CN107195481A - 一种钴酸镍/多级孔碳电极材料的制备方法及其用途 - Google Patents
一种钴酸镍/多级孔碳电极材料的制备方法及其用途 Download PDFInfo
- Publication number
- CN107195481A CN107195481A CN201710272590.7A CN201710272590A CN107195481A CN 107195481 A CN107195481 A CN 107195481A CN 201710272590 A CN201710272590 A CN 201710272590A CN 107195481 A CN107195481 A CN 107195481A
- Authority
- CN
- China
- Prior art keywords
- porous carbon
- cobalt
- electrode material
- preparation
- edta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000007772 electrode material Substances 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 32
- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 30
- 239000010941 cobalt Substances 0.000 title claims abstract description 30
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000008367 deionised water Substances 0.000 claims abstract description 15
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 239000012298 atmosphere Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004202 carbamide Substances 0.000 claims abstract description 5
- 239000011261 inert gas Substances 0.000 claims abstract description 5
- 238000005554 pickling Methods 0.000 claims abstract description 5
- 238000003763 carbonization Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000000967 suction filtration Methods 0.000 claims abstract description 3
- JZBRFIUYUGTUGG-UHFFFAOYSA-J tetrapotassium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [K+].[K+].[K+].[K+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JZBRFIUYUGTUGG-UHFFFAOYSA-J 0.000 claims description 34
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000005255 carburizing Methods 0.000 claims description 2
- 230000005518 electrochemistry Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- -1 suction filtration Substances 0.000 claims 1
- 238000005119 centrifugation Methods 0.000 abstract description 6
- 230000001737 promoting effect Effects 0.000 abstract description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 5
- 239000011148 porous material Substances 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 238000013019 agitation Methods 0.000 description 8
- 239000003643 water by type Substances 0.000 description 8
- 235000013877 carbamide Nutrition 0.000 description 6
- 206010013786 Dry skin Diseases 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 150000003672 ureas Chemical class 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000006181 electrochemical material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
-
- 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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- 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
-
- 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
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Analytical Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明提供了一种钴酸镍/多级孔碳电极材料的制备方法及其用途,制备步骤如下:步骤1、制备EDTA‑3K基多孔碳材料:将EDTA‑3K在惰性气体保护下进行煅烧碳化,进行酸洗杂质,抽滤,水洗涤至中性,烘干得到EDTA‑3K基多孔碳材料;步骤2、金属离子的掺杂:将金属盐和脲溶于去离子水中,得到混合液A,剧烈搅拌后加入步骤1所得EDTA‑3K基多孔碳材料的分散液中,充分搅拌后,进行水浴反应和电脑微波辐射反应,离心,清洗并烘干;步骤3、制备Co、Ni掺杂EDTA‑3K多级孔碳材料:在空气中煅烧步骤2得到的产物,即可得到钴酸镍/多级孔碳电极材料。本发明的制备方法方便快捷,容易操作,适于推广使用。
Description
技术领域
本发明涉及一种钴酸镍/多级孔碳电极材料的制备方法及其用途,具体为一种钴酸镍/多级孔碳电极材料的制备方法及其用途,属于电化学材料的制备技术领域。
背景技术
电化学电容器因具有充放电速度快、功率密度高、循环寿命长、工作温度范围宽等优点,在储能领域得到广泛应用和关注。但是,超级电容器还有很大的提高空间,超级电容器的研究主要集中于提高体系的能量密度。首先对多孔碳材料的孔结构进行优化,通过调节微孔比例,提高多孔材料比表面积的利用率,从而提高了电极材料的比容量。尽管这样,电极材料的比电容仍然不够高,不足以满足实际应用的条件。
金属钴类氧化物和氢氧化物因为廉价、良好的电化学氧化还原活性和循环性,以及高比赝电性能而被广泛用作电极材料。而双金属氧化物相比于单金属氧化物在导电性和循环稳定性方面更具有优势,甚至可以达到“1+1>2”的效果。例如,常见的作为电极材料的两种金属氧化物NiO和Co3O4,前者用作电极材料通常具有很高的比电容量,最大的缺点是循环稳定性较差;后者虽然比电容量较前者低,但是循环稳定性和倍率性能较好。将两者进行复合后制备得到的钴酸镍氧化物同时具备这两者的优点,具有高比电容的同时,也具有良好的循环稳定性和倍率性能。
一种钴酸镍/多级孔碳电极材料结合了不同尺寸孔的结构特点,具有良好大分子通过性、发达的孔隙结构和大的比表面积等优势,克服了传统单级孔结构碳材料孔结构单一的缺陷,同时,碳骨架结构也能有效地避免金属氧化物的堆叠。
发明内容
本发明的目的是提供一种钴酸镍/多级孔碳电极材料的制备方法。首先,将前驱体在氮气保护下进行高温煅烧;其次,碳化物的洗涤,清洗至中性;再次,60℃干燥后可得到EDTA-3K基多孔碳材料。并通过多种表征手段,揭示复合材料的形貌以及孔道分布等参数。
本发明采用的技术方案是:
一种钴酸镍/多级孔碳电极材料的制备方法,步骤如下:
步骤1、制备EDTA-3K基多孔碳材料:将一定量的EDTA-3K装入镍坩埚后置于管式炉中,在惰性气体保护下进行煅烧碳化,进行酸洗杂质,抽滤,水洗涤至中性,烘干得到EDTA-3K基多孔碳材料;
步骤2、金属离子的掺杂:将金属盐和脲溶于去离子水中,得到混合液A,剧烈搅拌后加入步骤1所得EDTA-3K基多孔碳材料的分散液中,充分搅拌后,进行水浴反应和电脑微波辐射反应,离心,清洗并烘干;
步骤3、制备钴酸镍/多级孔碳电极材料:在空气中煅烧步骤2得到的产物,即可得到钴酸镍/多级孔碳电极材料。
步骤1中,所使用的惰性气体为氮气。
步骤1中,所述碳化温度为700~900℃,升温速率为3.0~7℃min-1,碳化维持时间为1.0h。
步骤1中,进行酸洗时,所使用的酸为5~10wt%稀盐酸。
步骤2中,混合液A中所述金属盐、脲和去离子水的用量比为1mmol:30mmol:35mL;所述的EDTA-3K基多孔碳材料的分散液中,EDTA-3K基多孔碳材料与去离子水的用量比为20mg:3mL;所述混合液A与所述EDTA-3K基多孔碳材料的分散液的体积比为7:6。
步骤2中,所使用的金属盐为CoCl2·6H2O或NiCl2·6H2O。
步骤2中,水浴反应时,水温为80~90℃,并维持6~8h。
步骤2中,电脑微波辐射反应为在600W、90℃下反应60min。
步骤3中,在空气中煅烧温度为250℃,升温速率为2~5℃min-1,煅烧时间维持4h。
所制备的钴酸镍/多级孔碳电极材料用于电化学填充材料。
有益效果:
(1)所述钴酸镍/多级孔碳电极材料不仅具有碳材料化学稳定高、导电性好等优点,还具有比表面积高,孔道结构丰富、孔径可调等特点。
(2)鉴于该材料的高比表面积,可在吸附分离、催化剂载体等领域广泛使用。
(3)所述钴酸镍/多级孔碳电极材料具有高比表面积、性能稳定、再生重复利用性好等性能。
(4)本发明的制备方法方便快捷,容易操作,适于推广使用。
附图说明
图1为实施例1中制备的一种钴酸镍/多级孔碳电极材料掺杂金属离子后的扫描电镜图。
图2为实施例1中制备的一种钴酸镍/多级孔碳电极材料掺杂金属离子后的循环伏安曲线。
具体实施方式
下面结合附图对本发明作进一步描述:
实施例1:
首先,称取一定量的EDTA-3K装入30mL镍坩埚后置于管式炉中,在氮气氛围保护下进行煅烧,从室温升至700℃并维持1.0h,控制升温速度为3.0℃min-1。待自然冷却以后,将黑色产物取出,置于过量的稀盐酸(5wt%)溶液中,磁力搅拌2h以去除杂质,随后使用大量去离子水清洗产物至pH=7.0左右,60℃干燥后可得到EDTA-3K基多孔碳材料。
称取0.2g EDTA-3K基多孔碳材料分散在30mL去离子水中,超声30min,同时将1.0mmol CoCl2·6H2O和30mmol脲溶于35mL去离子水中,剧烈搅拌20min后加入EDTA-3K基多孔碳分散液,室温条件下温和搅拌15min使两者充分接触。然后将混合液分别在90℃水浴搅拌下反应6h和电脑微波辐射反应60min(600W,90℃恒温),反应完成后通过离心的方法将产物洗出,并且多次用去离子水和乙醇将其洗净,将黑色产物烘干,然后在空气中煅烧,控制升温速率2℃min-1升至250℃并维持4h,得到Co掺杂EDTA-3K基多孔碳材料。
图1中材料的表面通过SEM图来表征,发现其表面存在较为粗糙、孔隙结构密集呈现出孔径不等的多级孔隙结构,表明掺杂金属离子有利于孔隙结构的形成。
图2中循环伏安法描述的是电流随电位变化情况图。阴极反应的电流称为阴极电流,对应还原峰;阳极反应的电流称为阳极电流,对应氧化峰。一般国内规定阴极电流用正值阳极用负值,国外很多文献反之。通常,氧化峰位于较正的电位而还原峰位于较负的电位,这是极化作用的结果。
实施例2
首先,称取一定量的EDTA-3K装入30mL镍坩埚后置于管式炉中,在氮气氛围保护下进行煅烧,从室温升至800℃并维持1.0h,控制升温速度为7.0℃min-1。待自然冷却以后,将黑色产物取出,置于过量的稀盐酸(15wt%)溶液中,磁力搅拌2h以去除杂质,随后使用大量去离子水清洗产物至pH=7.0左右,60℃干燥后可得到EDTA-3K基多孔碳材料。
称取0.2g EDTA-3K基多孔碳材料分散在30mL去离子水中,超声30min,同时将1.0mmol CoCl2·6H2O和30mmol脲溶于35mL去离子水中,剧烈搅拌20min后加入EDTA-3K基多孔碳分散液,室温条件下温和搅拌15min使两者充分接触。然后将混合液分别在90℃水浴搅拌下反应6h和电脑微波辐射反应60min(600W,90℃恒温),反应完成后通过离心的方法将产物洗出,并且多次用去离子水和乙醇将其洗净,将黑色产物烘干,然后在空气中煅烧,控制升温速率5℃min-1升至250℃并维持4h,得到Co掺杂EDTA-3K基多孔碳材料。
实施例3
首先,称取一定量的EDTA-3K装入30mL镍坩埚后置于管式炉中,在氮气氛围保护下进行煅烧,从室温升至800℃并维持1.0h,控制升温速度为7.0℃min-1。待自然冷却以后,将黑色产物取出,置于过量的稀盐酸(15wt%)溶液中,磁力搅拌2h以去除杂质,随后使用大量去离子水清洗产物至pH=7.0左右,60℃干燥后可得到EDTA-3K基多孔碳材料。
称取0.2g EDTA-3K基多孔碳材料分散在30mL去离子水中,超声30min,同时将1.0mmol NiCl2·6H2O和30mmol脲溶于35mL去离子水中,剧烈搅拌20min后加入EDTA-3K基多孔碳分散液,室温条件下温和搅拌15min使两者充分接触。然后将混合液分别在90℃水浴搅拌下反应6h和电脑微波辐射反应60min(600W,90℃恒温),反应完成后通过离心的方法将产物洗出,并且多次用去离子水和乙醇将其洗净,将黑色产物烘干,然后在空气中煅烧,控制升温速率2℃min-1升至250℃并维持4h,Ni掺杂EDTA-3K基多孔碳材料。
实施例4
首先,称取一定量的EDTA-3K装入30mL镍坩埚后置于管式炉中,在氮气氛围保护下进行煅烧,从室温升至700℃并维持1.0h,控制升温速度为3.0℃min-1。待自然冷却以后,将黑色产物取出,置于过量的稀盐酸(5wt%)溶液中,磁力搅拌2h以去除杂质,随后使用大量去离子水清洗产物至pH=7.0左右,60℃干燥后可得到EDTA-3K基多孔碳材料。
称取0.2g EDTA-3K基多孔碳材料分散在30mL去离子水中,超声30min,同时将1.0mmol CoCl2·6H2O和30mmol脲溶于35mL去离子水中,剧烈搅拌20min后加入EDTA-3K基多孔碳分散液,室温条件下温和搅拌15min使两者充分接触。然后将混合液分别在80℃水浴搅拌下反应8h和电脑微波辐射反应60min(600W,90℃恒温),反应完成后通过离心的方法将产物洗出,并且多次用去离子水和乙醇将其洗净,将黑色产物烘干,然后在空气中煅烧,控制升温速率2℃min-1升至250℃并维持4h,得到Co掺杂EDTA-3K基多孔碳材料。
Claims (10)
1.一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤如下:
步骤1、制备EDTA-3K基多孔碳材料:将EDTA-3K在惰性气体保护下进行煅烧碳化,进行酸洗杂质,抽滤,水洗涤至中性,烘干得到EDTA-3K基多孔碳材料;
步骤2、金属离子的掺杂:将金属盐和脲溶于去离子水中,得到混合液A,剧烈搅拌后加入步骤1所得EDTA-3K基多孔碳材料的分散液中,充分搅拌后,进行水浴反应和电脑微波辐射反应,离心,清洗并烘干;
步骤3、制备钴酸镍/多级孔碳电极材料:在空气中煅烧步骤2得到的产物,即可得到钴酸镍/多级孔碳电极材料。
2.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤1中,所使用的惰性气体为氮气。
3.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤1中,所述碳化温度为700~900℃,升温速率为3.0~7℃ min-1,碳化维持时间为1.0h。
4.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤1中,进行酸洗时,所使用的酸为5~10wt%稀盐酸。
5.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤2中,混合液A中所述金属盐、脲和去离子水的用量比为1mmol:30mmol:35mL;所述的EDTA-3K基多孔碳材料的分散液中,EDTA-3K基多孔碳材料与去离子水的用量比为20mg:3mL;所述混合液A与所述EDTA-3K基多孔碳材料的分散液的体积比为7:6。
6.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤2中,所使用的金属盐为CoCl2·6H2O或NiCl2·6H2O。
7.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤2中,水浴反应时,水温为80~90℃,并维持6~8h。
8.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤2中,电脑微波辐射反应为在600W、90℃下反应60min。
9.如权利要求1所述的一种钴酸镍/多级孔碳电极材料的制备方法,其特征在于,步骤3中,在空气中煅烧温度为250℃,升温速率为2~5℃ min-1,煅烧时间维持4h。
10.权利要求1~9任意一项所述的方法制备的钴酸镍/多级孔碳电极材料用于电化学填充材料的用途。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710272590.7A CN107195481A (zh) | 2017-04-24 | 2017-04-24 | 一种钴酸镍/多级孔碳电极材料的制备方法及其用途 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710272590.7A CN107195481A (zh) | 2017-04-24 | 2017-04-24 | 一种钴酸镍/多级孔碳电极材料的制备方法及其用途 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107195481A true CN107195481A (zh) | 2017-09-22 |
Family
ID=59872243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710272590.7A Pending CN107195481A (zh) | 2017-04-24 | 2017-04-24 | 一种钴酸镍/多级孔碳电极材料的制备方法及其用途 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107195481A (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108461758A (zh) * | 2018-04-24 | 2018-08-28 | 中南大学 | 一种全钒液流电池用负极电极及其制备方法及全钒液流电池 |
CN109003838A (zh) * | 2018-07-27 | 2018-12-14 | 重庆三峡学院 | 一种纳米微球电极及其制备方法 |
CN110415986A (zh) * | 2019-07-12 | 2019-11-05 | 江苏理工学院 | 一种Ni掺杂CoO/C复合材料及其制备方法 |
CN113321247A (zh) * | 2021-06-16 | 2021-08-31 | 哈尔滨工业大学 | 一种有序孔隙木质衍生碳负载钴酸镍吸波材料的制备方法 |
CN113621986A (zh) * | 2021-07-13 | 2021-11-09 | 齐齐哈尔大学 | 一种缺陷型钴酸镍/多孔碳的制备方法 |
CN114334475A (zh) * | 2021-10-01 | 2022-04-12 | 中国科学院宁波材料技术与工程研究所 | 一步法合成的高比表面多级孔碳电极材料及其制备方法和应用 |
-
2017
- 2017-04-24 CN CN201710272590.7A patent/CN107195481A/zh active Pending
Non-Patent Citations (5)
Title |
---|
WEI XIONG: "Composite of Macroporous Carbon with Honeycomb-Like Structure from Mollusc Shell and NiCo2O4 Nanowires for High-Performance Supercapacitor", 《ACS APPL. MATER. INTERFACES》 * |
YING LEI等: "Rapid Microwave-Assisted Green Synthesis of 3D Hierarchical", 《ACS APPL. MATER. INTERFACES》 * |
周凤羽: "基于生物质的纳米孔碳复合材料的制备及电容性能研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
戴江栋: "多孔碳基材料的可控制备及其高效分离抗生素行为和机理研究", 《中国优秀博士论文全文数据库 工程科技Ⅰ辑》 * |
朝鲁蒙: "多孔EDTA基碳材料的可控制备及其电化学中的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108461758A (zh) * | 2018-04-24 | 2018-08-28 | 中南大学 | 一种全钒液流电池用负极电极及其制备方法及全钒液流电池 |
CN109003838A (zh) * | 2018-07-27 | 2018-12-14 | 重庆三峡学院 | 一种纳米微球电极及其制备方法 |
CN110415986A (zh) * | 2019-07-12 | 2019-11-05 | 江苏理工学院 | 一种Ni掺杂CoO/C复合材料及其制备方法 |
CN110415986B (zh) * | 2019-07-12 | 2021-05-18 | 江苏理工学院 | 一种Ni掺杂CoO/C复合材料及其制备方法 |
CN113321247A (zh) * | 2021-06-16 | 2021-08-31 | 哈尔滨工业大学 | 一种有序孔隙木质衍生碳负载钴酸镍吸波材料的制备方法 |
CN113321247B (zh) * | 2021-06-16 | 2022-08-02 | 哈尔滨工业大学 | 一种有序孔隙木质衍生碳负载钴酸镍吸波材料的制备方法 |
CN113621986A (zh) * | 2021-07-13 | 2021-11-09 | 齐齐哈尔大学 | 一种缺陷型钴酸镍/多孔碳的制备方法 |
CN114334475A (zh) * | 2021-10-01 | 2022-04-12 | 中国科学院宁波材料技术与工程研究所 | 一步法合成的高比表面多级孔碳电极材料及其制备方法和应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107195481A (zh) | 一种钴酸镍/多级孔碳电极材料的制备方法及其用途 | |
CN105457666A (zh) | 一种氮磷共掺杂多孔碳催化剂及其制备方法 | |
CN106910638A (zh) | 一种基于Zr‑MOFs复合材料为模板的碳材料及其制备方法和应用 | |
CN107240505A (zh) | 超级电容器电极材料Zn掺杂NiCo2O4复合物及制备方法 | |
CN110304620A (zh) | 一种利用豆渣制成的氮掺杂多孔碳材料及其制备方法和应用 | |
CN104979568A (zh) | 一种燃料电池阴极催化剂及其制备方法 | |
CN109879266A (zh) | 一种多孔碳基复合材料的制备方法 | |
CN111710529B (zh) | 一种Co/Mn-MOF/氮掺杂碳基复合材料及其制备方法与应用 | |
CN112725819A (zh) | 一种钨钼基氮碳化物纳米材料及其制备方法与应用 | |
CN109767925A (zh) | 用于锂离子超级电容器的T-Nb2O5/蛋清碳复合材料及其制备方法 | |
CN110526299B (zh) | 一种核壳结构Fe2O3@PPy复合材料的制备方法及其在超级电容器中的应用 | |
CN104299793B (zh) | 一种氧化镍/多壁碳纳米管电极材料的制备方法 | |
CN114824331A (zh) | 层状双金属氧化物负极材料及其制备方法和应用 | |
CN110350187A (zh) | 一种层状三元钠离子电池正极材料制备方法 | |
CN111768976B (zh) | 一种聚吡咯/银/氧化石墨烯复合材料及其制备方法和应用 | |
CN112864478A (zh) | 一种氧化钒基水系锌离子电池、性能优化方法及正极材料 | |
CN108516551A (zh) | 一种用于双电层电容器的杂原子掺杂多孔碳电极材料的制备方法 | |
CN110629245B (zh) | 氮掺杂碳包覆铜镉硫化物催化剂光电还原co2方法 | |
CN105529194B (zh) | 一种MnO2@石墨烯胶囊@MnO2复合材料的制备方法 | |
CN114300276B (zh) | 一种Ni-Fe-S@NiCo2O4@NF复合材料及其制备方法与应用 | |
CN102874884A (zh) | 一种超级电容器电极材料氧化镍的制备方法 | |
CN114604906B (zh) | 一种双缺陷工艺构建硼氢化钠还原的钼掺杂的R-Mo-NiCo2O4及制备方法和应用 | |
CN111710532B (zh) | 一种三氧化二锑-碳纳米管复合材料及其制备和应用 | |
CN108565133A (zh) | 一种三元化合物电极材料的制备方法 | |
CN110828191B (zh) | 一种多孔层状结构氮化碳/石墨烯/二硫化镍超级电容器材料及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
|
RJ01 | Rejection of invention patent application after publication |