；With
The continuous progress developed rapidly with method of dye industry, New-type adjuvant, dyestuff etc. is used in a large amount of of dye industry, enters one
Step has aggravated the difficulty of decoloring dye waste water processing, and serious pollution is caused to water environment.Dye wastewater treatment is mainly pair
It is decolourized.The processing method of waste water from dyestuff can be divided into physical-chemical process, chemical method, bioanalysis, advanced oxidation processes and electrification
Method etc..Wherein electrochemical oxidation process is just widely studied application in recent years due to its exclusive superiority.Electrochemical process processing
Have the following advantages：(1) using electronics as reaction reagent, non-secondary pollution is environment-friendly；(2) capacity usage ratio is high；(3) processing is set
Standby simple, flow is convenient；(4) without pressurization heating, security is good；(5) it is applied widely, available for degraded COD
(COD) 0.1mg/L-100mg/L organic wastewater；(6) electrochemical treatments have bactericidal action, make the microorganisms such as bacterium in waste water
Lose activity.
Flexible energy storage device is in wearable flexible electronic devices, such as electronic paper, flexible screen and wearable biography
The fields such as sensor cause very big concern.These inventions will be widely used and following life style exerted far reaching influence.
In various energy storing devices, due to possessing high-energy-density, long-life and high rate performance, secondary cell is considered as most to have
Desired candidate.For the application of flexible battery, outstanding flexible, good cyclical stability and high magnification is designed
The electrode suitable for lightweight construction of performance is extremely important.Recently, the carbon material such as CNT and graphene is because it is good
Electric conductivity and mechanical flexibility and the electrode material and carrier matrix that are widely used as active material, researcher have been made
Many effort.On the other hand, due to its excellent structural stability, high conductivity and commercial applicability, carbon cloth has proved to be
The good base material of flexible battery.Different from conventional batteries, flexible electrode is typically free of adhesive and conductive additive.Carbon cloth
Key factor suitable for flexible battery is that its chemical property is stable under deformation condition.It is soft in order to develop high-performance
Property battery, in the urgent need to there is good contact between active material and flexible base material.Therefore, a kind of preparation of porous carbon cloth
Method, is to have very much actual application value.
The processing method of some carbon cloths is also reported in the prior art, for example, in the A of Publication No. CN 104179001
State's patent document discloses a kind of preparation method for the carbon cloth that surface is modified by wet chemistry, and the carbon cloth after cutting is put in into third
Take out and dry naturally after being impregnated with ketone, obtain sample A；Sample A and concentrated nitric acid are put into hydrothermal reaction kettle, it is then that hydro-thermal is anti-
Kettle is answered to be put into homogeneous reactor in 80-140 DEG C of insulation reaction 1-4 hours, reaction takes out carbon cloth after terminating, and uses deionized water
Cleaned, last vacuum drying, that is, obtain surface and pass through the carbon cloth that wet chemistry is modified.
For another example, the A of Publication No. CN 103334295 Chinese patent and the A of Publication No. CN 104018340 China
Patent document discloses similar carbon cloth processing method, and carbon cloth is placed in into reflow treatment in salpeter solution, and modification is made
Carbon cloth.
Existing these methods need the reflow treatment under the conditions of high oxidative acid, and the performance of obtained material and pay no attention to
Think.
The content of the invention
An object of the present disclosure is that there is provided a kind of fiber carbon cloth with loose structure, it is intended to lift the property of carbon cloth
Energy.
Second purpose of the invention is that there is provided the porous carbon that a kind of carbon fiber simple to operate, carbon cloth has abundant space
The preparation method of cloth.
It is a third object of the invention to provide the application process of described porous carbon cloth.
A kind of porous carbon cloth, the carbon fiber surface of carbon cloth has loose structure.
Preferably, described porous carbon cloth specific surface area is 3.50-5.00m2/g。
The specific surface area of existing commercial carbon cloth is only 0.20-0.30m2/ g, the ratio surface of porous carbon cloth prepared by the present invention
Product maximum can reach the 2500% of commercial carbon cloth.
In the present invention, being woven into the carbon fiber of the carbon cloth has abundant space, helps to lift the application effect of the carbon cloth
Really.For example, compared to plain carbon cloth, the effect of porous carbon cloth carried metal compound of the invention is more excellent.
Present invention also offers a kind of preparation method of described porous carbon cloth, carbon cloth in acetone, ethanol, water at least
Impregnated in a kind of solvent, through drying process after, obtain pre-processing carbon cloth；By obtained pretreatment carbon cloth at 600 DEG C -650 DEG C
Lower sintering, is made described porous carbon cloth.
Compared to existing preparation method, the present invention need not carry out reflow treatment using the nitric acid of strong oxidizing property to carbon cloth,
And the carbon cloth that processing is obtained unexpectedly has abundant gap structure, with excellent performance.The present invention uses cheap original
Material, it is simple to operate, the porous carbon cloth of uniform pore diameter is obtained, the material being made has high-specific surface area, high conductivity, hole
Abundant the features such as, be conducive to improving the contact area of the specific capacity of material, increase electrode and electrolyte, and then help to lift material
The performance of material.
Preferably, carbon cloth impregnates in acetone, ethanol, water respectively under ultrasonic wave added.
Further preferably, carbon cloth impregnates in acetone, ethanol, water successively under ultrasonic wave added, through drying process after, obtains
To pretreatment carbon cloth；Obtained pretreatment carbon cloth is sintered at 600 DEG C -650 DEG C, described porous carbon cloth is made.
It is preferred that preparation method in, first carbon cloth is placed in acetone soln, under ultrasonic wave added impregnate；Acetone soak is completed
It is impregnated in ethanol solution, is impregnated equally under ultrasonic wave added again afterwards；After the completion of alcohol dipping, then it is placed in water, continues super
Sound auxiliary is lower to be impregnated；After the completion of water retting, processing is dried to carbon cloth, obtains pre-processing carbon cloth.In the present invention, by successively
Ultrasonic immersing pretreatment under acetone, ethanol and the water condition of progress, can a step in conjunction with the sintering at temperature of the present invention
The carbon cloth material being made up of the carbon fiber of porous surface is made (to that is to say, abundant sky is formed in the step of carbon fiber surface one of carbon cloth
Gap structure).
In the present invention, the time of ultrasonic assistant soakage is 30-100 minutes in acetone, ethanol, water.
It that is to say, carbon cloth is immersed in acetone soln, handled 30-100 minutes in ultrasonic wave added；Then by acetone treatment
Carbon cloth afterwards is placed in ethanol solution, is handled 30-100 minutes in ultrasonic wave added；Carbon cloth after Ethanol Treatment is placed in water,
Ultrasonic wave added is handled 30-100 minutes, then obtains described pretreatment carbon cloth through drying process again.
Preferably, ultrasonic assistant soakage process is carried out at room temperature.
Described room temperature is preferably 10~40 DEG C.
Research shows that sintering temperature is to the performance of material, and for example porous performance, which has, influences.Sintering temperature is too low then will not
Partial oxidation carbon fiber is so as to obtain porous carbon fiber cloth, and meeting over oxidation carbon cloth, causes when sintering temperature is too high
The aperture of hole and quantity further expand and joined together on carbon cloth, show as carbon cloth surface it is ablated go out naked eyes can
The hole seen, causes the waste of carbon cloth and the reduction of performance.In temperature preferred for this invention, contribute in carbon fiber
Cloth surface it is uniform ablation suitable, the cavity of reasonable quantity that goes out size, with optimize the performance of porous carbon fiber cloth with other
The application in field.
Preferably, being warming up to described sintering temperature under described heating rate, then protected at described temperature
Temperature sintering.
Heating rate and sintering time are respectively provided with certain influence to the performance of final obtained material, and programming rate is excessively slow
With the increase of the long diameter and quantity that can cause carbon cloth surface hole defect of sintering time so that rotten on carbon cloth surface
Lose macroscopic hole, cause the waste of carbon cloth and the reduction of performance.Programming rate is too fast or sintering time is too short
Can cause carbon cloth ablated surface go out the hole of uneven distribution even can not ablation go out and under a scanning electron microscope may be used
The hole seen, with being as good as without the carbon cloth of sintering processes.
Preferably, the heating rate of sintering process is less than or equal to 10 DEG C/min；More preferably 5~10 DEG C/
min。
At the preferred temperature, coordinate suitable sintering time, contribute to the property of the obtained material of further lifting
Energy.Preferably, sintering time is 4-6h.
Sintering process of the present invention, can be carried out under air atmosphere, can be without in protective atmosphere (such as nitrogen, argon
Gas etc.) under carry out.
Preferably, the carbon cloth of pretreatment is sintered in Muffle furnace, wherein, the carbon cloth of pretreatment is close to porcelain boat bottom and put
Put.Carbon cloth is close to the placement of porcelain boat bottom, it is possible to decrease contact of the carbon cloth with air, it is to avoid it is oxidized the speed of ablation
With degree, so as to avoid going out macroscopic hole in carbon cloth ablated surface, it is to avoid monoblock carbon cloth is completely oxidized to
Gaseous volatilization.
The carbon cloth raw material that the present invention is used can use existing commercial product；Preferably use Taiwan carbon energy WOS1002 type carbon
Cloth.
A kind of preparation method of preferred porous carbon cloth of the present invention, comprises the following steps：
Step 1) use Taiwan carbon energy WOS1002 type carbon cloths, ultrasonically treated 30-100 minutes in acetone first, Zhi Hou
Ultrasound is distinguished in second alcohol and water 30-100 minutes, dry, obtain the carbon cloth of pretreatment；
Step 2) in Muffle furnace 600 DEG C -650 DEG C be incubated 4-6 hour, by carbon cloth be close to porcelain boat bottom place, you can must
To porous carbon cloth.
Present invention also offers the application of described porous carbon cloth；By the carbon cloth with porous pattern obtained by the present invention
Existing conventional carbon cloth is substituted, for fields such as sewage disposal, electrode materials.
Porous carbon cloth produced by the present invention has the features such as high-specific surface area, high conductivity, hole enrich, compared to existing
General commercial carbon cloth, the effect of porous carbon cloth carried metal compound of the present invention is remarkably reinforced；And then can be beneficial to improve
The contact area of the specific capacity of material, increase electrode and electrolyte, so that the efficiency of lifting electrochemical degradation waste water from dyestuff is reached,
And improve lithium ion, the purpose of sodium-ion battery performance.
Preferably, described application, is used for Electrochemical Technologies for Degradating dyestuff using described porous carbon cloth as anode material
In waste water.
Using the porous carbon cloth of the invention being prepared from as Electrochemical Technologies for Degradating waste water from dyestuff anode material, can effectively it drop
A variety of waste water from dyestuff such as methylene blue, rhodamine b, methyl orange are solved, porous carbon cloth is repeated and utilized by cleaning, further drop
Low cost.
Material of the present invention can be additionally used in fuel cell membrane electrode, electrode material for super capacitor, and other new electricity
Pond material.
Preferably, in described application, described porous carbon cloth is used to as positive electrode to prepare lithium ion battery
Or the positive pole of sodium-ion battery；Described lithium ion battery is lithium-sulfur cell, lithium-air battery.Porous carbon cloth of the present invention
Possess larger specific surface area and porous characteristic, and good electric conductivity, be highly suitable as element sulphur carrier and apply
In lithium sulfur battery anode material.Catalyst carrier is also suitable for as lithium air battery positive electrode material.
Using the porous carbon cloth of the invention being prepared from as growth substrate, active material and carbon cloth contact area are very
Greatly, this is conducive to the intercalation/deintercalation of lithium ion in the material, significantly reduces the destroyed phenomenon of sample topography in use,
This cubical array yield is high, has big advantage, this novel multistage composite as lithium ion, sodium-ion battery negative pole
Structure has very high practical value.
Preferably, described application, is used as ultracapacitor self-supporting electrode material by described porous carbon cloth.This hair
Bright described porous carbon cloth, because it possesses larger specific surface area and porous characteristic, and good electric conductivity is very suitable
Share and make ultracapacitor self-supporting electrode material.
The present invention compared with prior art, has the following advantages that：
1) raw material, the chemical reagent that the present invention is used are cheap, are readily obtained, cost-effective.
2) present invention process is simple, environment-friendly, and without using strong acid treatments such as concentrated nitric acids, carbon cloth is clear by simple ultrasound
After washing, 4-6 hours are incubated at a temperature of 600 DEG C -650 DEG C directly in Muffle furnace, without inert gas shielding, to operation and environment
It is required that it is not harsh, provide easy-to-use condition for industrialized production.
3) the porous carbon cloth prepared using the present invention, can be directly used for Electrochemical Technologies for Degradating waste water from dyestuff, without unnecessary step
Suddenly.
4) lithium ion battery, the anode material of lithium-ion battery that the porous carbon cloth prepared using the present invention is prepared for substrate,
Preparation section is simple, excellent electrochemical performance, with good specific capacity, high rate performance and cyclical stability.
Brief description of the drawings
Fig. 1 is commercial carbon cloth (CC；The raw material of embodiment 1) SEM image.
Fig. 2 is porous carbon cloth (PCC) low power number SEM image prepared by embodiment 1.
Fig. 3 be embodiment 1 in porous carbon cloth high magnification numbe SEM image.
Fig. 4 is the schematic device of Electrochemical Technologies for Degradating methylene blue dye wastewater in embodiment 4.
Fig. 5 is the spectrophotometry result of Electrochemical Technologies for Degradating methylene blue dye wastewater in embodiment 4.
Fig. 6 be embodiment 5 in load Li4Ti5O12Porous carbon cloth (LTO/PCC) XRD spectrum (a) and porous carbon cloth
(PCC) XRD spectrum (b).
The high magnification numbe SEM image that Fig. 7 is LTO/PCC in embodiment 5 (scale is 5um).
The high magnification numbe SEM image that Fig. 8 is LTO/PCC in embodiment 5 (scale is 3um).
Fig. 9 be embodiment 5 in porous carbon cloth lithium electrical property charge and discharge process voltage and specific capacity curve.
Figure 10 be embodiment 5 in porous carbon cloth sodium electrical property charge and discharge process voltage and specific capacity curve.
Figure 11 is lithium electricity constant current charge-discharge stable circulation linearity curve under 5C electric currents in embodiment 5.
Figure 12 is sodium electricity constant current charge-discharge stable circulation linearity curve under 1C electric currents in embodiment 5.
Figure 13 is the electric high rate performance of lithium of the porous carbon cloth of embodiment 5；
Figure 14 is the electric high rate performance of sodium of the porous carbon cloth of embodiment 5.
Figure 15 is the electric cyclic voltammetry curve of lithium of the porous carbon cloth in embodiment 5；
Figure 16 is the electric cyclic voltammetry curve of sodium of the porous carbon cloth in embodiment 5.
Embodiment
The present invention is intended to further illustrate with reference to embodiments, is not intended to limit the present invention.
Embodiment 1
Step 1) Taiwan carbon energy WOS1002 type carbon cloths are used, carbon cloth is placed in acetone first, at room temperature ultrasonically treated 60
Minute, it is ultrasonic 60 minutes respectively at room temperature in second alcohol and water successively again afterwards, dry, obtain the carbon cloth of pretreatment；
Step 2) in Muffle furnace, in air atmosphere, carbon cloth is close to the reaction of porcelain boat bottom, then by 5 DEG C/min heatings
5 hours are incubated to 650 DEG C (sintering temperature), you can obtain porous carbon cloth.
The specific surface area of obtained porous carbon fiber cloth is 4.98m2/ g, the specific surface area of the carbon cloth of before processing is only
0.21m2/g.By the processing of embodiment 1, its specific surface area has reached the 2371% of before processing.
Fig. 1 is the SEM pictures of the commercial carbon cloth (WOS1002 types) in embodiment 1, and its surface is smooth, no pore space structure.
Fig. 2 is the SEM pictures of porous carbon cloth in embodiment 1, and by the processing of the present invention, size occur in commercial carbon cloth surfaces
With all well-proportioned pore space structure of distribution.
Fig. 3 is SEM pictures under the bigger multiple of porous carbon cloth in embodiment 1, can more clearly from see porous carbon cloth
Pattern..
Embodiment 2
Compare, differ only in embodiment 1, in step (2), the temperature of sintering is 600 DEG C.Handle obtained carbon cloth ratio
Surface area is 4.59m2/g。
Embodiment 3
Compare, differ only in embodiment 1, in step (2), the time of sintering is 4h.Handle obtained carbon cloth and compare table
Area is 4.43m2/g。
Comparative example 1
Compare, differ only in embodiment 1, in step (2), the temperature of sintering is 700 DEG C.Handle obtained carbon cloth ratio
Surface area is 1.47m2/g.Performance is significantly worse than embodiment 1.
Comparative example 2
Compare, differ only in embodiment 1, in step (2), in sintering process, the heating rate of sintering process is 20
℃/min.The specific surface area for handling obtained carbon cloth is 1.83m2/g.Performance is worse than embodiment 1.
Comparative example 3
Compare, differ only in embodiment 1, in step (2), in sintering process, be incubated under described sintering temperature
Time be 8h.The specific surface area for handling obtained carbon cloth is 3.37m2/g.Obtained specific surface area is and right close to embodiment 1
The consumption of time and the energy is significantly greater than embodiment 1.
Embodiment 4
The methylene blue solution dye wastewater that 500mL concentration is 100mg/L is prepared, addition concentration is 0.05mol/L
Sodium sulphate as supporting electrolyte, concentration for 0.1mol/L sulfuric acid and sodium hydrate regulator solution pH value to pH=3.
Connection electrode, negative electrode connection platinum plate electrode, porous carbon cloth prepared by anode connection embodiment 1.It is electrolysed using D.C. regulated power supply,
Being exemplified as in 2cm, electrolytic process between porous carbon cloth electrode and auxiliary electrode is kept for 100 revs/min using magnetic stirring apparatus
Speed stirring, load current is 100mA.
The absworption peak of some strength is correspond in its ultraviolet-visible absorption spectroscopy of different molecular structures at different wave length, because
This can carry out qualitative and quantitative analysis according to the position of absworption peak and intensity to measured matter.Start after electrolysis, every 30 points
Clock, which draws 10mL solution, to be used to detect.Fig. 5 is to test Electrochemical Technologies for Degradating methylene blue mould using ultraviolet-uisible spectrophotometer
Intend the visible spectrum variation diagram of waste water from dyestuff.The absworption peak of methylene blue is mainly at 664nm, it can be seen that feature
Peak is more and more weaker with the progress of degraded, is disappeared substantially after 2h, and now degraded is basically completed, and is worked well.
Embodiment 5
Carbon cloth prepared by embodiment 1 is immersed in containing 0.3mL ammoniacal liquor, 0.1g polyvinylpyrrolidones (PVP), 0.06g
In the solution of potassium chloride (KCl), 10mL deionized waters and 40mL ethanol.Then, carbon cloth is put into containing 3mL isopropyl titanates (IV)
(30) in 30mL ethanol solutions.Above-mentioned two step 3 time is repeated, the sample of preparation is washed with deionized and at 50 DEG C
Lower drying.One layer of hydrous titanium oxide is set to be attached on carbon cloth by first step reaction.By the sample immersion of preparation containing appropriate
In LiOH water and ethanol (1: 1v) mixed solution, the stainless steel autoclave of Teflon liner is then transferred the solution into
In, and kept for 15 hours at 180 DEG C.It will be covered with LTO (Li4Ti5O12) carbon cloth of presoma is heated to 550 DEG C, keeps 1 small
When, obtain loading the product of LTO nanometer sheets on porous carbon cloth.
LTO/PCC electrodes without binding agent are cut into 1 × 1em sizes, and existed with Li paper tinsels and Na paper tinsels as to electrode
Tested in half-cell.Button cell (2016 model) is assembled in the glove box (Mbraum, Germany) for being filled with high-purity argon gas
It is middle to carry out.Li half-cells test in, electrolyte in the mixture of 1M dimethyl carbonates (DMC) and ethylene carbonate (EC) with
1: 1 volume ratio adds 1M LiPF6Composition.Na half-cells test in, electrolyte by the NaClO4 containing 1M carbonic acid two
Ethyl ester (DEC) and diethyl carbonate (EC) (1: 1, the v/v) composition containing 1% fluoroethylene carbonate (FEC).Lithium ion battery
Charging and discharging performance test with sodium-ion battery is carried out on blue electrical measurement test system at room temperature, Li and Na half-cells difference
In 1-2.5V and 0.5-2.5V voltage range interior circulation.LTO is calculated with LTO/PCC weight divided by the area of porous carbon cloth
Load quality density.Cyclic voltammetry is carried out in Chi604e electrochemical workstation systems, and test rate is 0.1mV s-1。
As seen from Figure 6, LTO/PCC XRD spectrum is (a), and its feature peak match is good, loads very successful.
The SEM scan images that Fig. 7 is LTO/PCC in the present embodiment, have benefited from being uniformly distributed for the PCC that embodiment 1 is designed
Pore space structure, the significant increase of surface area of active material forming core and growth, rough surface ensure that active material and carbon fiber
Between good contact.
The high magnification numbe SEM scan images that Fig. 8 is LTO/PCC in the present embodiment, can be more clearly seen Li4Ti5O12
Equably it is supported on the pattern on porous carbon cloth.
Fig. 9 is constant current charge-discharge curve of the LTO/PCC electrodes in the test of lithium ion half-cell, the under 5C electric currents
One time discharge capacity is 254mAh/g, and charging capacity is 177mAh/g.The capacity in follow-up cycle is nearly identical.
Figure 10 is storage Na cycle potentials distribution of the LTO/PCC electrodes 1, under 100 and 200 cycling conditions, and it is initially put
Capacitance is 251mAh/g, and voltage platform is about 0.7V, and charging capacity is 170mAh/g, and voltage platform is about 1.0V.
Figure 11 shows the cycle performance of the LTO/PCC electrodes under the conditions of current density is 5C, it is seen that its cycle performance is good
It is good, it is the 93% of the specific capacity of the tenth circle in the specific capacity for still having 148mAh/g after 1000 times circulate.
Figure 12 is LTO/PCC electrodes cycle performance under conditions of current density 1C, and picture is shown except first 20 circulations
Under there is irreversible specific capacity to decline, follow-up circulation tends towards stability.
Figure 13 is the storage lithium high rate performance of LTO/PCC electrodes, it is seen that LTO/PCC electrodes are in 2C, 5C, 10C, 20C and 30C
Charge-discharge velocity under obtain 172mAh/g, 143mAh/g, 128mAh/g, 220mAh/g and 117mAh/g capacity, even in
Under 40C and 50C high current density, 115mAh/g and 112mAh/g discharge capacity can be also obtained.When speed returns to C, its
Capacity is returned to initial value.
Figure 14 is the storage sodium high rate performance of TO/PCC electrodes, and LTO/PCC electrodes are in 1C, 2C, 5C, 10C, 20C, 30C and
Discharge capacity under 40C charge-discharge velocity is respectively 155mAh/g, 240mAh/g, 122mAh/g, 105mAh/g, 76mAh/g,
57mAh/g and 48mAh/g.
Figure 15 be lithium ion half-cell test in, sweep speed be 0.1mV/s when under 1V to 2.5V voltages initial two
The cyclic voltammetry curve of circle, reduction peak during 1.4V is Lithium-ion embeding Li4Ti5O12In form Li7Ti5O12Phase.1.63V place
Oxidation peak show lithium ion from Li7Ti5O12Middle abjection.
Figure 16 is that sweep speed is initial under 0.5V to 2.5V voltages when being 0.1mV/s during sodium ion half-cell is tested
The cyclic voltammetry curve of two circles.Reduction peak correspondence sodium ion insertion Li at 0.7V4Ti5O12Mutually form Li7Ti5O12With
Na6LiTi5O12Phase.Oxidation peak at 1.0V corresponds to sodium ion from Na6LiTi5O12Deviate from phase.
The explanation of above example is only to help to understand application and the core concept of the present invention, it is noted that do not departed from
On the premise of this method Spirit Essence and principle, some improvement can also be carried out to this method, these improvement fall within the present invention
In scope of the claims.
Claims (10)
1. a kind of porous carbon cloth, it is characterised in that the carbon fiber surface of carbon cloth has loose structure.
2. porous carbon cloth as claimed in claim 1, it is characterised in that the specific surface area of described carbon fiber is 3.50-
5.00m2/g。
3. the preparation method of the porous carbon cloth described in a kind of claim 1 or 2, it is characterised in that carbon cloth is in acetone, ethanol, water
At least one of impregnate in solvent, through drying process after, obtain pre-processing carbon cloth；By obtained pretreatment carbon cloth 600
Sintered at DEG C -650 DEG C, described porous carbon cloth is made.
4. the preparation method of porous carbon cloth as claimed in claim 3, it is characterised in that the heating rate of sintering process be less than or
Equal to 10 DEG C/min.
5. the preparation method of porous carbon cloth as claimed in claim 3, it is characterised in that sintering time is 4-6h.
6. the preparation method of porous carbon cloth as claimed in claim 3, it is characterised in that the carbon cloth of pretreatment burns in Muffle furnace
Knot, wherein, the carbon cloth of pretreatment is close to porcelain boat bottom and set.
7. the preparation method of porous carbon cloth as claimed in claim 3, it is characterised in that carbon cloth is under ultrasonic wave added respectively third
Impregnated in ketone, ethanol, water；
Ultrasonic assistant soakage process is carried out at room temperature；The time of ultrasonic assistant soakage is 30-100 minutes.
8. the application of porous carbon cloth made from the preparation method described in a kind of any one of claim 3~7, it is characterised in that make
It is used for for anode material in Electrochemical Technologies for Degradating waste water from dyestuff.
9. the application of porous carbon cloth made from the preparation method described in a kind of any one of claim 3~7, it is characterised in that make
It is used to prepare lithium ion battery or sodium-ion battery for positive electrode；Described lithium ion battery is lithium-sulfur cell or lithium air electricity
Pond.
10. the application of porous carbon cloth made from the preparation method described in a kind of any one of claim 3~7, it is characterised in that use
Make ultracapacitor self-supporting electrode material.
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| CN112542327A (en) * | 2020-12-04 | 2021-03-23 | 辽宁大学 | Hierarchical porous carbon cloth material, preparation method thereof and application of hierarchical porous carbon cloth material as supercapacitor electrode |
| CN113161624A (en) * | 2021-05-07 | 2021-07-23 | 哈尔滨工业大学 | Preparation method of elastic lithium battery with woven structure |
| CN113972375A (en) * | 2021-10-21 | 2022-01-25 | 合肥工业大学 | Preparation method and application of porous carbon fiber/tungsten oxide self-supporting lithium-sulfur battery positive electrode material |
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