CN109136970B - A kind of Bipolar Membrane and preparation method thereof of area load graphite alkene - Google Patents
A kind of Bipolar Membrane and preparation method thereof of area load graphite alkene Download PDFInfo
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- CN109136970B CN109136970B CN201811066576.2A CN201811066576A CN109136970B CN 109136970 B CN109136970 B CN 109136970B CN 201811066576 A CN201811066576 A CN 201811066576A CN 109136970 B CN109136970 B CN 109136970B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
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- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of Bipolar Membrane and preparation method thereof of area load graphite alkene, structure includes cation-exchange membrane layer and anion exchange membrane facing, loads one layer of graphite alkene layer respectively on the outer surface of cation-exchange membrane layer and anion exchange membrane facing.The preparation method comprises the following steps: the absorption of graphite alkene weak solution, coating, electrophoresis method are fixed on Bipolar Membrane both side surface, dry and be made.Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides using graphite alkene, can prevent Na+, Cu in electrolyte2+、Cl‑、SO4 2‑、C6H6、CCl4Pass through, prevent electrolyte contamination Bipolar Membrane, but hydrone can be penetrated, it may advantageously facilitate Bipolar Membrane intermediate layer water decomposition, in addition Bipolar Membrane prepared by the present invention, Bipolar Membrane two sides are carried on using graphite alkene, the good electric conductivity of graphite alkene advantageously reduces Bipolar Membrane hydrolysis ionization voltage, saved energy consumption.
Description
Technical field
The present invention relates to a kind of Bipolar Membrane, especially a kind of Bipolar Membrane and preparation method thereof of area load graphite alkene.
Background technique
Bipolar Membrane is made of cation-exchange membrane layer, anion exchange membrane facing and intermediate layer, is made in DC electric field
Under, the water of intermediate layer is dissociated, and is generated hydrogen ion and hydroxide ion and is respectively enterd yin, yang pole room.Bipolar Membrane
The size of intermediate layer water decomposition efficiency is to measure one of the key factor of Bipolar Membrane performance advantage, therefore, is improved intermediate
Boundary layer water decomposition efficiency is with regard to particularly important.In Bipolar Membrane water decomposition device, Bipolar Membrane is usually by preference mechanically anchored yin, yang
Between pole room, it is easy to cause Bipolar Membrane unbalance stress and deform, lead to the short service life of Bipolar Membrane.In addition, bipolar
A large amount of hydrogen ion and hydroxide ion are generated in film water dissociation process, so that the pH of yin, yang pole room can constantly change, this will
Ask Bipolar Membrane that can work in the electrolyte of different pH ranges.And containing a large amount of salt ion in electrolyte, organic matter etc. has
Evil substance, easily pollutes Bipolar Membrane, and bipolar film properties is caused to decline.
Summary of the invention
Present invention is generally directed to Bipolar Membrane water decomposition low efficiency in the prior art, hydrolysis ionization voltage it is big, the work of Bipolar Membrane
The disadvantages of service life is short, is easy by electrolyte contamination, provides a kind of Bipolar Membrane and preparation method thereof of area load graphite alkene.
The technical solution that the present invention takes in order to solve the above problem are as follows:
A kind of Bipolar Membrane of area load graphite alkene, including cation-exchange membrane layer and anion exchange membrane facing, sun from
One layer of graphite alkene layer is loaded on the outer surface of proton exchange layer and anion exchange membrane facing respectively.
As a kind of preferred embodiment of the invention, graphite alkene of the present invention is by CaC2And PhBr6Conjugation connection
The full carbon macromolecule with two-dimensional surface network structure formed has triangle atom hole, the reticular fibre knot of monatomic thickness
Structure, effective aperture are
The preparation method of the Bipolar Membrane of area load graphite alkene of the present invention, by graphite alkene weak solution coating, electrophoresis method
It is fixed on Bipolar Membrane both side surface, dries and is made
Compared with prior art, the invention has the following advantages:
1, Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides using graphite alkene, can prevent the Na in electrolyte
+、Cu2+、Cl-、SO4 2-、C6H6、CCl4Pass through, prevents electrolyte contamination Bipolar Membrane, but hydrone can be penetrated, may advantageously facilitate
Bipolar Membrane intermediate layer water decomposition.
2, Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides, the good electric conductivity of graphite alkene using graphite alkene
Bipolar Membrane hydrolysis ionization voltage is advantageously reduced, energy consumption has been saved.
3, Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides using graphite alkene so that Bipolar Membrane not with electrolyte
It directly contacts, avoids salt ion in electrolyte, the harmful substances such as organic matter pollute Bipolar Membrane, lead to bipolar film properties
Decline.
4, Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides using solid graphite alkene layer, not only increases double
The chemical stability of pole film, and its Young's modulus, draw high the mechanical performances such as intensity and also improved.
5, Bipolar Membrane prepared by the present invention is carried on Bipolar Membrane two sides, the carbon material of stable chemical performance using graphite alkene
Graphite alkene can adapt to the electrolyte of different pH ranges, be conducive to extend the working life of Bipolar Membrane.
6, Bipolar Membrane prepared by the present invention be hydrolyzed from when, current density be 60-90mA cm-2Under, hydrolyze ionization voltage
Bipolar Membrane relative to unsupported graphite alkene layer reduces 0.2-1.2V, and water decomposition efficiency improves 5.3%-29.4%, uses
Service life improves 3-5 times.
Detailed description of the invention
The bipolar membrane structure and the water decomposition in inorganic salt solution and organic solvent mixed electrolytic solution that attached drawing 1 is amplification
Schematic diagram.
Bipolar Membrane is made of graphite alkene film 1, anion-exchange membrane 2, cation-exchange membrane 3 and intermediate layer 4, in direct current
Under electric field action, the water of Bipolar Membrane intermediate layer is dissociated, and generates H+And OH-Ion.Hydrone in electrolyte can be saturating
It crosses graphite alkene film and enters Bipolar Membrane intermediate layer, the water consumed, but Na is replenished in time+、Cu2+、Cl-、SO4 2-、C6H6、
CCl4Enter etc. graphite alkene film cannot be penetrated.
Specific embodiment
Embodiment 1
Weigh 6.0g PhBr6、4.0g CaC2The stainless steel ball different with diameter be added to fill 100 milliliters it is anhydrous
In the stainless cylinder of steel of ethyl alcohol, planetary ball mill is used to operate 15 hours with 450 revs/min of speed, mixture is washed, is filtered,
Black powder graphite alkene is obtained after drying, graphite alkene powder is made into weak solution, and Bipolar Membrane two is fixed on using the method for coating
Side surface, naturally dry obtain the Bipolar Membrane that overall thickness is 80.8nm.
For the effect for further demonstrating that Bipolar Membrane of the invention, the present invention is using electronic universal tester to its Young mould
Amount, tensile strength, the mechanical performance of maximum load and elongation at break are tested.Meanwhile using Bipolar Membrane of the present invention as yin,
The diaphragm of anode chamber, applying direct current electric field effect under be hydrolyzed from, hydrolysis ionization voltage, water decomposition efficiency to Bipolar Membrane,
And the service life of Bipolar Membrane is studied.
Experimental result shows, is carried on Bipolar Membrane two sides using solid graphite alkene layer, and Young's modulus draws high intensity etc.
Mechanical performance significantly improves and (is shown in Table 1).By load graphite alkene layer Bipolar Membrane be hydrolyzed from, current density be 60mA cm-2
Under, hydrolyzing ionization voltage relative to the Bipolar Membrane of unsupported graphite alkene layer reduces 0.4V, and water decomposition efficiency improves 13.4%, makes
3.2 times are improved with the service life.
1 Bipolar Membrane measuring mechanical property of table
Embodiment 2
Weigh 9.0g PhBr6、6.0g CaC2The stainless steel ball different with diameter be added to fill 150 milliliters it is anhydrous
In the stainless cylinder of steel of ethyl alcohol, planetary ball mill is used to operate 18 hours with 450 revs/min of speed, mixture is washed, is filtered,
Black powder graphite alkene is obtained after drying.Graphite alkene powder is made into weak solution, Bipolar Membrane two is fixed on using the method for electrophoresis
Side surface, naturally dry obtain the Bipolar Membrane that overall thickness is 92.3nm.Using electronic universal tester to its Young's modulus, drawing
The mechanical performances such as intensity are risen to be tested.Meanwhile using Bipolar Membrane of the present invention as the diaphragm of yin, yang pole room, in applying direct current
It is hydrolyzed under field action from being ground to the service life of the hydrolysis ionization voltage of Bipolar Membrane, water decomposition efficiency and Bipolar Membrane
Study carefully.
Experimental result shows, is carried on Bipolar Membrane two sides using solid graphite alkene layer, Young's modulus, tensile strength, most
Heavy load and the mechanical performance of elongation at break are tested, the results showed that various mechanical performances all have significant improvement
(being shown in Table 2).By load graphite alkene layer Bipolar Membrane be hydrolyzed from, current density be 80mA cm-2Under, hydrolyze ionization voltage phase
0.6V is reduced for the Bipolar Membrane of unsupported graphite alkene layer, water decomposition efficiency improves 17.2%, and service life improves 3.6
Times.
2 Bipolar Membrane measuring mechanical property of table
Embodiment 3
Weigh 13.5g PhBr6、9.0g CaC2The stainless steel ball different with diameter be added to fill 150 milliliters it is anhydrous
In the stainless cylinder of steel of ethyl alcohol, planetary ball mill is used to operate 18 hours with 450 revs/min of speed, mixture is washed, is filtered,
Black powder graphite alkene is obtained after drying.Graphite alkene powder is made into weak solution, Bipolar Membrane two is fixed on using the method for electrophoresis
Side surface, naturally dry, obtained overall thickness are the Bipolar Membrane of 95.6nm.Using electronic universal tester to its Young's modulus,
The mechanical performances such as intensity are drawn high to be tested.Meanwhile using Bipolar Membrane of the present invention as the diaphragm of yin, yang pole room, in external dc
It is hydrolyzed under electric field action from being carried out to the service life of the hydrolysis ionization voltage of Bipolar Membrane, water decomposition efficiency and Bipolar Membrane
Research.
Experimental result shows, is carried on Bipolar Membrane two sides using solid graphite alkene layer, Young's modulus, tensile strength,
The mechanical performances such as maximum load and elongation at break significantly improve and (are shown in Table 3).The Bipolar Membrane for loading graphite alkene layer is hydrolyzed
From, current density be 90mA cm-2Under, hydrolyzing ionization voltage relative to the Bipolar Membrane of unsupported graphite alkene layer reduces 0.65V,
Water decomposition efficiency improves 18.6%, and service life improves 4.2 times.
3 Bipolar Membrane measuring mechanical property of table
Aforementioned present invention specific embodiment 1-3, the Bipolar Membrane and its preparation of a kind of area load graphite alkene implemented
Method, application is to be hydrolyzed under photoelectric action using the Bipolar Membrane as diaphragm from specific method is: negative with surface
Diaphragm of the Bipolar Membrane of graphite alkene as cathode chamber and anode chamber is carried, inorganic salt solution and organic solvent mixed electrolytic solution are prepared,
Metal and its oxide, as cathode, are mentioned as anode, semiconductor material and transition metal oxide using D.C. regulated power supply
For 0.5~2.0V of applied voltage, 350W xenon lamp is hydrolyzed under photoelectrocatalysis effect as light source from and testing its hydrolysis
The service life of ionization voltage, water decomposition efficiency and Bipolar Membrane under different pH electrolyte.Wherein, the metal and its oxygen
Compound is one of titanium-based oxide, Pt, Pd；The inorganic salt solution and organic solvent mixed electrolytic solution main component be
Na+、Cu2+、Cl-、SO4 2-、C6H6、CCl4Deng；The semiconductor material and transition metal oxide is C3N4, BiOCl,
Bi2O2CO3, BiOBr, MoS2,MoSe2,WS2,WSe2, ZnO, Cu2O, CuO, TiO2,WO3One or more of it is compound.
Claims (3)
1. a kind of Bipolar Membrane of area load graphite alkene, including cation-exchange membrane layer and anion exchange membrane facing, it is characterized in that
Load one layer of graphite alkene layer respectively on the outer surface of cation-exchange membrane layer and anion exchange membrane facing.
2. the Bipolar Membrane of area load graphite alkene according to claim 1, it is characterized in that the graphite alkene is by CaC2With
PhBr6The full carbon macromolecule with two-dimensional surface network structure that conjugation connection is formed, has triangle atom hole, monatomic thickness
Reticular fiber structure, effective aperture is
3. the preparation method of the Bipolar Membrane of area load graphite alkene described in claim 1, it is characterized in that graphite alkene weak solution is used
Coating, electrophoresis method are fixed on Bipolar Membrane both side surface, dry and are made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811066576.2A CN109136970B (en) | 2018-09-11 | 2018-09-11 | A kind of Bipolar Membrane and preparation method thereof of area load graphite alkene |
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| CN201811066576.2A CN109136970B (en) | 2018-09-11 | 2018-09-11 | A kind of Bipolar Membrane and preparation method thereof of area load graphite alkene |
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| CN109136970A CN109136970A (en) | 2019-01-04 |
| CN109136970B true CN109136970B (en) | 2019-11-15 |
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| WO2021124214A1 (en) * | 2019-12-20 | 2021-06-24 | 3M Innovative Properties Company | Light control film and a method of manufacturing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774570A (en) * | 2010-01-27 | 2010-07-14 | 中国科学院化学研究所 | Method for preparing graphite alkyne film |
| CN104593819A (en) * | 2015-01-06 | 2015-05-06 | 山东天维膜技术有限公司 | Bipolar membrane and preparation method thereof |
| CN108083272A (en) * | 2017-12-27 | 2018-05-29 | 复旦大学 | A kind of preparation method of graphite alkene carbon material |
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2018
- 2018-09-11 CN CN201811066576.2A patent/CN109136970B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774570A (en) * | 2010-01-27 | 2010-07-14 | 中国科学院化学研究所 | Method for preparing graphite alkyne film |
| CN104593819A (en) * | 2015-01-06 | 2015-05-06 | 山东天维膜技术有限公司 | Bipolar membrane and preparation method thereof |
| CN108083272A (en) * | 2017-12-27 | 2018-05-29 | 复旦大学 | A kind of preparation method of graphite alkene carbon material |
Non-Patent Citations (1)
| Title |
|---|
| 二维碳石墨炔的结构及其在能源领域的应用;黄长水等;《物理化学学报》;20160503;第32卷(第6期);第1314-1329页 * |
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