CN103367766B - The preparation method of graphene/ conductive polymer anode for microbial fuel cell - Google Patents
The preparation method of graphene/ conductive polymer anode for microbial fuel cell Download PDFInfo
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- CN103367766B CN103367766B CN201310328072.4A CN201310328072A CN103367766B CN 103367766 B CN103367766 B CN 103367766B CN 201310328072 A CN201310328072 A CN 201310328072A CN 103367766 B CN103367766 B CN 103367766B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 52
- 229920001940 conductive polymer Polymers 0.000 title claims abstract description 35
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 230000000813 microbial effect Effects 0.000 title claims abstract description 16
- 239000002322 conducting polymer Substances 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 18
- 239000008367 deionised water Substances 0.000 claims abstract description 16
- 239000000178 monomer Substances 0.000 claims abstract description 14
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000002484 cyclic voltammetry Methods 0.000 claims abstract description 6
- 230000008021 deposition Effects 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000003575 carbonaceous material Substances 0.000 claims description 8
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 4
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical class [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 150000003233 pyrroles Chemical class 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 claims description 2
- 229910001488 sodium perchlorate Inorganic materials 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- 229930192474 thiophene Natural products 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 9
- 230000004048 modification Effects 0.000 abstract description 9
- 238000012986 modification Methods 0.000 abstract description 9
- 230000002906 microbiologic effect Effects 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 229920000128 polypyrrole Polymers 0.000 description 7
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000008156 Ringer's lactate solution Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 graphite alkene Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
Classifications
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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
- Y02E60/50—Fuel cells
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Abstract
The invention discloses the preparation method of graphene/ conductive polymer anode for microbial fuel cell, comprise the steps: conducting polymer monomer to mix with graphene oxide aqueous suspension solution, stirred at ambient temperature is also ultrasonic; Adopt constant voltage galvanoplastic by conducting polymer monomer/graphene oxide electrically conductive composite electrochemical polymer deposition at anode surface, adopt cyclic voltammetry again, on electrode, original position electroreduction is conducting polymer/electrochemical reduction graphene oxide modified anode, dry by washed with de-ionized water and room temperature, obtained graphene/ conductive polymer anode for microbial fuel cell.Galvanic anode prepared by the present invention is compared to traditional chemical method of modifying, decrease the use of toxic reagent and loaded down with trivial details process, preparation cost is low, be easy to the industrialization realizing electrode fabrication, electrode after modification is used for battery, considerably enhance the electricity generation ability of microbiological fuel cell, promote the development and application of microbiological fuel cell.
Description
Technical field
The present invention relates to microbiological fuel cell field, specifically a kind of preparation method of graphene/ conductive polymer anode for microbial fuel cell.
Background technology
Microbiological fuel cell (microbialfuelcell, be called for short MFC), be that catalyst can be converted into the fuel cell system of electric energy by chemical energy in biological utilisation organic matter with microbe, with its clean environment firendly, the advantage such as renewable, become the study hotspot of emerging energy field and environmental area gradually.But the electrogenesis power ratio fuel cell of MFC is low, its main cause is limited to electrogenesis bacterium anode on the one hand and transmits the indifferent of electronics, on the other hand because the ohmic loss in MFC system is larger.And the material of anode and structure directly have influence on the oxidation of the attachment of microbe, electron transmission and substrate.Therefore, seeking the good high electrochemical activity anode of conductivity is the important directions will investigated at present.Carbon-based material, as carbon paper, carbon cloth, carbon felt, foamy carbon, owing to having good stability, high conductivity and high-ratio surface, be widely used as anode base material.For the raising of anode electrode performance, researchers have made extensive work, the type selecting of electrode is mainly divided into three major types, one is use combination electrode material, as CNT/PANI(carbon nano-tube/poly aniline) composite anode, anode characteristic area and charge transport ability are improved, improve the electro-chemical activity of MFC anode reaction significantly; Two is the electrode materials to modification, as used Mn
4+the anode graphite anode modified, utilizes ammonia process to modify carbon paper anode, changes electrode N/C than content etc. by modifying the modes such as dimethylaniline, ammonia treatment, heating; Three is nano-electrode materials, as synthesized MFC anode with carbon nano-tube, Au and the Pd particle etc. of decorated nanometer on graphite electrode.But the most processing cost of these methods is higher, processing step is comparatively complicated, substantially increases the cost of manufacture of electrode.Therefore, exploitation is a kind of efficient, and the anode of low cost, is significant to the making of microbiological fuel cell and the expansion of its commercial application.
Summary of the invention
The object of the invention is to for the low deficiency of existing microbiological fuel cell efficiency of fuel cell generation, a kind of preparation method of composite graphite alkene anode of microbial fuel cell is provided, the present invention at carbon-based electrode substrates polypyrrole/electrochemical reduction graphene oxide composite membrane, prepares a kind of novel electrode by electrochemical method.
The present invention realizes the technical scheme that object adopts and comprises:
A preparation method for graphene/ conductive polymer anode for microbial fuel cell, comprises the steps:
(1) be dissolved in deionized water by graphene oxide, obtained concentration is 1 ~ 15mgmL
-1graphene oxide aqueous suspension solution, then conducting polymer monomer to be joined in graphene oxide aqueous suspension solution obtained mixed liquor, the concentration of conducting polymer monomer in mixed liquor is 0.1 ~ 0.5molL
-1, at room temperature after magnetic agitation 5 ~ 30min, and ultrasonic 5 ~ 30min, obtained mixed electrolytic solution;
(2) electrochemical workstation is utilized, adopt three-electrode system, using pretreated carbon-based material as work electrode, using platinum electrode as to electrode, using saturated calomel electrode or saturated silver chloride electrode as reference electrode, three electrodes are placed in described mixed electrolytic solution, adopt constant voltage galvanoplastic, arranging current potential is 0.5 ~ 1V, plating amount is 5 ~ 120C, by conducting polymer monomer and graphene oxide electrochemical polymer deposition at anode surface, then uses washed with de-ionized water, room temperature is dried, and obtains conducting polymer/graphene oxide modified anode;
(3) electrochemical workstation is utilized, adopt three-electrode system, the conducting polymer prepared in (2)/graphene oxide modified anode is as work electrode, using platinum electrode as to electrode, using saturated calomel electrode or saturated silver chloride electrode as reference electrode, three electrodes are placed in 0.1 ~ 1molL
-1in electrolyte, adopt cyclic voltammetry, arranging reduction potential is-1.0 ~ 0V, sweep speed for 5mV/s, the reduction number of turns is 10 ~ 20 circles, conducting polymer/graphene oxide modified anode is reduced to conducting polymer/electrochemical reduction graphene oxide modified anode, by washed with de-ionized water, room temperature is dried, i.e. obtained graphene/ conductive polymer anode for microbial fuel cell.
In above-mentioned preparation, described in step (1), conducting polymer monomer comprises pyrroles, aniline or thiophene.
In above-mentioned preparation, preliminary treatment described in step (2) is at deionized water and 30%H by carbon-based material
2o
2at 90 DEG C, respectively 2h is heated in the aqueous solution.
In above-mentioned preparation, described in step (3), electrolyte comprises aqueous sodium persulfate solution or the sodium perchlorate aqueous solution.
In above-mentioned preparation, step (2) described carbon-based material comprises carbon felt or graphite felt.
The present invention by electrochemical method at carbon-based electrode substrates polypyrrole/electrochemical reduction graphene oxide composite membrane, prepare a kind of novel electrode, compared with traditional chemical routes, advantage of the present invention environmental protection more, quick, cost is low, be easy to realize industrialization, the electrode obtained has good bio-compatible stability and electro-chemical activity, the electricity generation performance of the microbiological fuel cell that can significantly improve.
Accompanying drawing explanation
Fig. 1 is the manufacturing process schematic diagram of galvanic anode of the present invention;
Fig. 2 is galvanic anode of the present invention position in the battery and the structural representation of whole battery;
Fig. 3 is the output power density curve chart of the embodiment of the present invention 1;
Fig. 4 is the output power density curve chart of the embodiment of the present invention 2;
Fig. 5 is the output power density curve chart of the embodiment of the present invention 3;
Fig. 6 is the output power density curve chart of the embodiment of the present invention 4.
Embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail, but embodiments of the present invention are not limited thereto, for the technological parameter do not indicated especially, can refer to routine techniques and carry out.
embodiment 1:
As shown in Figure 1, the manufacturing process schematic diagram of galvanic anode, in figure 1 be electrochemical workstation, 2 for be reference electrode to electrode, 3,4 for work electrode; Wherein, a refers to mixed solution (pyrrole monomer and graphene oxide aqueous suspension), and b refers to polypyrrole/graphene oxide composite membrane (constant voltage method electropolymerization), and c refers to polypyrrole/electrochemical reduction graphene oxide composite membrane (cyclic voltammetry reduction).Prepare anode according to the following steps:
(1) be that 200mg graphene oxide is dissolved in 40mL deionized water by quality, the concentration of system is 5mgmL
-1graphene oxide aqueous suspension solution.Pyrrole monomer 8mmol is joined obtained mixed liquor in graphene oxide aqueous suspension solution, the concentration of conducting polymer monomer in mixed liquor is 0.2molL again
-1, at room temperature after magnetic agitation 10min, and ultrasonic 5min, obtained mixed electrolytic solution;
(2) utilize electrochemical workstation, adopt three-electrode system, will with deionized water and 30%H
2o
2the aqueous solution respectively heats the pretreated graphite felt anode of 2h as work electrode at 90 DEG C, using platinum electrode as to electrode, using saturated calomel electrode as reference electrode, three electrodes are placed in mixed electrolytic solution, adopt constant voltage galvanoplastic, arranging current potential is 0.8V, plating amount is 30C, by pyrroles/graphene oxide electrically conductive composite electrochemical polymer deposition at anode surface, and the electrode washed with de-ionized water after modification, room temperature is dried, and obtains polypyrrole/graphene modified oxide anode;
(3) utilize electrochemical workstation, adopt three-electrode system, three electrodes, as work electrode, using platinum electrode as to electrode, using saturated calomel electrode as reference electrode, are placed in 0.1molL by the anode after the modification prepared in (2)
-1na
2sO
4in electrolyte, adopt cyclic voltammetry, arranging reduction potential is-1.0 ~ 0V, sweep speed for 5mV/s, the reduction number of turns is 20 circles, is polypyrrole/electrochemical reduction graphene oxide modified anode, will reduces rear electrode washed with de-ionized water by polypyrrole/graphene modified oxide anode reduction, room temperature is dried, and can obtain desired microorganisms fuel cell graphene/ conductive polymer anode.
In the present embodiment, microbiological fuel cell (see figure 2) is made up of battery filling opening 1, conduction titanium silk 2, amberplex 3, anode chamber's housing 4, modified anode 5, pretreating graphite felt negative electrode 6, cathode chamber housing 7, shell holder 8.
Wherein the preparation method of negative electrode pretreating graphite felt 2 is as follows: the water-bath at 90 DEG C of the hydrogen peroxide solution of graphite felt 10% is boiled 2 hours by (1), then with isopyknic deionized water at the same temperature water-bath boil 2 hours, then use oven for drying; (2) graphite felt is cut into (long 2cm × wide 3cm) size; (3) with titanium silk, graphite felt is put on.
Assembled battery: install on anode casing by the anode prepared, concrete grammar is as follows: the titanium silk on modified anode is passed from anode casing aperture by interior by (1) outward, and modified anode plane is parallel with anode casing board plane; (2) with AB glue, titanium silk and anode casing aperture are glued, place and make it solidify in about 5 minutes.(3) pretreated negative electrode is loaded cathode chamber by (1) (2) method, then amberplex is pressed on cathode chamber housing, then with anode casing, cathode shell, amberplex are fixed, screw nut of finally screwing on.After Fig. 2 assembling pressed by battery.(4) by 50mmolL
-1potassium ferricyanide solution join in cathode casing by negative electrode liquid filling hole, recycle silicon plug is stoppered.(5) sodium lactate solution is joined (in battery, sodium lactate solution concentration is 10mmol/L) in anode cassette by anode liquid filling hole, add the pure bacterium of 2ml Xi Washi again, finally add the phosphate buffer solution of pH=8.0, recycle silicon plug is stoppered, and (4) (5) operation is all carried out on aseptic working platform.In external circuit, connect the resistance of 2000 Ω, connect data acquisition unit and carry out image data, image data is set and is spaced apart collection in 1 minute once.Until when cell voltage reaches stable, start battery success.(speed is swept for 1mVs by linear scanning method
-1) measuring the power density curve (see figure 3) of battery, the maximum power density of battery reaches 2143mW/m
2(see figure 3).
embodiment 2
Present embodiment as different from Example 1 anode constant voltage plating polymerization modification in plating amount be 60C.Other conditions are all identical with specific embodiment 1.The power density that now battery is maximum reaches 3351mW/m
2(see figure 4).
embodiment 3
Present embodiment as different from Example 1 anode is the pretreating graphite felt electrode of unmodified.Other conditions are all identical with specific embodiment 1.In the present embodiment, anode of microbial fuel cell is identical with embodiment 1.The power density that now battery is maximum reaches and is only 180mW/m
2(see figure 5).
embodiment 4
The electroplate liquid of present embodiment anode modification is as different from Example 1 the graphene oxide aqueous suspension not adding pyrrole monomer.Present embodiment anode is prepared as follows: (1) is by 5mgml
-1graphene oxide aqueous suspension is at room temperature after magnetic agitation 10min, and ultrasonic 5min; (2) utilize electrochemical workstation, adopt three-electrode system, using pretreated carbon-based material anode as work electrode, using platinum electrode as to electrode, using saturated calomel electrode as reference electrode, three electrodes are placed in aaerosol solution, adopt and voltage galvanoplastic, arranging current potential is 0.8V, plating amount is 90C, by graphene oxide electrically conductive composite electrochemical polymer deposition at anode surface, obtains graphene oxide modified anode, electrode washed with de-ionized water after modification, room temperature is dried; (3) utilize electrochemical workstation, adopt three-electrode system, three electrodes, as work electrode, using platinum electrode as to electrode, using saturated calomel electrode as reference electrode, are placed in 0.1molL by the anode after the modification of preparation in (2)
-1na
2sO
4in electrolyte, adopt cyclic voltammetry, arranging reduction potential is-1.0 ~ 0V, sweep speed for 5mV/s, the reduction number of turns is 20 circles, graphene oxide modified anode is reduced to electrochemical reduction graphene oxide modified anode, will reduces rear electrode washed with de-ionized water, room temperature is dried, and can obtain desired microorganisms anode of fuel cell.Other conditions are all identical with specific embodiment 1.Now the maximum power density of battery is 854mW/m
2(see figure 6).
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. the preparation method of graphene/ conductive polymer anode for microbial fuel cell, is characterized in that comprising the steps:
(1) be dissolved in deionized water by graphene oxide, obtained concentration is 1 ~ 15mgmL
-1graphene oxide aqueous suspension solution, then conducting polymer monomer to be joined in graphene oxide aqueous suspension solution obtained mixed liquor, the concentration of conducting polymer monomer in mixed liquor is 0.1 ~ 0.5molL
-1, at room temperature after magnetic agitation 5 ~ 30min, and ultrasonic 5 ~ 30min, obtained mixed electrolytic solution;
(2) electrochemical workstation is utilized, adopt three-electrode system, using pretreated carbon-based material as work electrode, using platinum electrode as to electrode, using saturated calomel electrode or saturated silver chloride electrode as reference electrode, three electrodes are placed in described mixed electrolytic solution, adopt constant voltage galvanoplastic, arranging current potential is 0.5 ~ 1V, plating amount is 5 ~ 120C, by conducting polymer monomer and graphene oxide electrochemical polymer deposition at anode surface, then uses washed with de-ionized water, room temperature is dried, and obtains conducting polymer/graphene oxide modified anode;
(3) electrochemical workstation is utilized, adopt three-electrode system, the conducting polymer prepared in (2)/graphene oxide modified anode is as work electrode, using platinum electrode as to electrode, using saturated calomel electrode or saturated silver chloride electrode as reference electrode, three electrodes are placed in 0.1 ~ 1molL
-1in electrolyte, adopt cyclic voltammetry, arranging reduction potential is-1.0 ~ 0V, sweep speed for 5mV/s, the reduction number of turns is 10 ~ 20 circles, conducting polymer/graphene oxide modified anode is reduced to conducting polymer/electrochemical reduction graphene oxide modified anode, by washed with de-ionized water, room temperature is dried, i.e. obtained graphene/ conductive polymer anode for microbial fuel cell.
2. the preparation method of graphene/ conductive polymer anode for microbial fuel cell according to claim 1, is characterized in that described in step (1), conducting polymer monomer comprises pyrroles, aniline or thiophene.
3. the preparation method of graphene/ conductive polymer anode for microbial fuel cell according to claim 1, is characterized in that described in step (2), preliminary treatment is at deionized water and 30%H by carbon-based material
2o
2at 90 DEG C, respectively 2h is heated in the aqueous solution.
4. the preparation method of graphene/ conductive polymer anode for microbial fuel cell according to claim 1, is characterized in that electrolyte described in step (3) is aqueous sodium persulfate solution or the sodium perchlorate aqueous solution.
5. the preparation method of graphene/ conductive polymer anode for microbial fuel cell according to claim 1, is characterized in that step (2) described carbon-based material comprises carbon felt or graphite felt.
6. graphene/ conductive polymer anode for microbial fuel cell, is characterized in that, is prepared from by the method described in claim 1 to 5 any one.
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| CN110993962B (en) * | 2019-11-25 | 2022-02-11 | 河北科技大学 | Heteropolyacid/reduced graphene oxide/polypyrrole composite material and preparation method and application thereof |
| CN111244474A (en) * | 2020-03-30 | 2020-06-05 | 山东交通学院 | Anode biochar composite material of microbial fuel cell and preparation method thereof |
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|---|---|---|---|---|
| US20050221163A1 (en) * | 2004-04-06 | 2005-10-06 | Quanmin Yang | Nickel foam and felt-based anode for solid oxide fuel cells |
| CN102629684B (en) * | 2011-09-14 | 2015-03-18 | 京东方科技集团股份有限公司 | Polyaniline-graphene composite film and its preparation method, cells and e-books |
| CN102568848A (en) * | 2011-12-21 | 2012-07-11 | 天津大学 | Preparation method of polyaniline/graphene oxide composite electrode material |
| CN102760888A (en) * | 2012-07-16 | 2012-10-31 | 北京工业大学 | Preparation and application of graphene/substrate electrode and polyaniline-graphene/substrate electrode |
| CN102817057B (en) * | 2012-08-02 | 2016-07-06 | 上海交通大学 | Graphene oxide/conducting polymer composite deposite and preparation method thereof |
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