CN105355952A - Microbial fuel reactor and battery applying same - Google Patents

Microbial fuel reactor and battery applying same Download PDF

Info

Publication number
CN105355952A
CN105355952A CN201510841464.XA CN201510841464A CN105355952A CN 105355952 A CN105355952 A CN 105355952A CN 201510841464 A CN201510841464 A CN 201510841464A CN 105355952 A CN105355952 A CN 105355952A
Authority
CN
China
Prior art keywords
anode
cathode
layer
reactor
nickel foam
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
Application number
CN201510841464.XA
Other languages
Chinese (zh)
Inventor
曾丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Jiushidu Industrial Product Design Co Ltd
Original Assignee
Chengdu Jiushidu Industrial Product Design Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Jiushidu Industrial Product Design Co Ltd filed Critical Chengdu Jiushidu Industrial Product Design Co Ltd
Priority to CN201510841464.XA priority Critical patent/CN105355952A/en
Publication of CN105355952A publication Critical patent/CN105355952A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
    • 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • 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
    • 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
    • H01M8/0289—Means for holding the electrolyte
    • 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)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Inert Electrodes (AREA)

Abstract

The invention discloses a microbial fuel reactor and belongs to the field of reactors. The microbial fuel reactor comprises a seal shell and an anode and a cathode arranged in the seal shell, microorganisms adhere to the surface of the anode and the surface of the cathode, an ion exchange membrane is arranged between the anode and the cathode, the anode is connected with a positive pole of a battery, the cathode is connected with a negative pole of the battery, and the seal shell is filled with media; the anode is made of surface titanium/nitrogen doped mesoporous graphene aerogel, and the cathode is a VO<2>/S-AC foamed nickel air cathode; the microorganisms are shewanella putrefaciens, and the media are p-trimethylamine oxide. The microbial fuel reactor has the advantages that the electrode surface activation area is large, electrostatic interaction between the microorganisms and the electrode surface is increased, adsorbability of the microorganisms is enhanced, catalytic performance is good, thereby the electricity output is raised, and production cost is lowered.

Description

A kind of Microbial fuel reactor and apply the battery of this reactor
Technical field
The present invention relates to a kind of reactor, particularly a kind of Microbial fuel reactor.
Background technology
Along with continuing to increase of world population number, the mankind are subject to the impact of energy resources deficiency and ecological deterioration day by day, therefore tap a new source of energy and are paid attention to widely, and utilize reproducible biomass power generation to be a kind of effective means.Microbiological fuel cell (Microbialfuelcells, MFC), as a kind of new method utilizing microbial metabolism to produce electric energy, receives the concern of more people in recent years.It is a kind of device utilizing microbe to be electric energy as catalyst by converts chemical energy, and microbe can metabolism organic substance, produces electric energy simultaneously.But existing microbiological fuel cell generally has the low shortcoming of electrogenesis amount; Anode surface area of the prior art is general less simultaneously, be unfavorable for a large amount of attachments of microbe, and catalysis efficiency applicable surface is narrow; In prior art, the platinum that adopts as cathod catalyst more, although excellent catalytic effect, too expensive.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, there is provided a kind of electrode surface active area larger, increase the electrostatic interaction between microbe and electrode surface, increase microorganism adsorption, catalytic performance is good, thus improve electricity output, and reduce the Microbial fuel reactor of production cost.
The technical solution used in the present invention is as follows:
A kind of Microbial fuel reactor of the present invention, the anode comprising capsul and be arranged in capsul and negative electrode, described anode and cathode surface are attached with microbe, amberplex is provided with between described anode and negative electrode, described anode is connected with anode, described negative electrode is connected with battery cathode, is full of medium in described capsul; Described anode is the mesoporous graphene aerogel of surperficial titanium/N doping, and described negative electrode is VO 2/ S-AC nickel foam air cathode; Described microbe is Shewanella putrefaciens, and described medium is to TMAO.
Owing to have employed technique scheme, reactor is separated into anode chamber and cathode chamber by amberplex, under anode chamber's anaerobic environment, under the effect of TMAO Shewanella putrefaciens, degraded produces trimethylamine, and then generating dimethylamine and formaldehyde etc., the oxygen in cathode chamber, under the catalytic action of negative electrode, obtains electronics and is reduced and is combined into water with proton.
Anode electrode surface active area is comparatively large, increases the electrostatic interaction between microbe and electrode surface, and increase microorganism adsorption, catalytic performance is good; Cathode catalysis performance is good, and the price of vanadium is lower than platinum, reduces production cost.
A kind of Microbial fuel reactor of the present invention, described ionic membrane exchange membrane comprises cell nafion proton membrane one, and the lower floor of described cell nafion proton membrane one is coated with silicon dioxide layer, and the lower floor of described silicon dioxide is coated with cell nafion proton membrane two; The thickness of described silicon dioxide layer is 450nm, and described cell nafion proton membrane one surface is covered with PDDA layer, and described cell nafion proton membrane two surface is covered with PSS layer.
Owing to have employed technique scheme, SiO 2the sulfonate radical on surface hydroxyl and cell nafion proton membrane surface interacts and serves physical crosslinking polymer effect, PDDA layer and PSS layer can realize being cross-linked sulfonic acid group in cell nafion proton membrane, improve the water content of film, proton is more easily freely passed through, improve proton conductivity and the energy efficiency of ionic membrane, avoid microbial metabolic products to the pollution of ionic membrane simultaneously, ensure that the proton conductivity of ionic membrane, improve the energy efficiency of battery.
A kind of Microbial fuel reactor of the present invention, the mesoporous graphene aerogel of described surperficial titanium/N doping has three-dimensional netted loose structure, and pore size is 9 μm; Described VO 2the VO on/S-AC nickel foam air cathode surface 2/ S-AC layer is nanometer thin sheet, described VO 2the thickness of/S-AC layer is 300nm, described VO 2the dimethyl silicone polymer on/S-AC nickel foam air cathode surface and the load capacity of carbon black are 6.25mg/cm 2and 1.56mg/cm 2.
Owing to have employed technique scheme, three-dimensional grapheme good conductivity, biocompatibility is high, the aerogel structure that easy formation is three-dimensional porous, the mesoporous graphene aerogel of titanium/N doping has hydrophilic surface, and reduce surface of graphene oxide hydrophobicity, electrolyte more easily infiltrates, conductivity is better, improves its reactivity area in anolyte.
VO 2/ S-AC nickel foam air cathode, VO 2there is higher redox catalysis active, by VO 2mix with S-AC as Catalytic Layer, utilize chemical reaction that carbonaceous conductive material and catalyst are formed composite material, add electro-chemical activity current potential and surface area, microbiological fuel cell can be made to obtain good electricity generation performance, in order to reduce the production cost of microorganism fuel cell cathode further, more be close to the practical application of microbiological fuel cell, select price relatively cheap, the higher nickel foam of conductivity is as current collector material, under the prerequisite of control electrode cost, obtain the efficiency of fuel cell generation of higher microbiological fuel cell.
A kind of Microbial fuel reactor of the present invention, described anode is prepared from by following steps:
Step one: by the concentrated sulfuric acid: graphite powder: sodium nitrate mass ratio 65:1:0.6 adds graphite powder and sodium nitrate under the condition of ice bath in the concentrated sulfuric acid, after stirring and dissolving 30min, according to graphite powder: potassium permanganate mass ratio 1:5, potassium permanganate is added in mixed solution, after stirring 10h, according to the concentrated sulfuric acid: deionized water volume ratio 1:1 adds deionized water in mixed solution, mixture being placed in vacuum degree is under the condition of 0.93, 52 DEG C are slowly warming up to according to the speed of 1.2 DEG C/h, after keeping 52 DEG C of constant temperature to continue to stir 22h, in mixed solution, hydrogen peroxide is added than hydrogen peroxide volume ratio 1:0.1 according to the concentrated sulfuric acid, centrifugal stir 2.5h at 52 DEG C of temperature after, Separation of Solid and Liquid is got solid, solid uses watery hydrochloric acid and the deionized water rinsing of 5% respectively, graphene oxide is obtained after drying,
Step 2: graphene oxide is configured to the solution that concentration is 1.3mg/mL with deionized water; in solution, tetrazotization Tritanium/Trititanium is added according to mass ratio 8:1; after the ultrasonic 2h of room temperature; after reacting 10min under the condition of microwave reaction 100W; mixed solution is placed in teflon-lined thermal response still; be filled with argon gas to seal as after protection gas; vacuumize and reach vacuum degree 0.8; be warming up to 180 DEG C of reaction 36h; normal temperature is cooled to, the obtained mesoporous graphene aerogel of surperficial titanium/N doping under argon shield gas exists.
Owing to have employed technique scheme, obtained anode---the mesoporous graphene aerogel of surperficial titanium/N doping has three-dimensional netted loose structure, and tridimensional network there will not be disintegration phenomenon; Pore size is 9 μm, and applicable bacterium enters.
A kind of Microbial fuel reactor of the present invention, described negative electrode is made by following steps:
Step one: according to mass ratio 1:1 by polyvinyl alcohol, is mixed with the catalysis emulsion that concentration is 10%, by VO after polytetrafluoroethylene mixes 2mix according to mass ratio 2:1 with S-AC, take VO according to mass ratio 1:3 2/ S-AC mixture and catalysis emulsion, by VO 2mixed solution, through ultrasonic wave mixing 40min, is heated to 65 DEG C by/S-AC mixture and catalysis emulsion, and Keep agitation 2h breakdown of emulsion, obtains Catalytic Layer raw material;
Step 2: the thin slice by tablet press machine, nickel foam being pressed into 0.6mm, by Catalytic Layer raw material equably blade coating in nickel foam upper surface, be 70kPa at pressure subsequently, power is microwave reaction 5min under the condition of 100W, powder unnecessary for sheet surface is swept gently, obtains the nickel foam being covered with Catalytic Layer;
Step 3: dimethyl silicone polymer is configured to the solution that concentration is 10% with DMF, according to dimethyl silicone polymer: carbon black mass adds carbon black than 1:4 in solution, after mixing, obtain diffusion layer raw material, diffusion layer raw material uniform application is being covered with the nickel foam lower surface of Catalytic Layer, smearing thickness is 0.1mm, puts into drying box subsequently under the condition of 80 DEG C to dry, and obtains VO 2/ S-AC nickel foam air cathode.
Owing to have employed technique scheme, the negative electrode prepared---VO 2the VO on/S-AC nickel foam air cathode surface 2/ S-AC layer is nanometer thin sheet, and the external surface area after two kinds of catalyst compounds significantly improves, and active sites increases, VO 2at the formation microcellular structure of activated carbon surface, increase considerably porosity, accelerated material Transfer.
A kind of microbiological fuel cell applying mentioned microorganism fuel reactor of the present invention, comprise setting reactor in the enclosure and the anode be arranged on outside shell and battery cathode, the bottom of described anode is connected to one end of reactor; The bottom of described battery cathode is connected to the other end of reactor.
Owing to have employed technique scheme, reactor produces electric energy, can form loop by connection anode and battery cathode, the electric energy release produced by reactor.
A kind of microbiological fuel cell applying above-mentioned reactor of the present invention, is provided with flame-resistant insulation layer between described anode and battery cathode, described flame-resistant insulation layer is overlying on capsul upper surface; Filled media is full of between shell and capsul; The bottom of described shell is provided with media exchanger, and described media exchanger is connected with capsul inside by passage.
Owing to have employed technique scheme, flame-resistant insulation layer by flame-resistant insulation, can improve the security performance of battery; Can constantly supplement new medium by media exchanger and enter reactor, ensure the continuous firing of battery, extend the useful life of battery.
A kind of microbiological fuel cell of the present invention, described filled media comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral.
Owing to have employed technique scheme, this filled media has the features such as waterproof, fire-retardant, high temperature resistant, resist chemical, and lighter weight, improve the security performance of battery.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, electrode surface active area is comparatively large, increases the electrostatic interaction between microbe and electrode surface, and increase microorganism adsorption, catalytic performance is good, and electric energy productive rate is high.
2, reduce the production cost of microorganism fuel cell cathode, be more close to the practical application of microbiological fuel cell, under the prerequisite of control electrode cost, obtain the efficiency of fuel cell generation of higher microbiological fuel cell.
3, flame-resistant insulation, improves the security performance of battery; Constantly supplement new medium and enter reactor, ensure the continuous firing of battery, extend the useful life of battery.
4, improve proton conductivity and the energy efficiency of ionic membrane, avoid microbial metabolic products to the pollution of ionic membrane simultaneously, ensure that the proton conductivity of ionic membrane, improve the energy efficiency of battery.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of microbiological fuel cell of using microbe fuel reactor;
Fig. 2 is a kind of operation principle schematic diagram of microbiological fuel cell of using microbe fuel reactor;
Fig. 3 is the SEM figure of the three-dimensional netted loose structure of the mesoporous graphene aerogel of surperficial titanium/N doping;
Fig. 4 is VO 2the VO on/S-AC nickel foam air cathode surface 2the SEM figure of/S-AC layer.
Mark in figure: 1 is reactor, and 2 is anode, and 3 is negative electrode, and 4 is microbe, and 5 is medium, 6 is capsul, and 7 is amberplex, and 8 is anode, and 9 is battery cathode, and 10 is flame-resistant insulation layer, 11 is shell, and 12 is filled media, and 13 is media exchanger, and 14 is passage.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make the object of invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figures 1 to 4, a kind of Microbial fuel reactor, comprise capsul 6 and the anode 2 be arranged in capsul 6 and negative electrode 3, anode 2 and negative electrode 3 surface attachment have microbe 4, amberplex 7 is provided with between anode 2 and negative electrode 3, anode 2 is connected with anode 8, and negative electrode 3 is connected with battery cathode 9, is full of medium 5 in capsul 6; Anode 2 is the mesoporous graphene aerogel of surperficial titanium/N doping, and negative electrode 3 is VO2/S-AC nickel foam air cathode; Microbe 4 is Shewanella putrefaciens, and medium 5 is to TMAO.
Ionic membrane exchange membrane 7 comprises cell nafion proton membrane one, and the lower floor of cell nafion proton membrane one is coated with silicon dioxide layer, and the lower floor of silicon dioxide is coated with cell nafion proton membrane two; The thickness of silicon dioxide layer is 450nm, and cell nafion proton membrane one surface is covered with PDDA layer, and cell nafion proton membrane two surface is covered with PSS layer.
Titanium/N doping mesoporous graphene aerogel in surface has three-dimensional netted loose structure, and pore size is 9 μm; VO 2the VO on/S-AC nickel foam air cathode surface 2/ S-AC layer is nanometer thin sheet, VO 2the thickness of/S-AC layer is 300nm, VO 2the dimethyl silicone polymer on/S-AC nickel foam air cathode surface and the load capacity of carbon black are 6.25mg/cm 2and 1.56mg/cm 2.
Embodiment 2
Anode 2 is prepared from by following steps:
Step one: by the concentrated sulfuric acid: graphite powder: sodium nitrate mass ratio 65:1:0.6 adds graphite powder and sodium nitrate under the condition of ice bath in the concentrated sulfuric acid, after stirring and dissolving 30min, according to graphite powder: potassium permanganate mass ratio 1:5, potassium permanganate is added in mixed solution, after stirring 10h, according to the concentrated sulfuric acid: deionized water volume ratio 1:1 adds deionized water in mixed solution, mixture being placed in vacuum degree is under the condition of 0.93, 52 DEG C are slowly warming up to according to the speed of 1.2 DEG C/h, after keeping 52 DEG C of constant temperature to continue to stir 22h, in mixed solution, hydrogen peroxide is added than hydrogen peroxide volume ratio 1:0.1 according to the concentrated sulfuric acid, centrifugal stir 2.5h at 52 DEG C of temperature after, Separation of Solid and Liquid is got solid, solid uses watery hydrochloric acid and the deionized water rinsing of 5% respectively, graphene oxide is obtained after drying,
Step 2: graphene oxide is configured to the solution that concentration is 1.3mg/mL with deionized water; in solution, tetrazotization Tritanium/Trititanium is added according to mass ratio 8:1; after the ultrasonic 2h of room temperature; after reacting 10min under the condition of microwave reaction 100W; mixed solution is placed in teflon-lined thermal response still; be filled with argon gas to seal as after protection gas; vacuumize and reach vacuum degree 0.8; be warming up to 180 DEG C of reaction 36h; normal temperature is cooled to, the obtained mesoporous graphene aerogel of surperficial titanium/N doping under argon shield gas exists.
Embodiment 3
Negative electrode 3 is made by following steps:
Step one: according to mass ratio 1:1 by polyvinyl alcohol, is mixed with the catalysis emulsion that concentration is 10%, by VO after polytetrafluoroethylene mixes 2mix according to mass ratio 2:1 with S-AC, take VO according to mass ratio 1:3 2/ S-AC mixture and catalysis emulsion, by VO 2mixed solution, through ultrasonic wave mixing 40min, is heated to 65 DEG C by/S-AC mixture and catalysis emulsion, and Keep agitation 2h breakdown of emulsion, obtains Catalytic Layer raw material;
Step 2: the thin slice by tablet press machine, nickel foam being pressed into 0.6mm, by Catalytic Layer raw material equably blade coating in nickel foam upper surface, be 70kPa at pressure subsequently, power is microwave reaction 5min under the condition of 100W, powder unnecessary for sheet surface is swept gently, obtains the nickel foam being covered with Catalytic Layer;
Step 3: dimethyl silicone polymer is configured to the solution that concentration is 10% with DMF, according to dimethyl silicone polymer: carbon black mass adds carbon black than 1:4 in solution, after mixing, obtain diffusion layer raw material, diffusion layer raw material uniform application is being covered with the nickel foam lower surface of Catalytic Layer, smearing thickness is 0.1mm, puts into drying box subsequently under the condition of 80 DEG C to dry, and obtains VO 2/ S-AC nickel foam air cathode.
Embodiment 4
As shown in Figures 1 to 4, a kind of based on the microbiological fuel cell to TMAO medium, comprise and be arranged on reactor in shell 11 1 and the anode 8 be arranged on outside shell 11 and battery cathode 9, the bottom of anode 8 is connected to one end of reactor 1; The bottom of battery cathode 9 is connected to the other end of reactor 1.
Reactor 1 comprises capsul 6 and the anode 2 be arranged in capsul 6 and negative electrode 3, anode 2 and negative electrode 3 surface attachment have microbe 4, and be provided with amberplex 7 between anode 2 and negative electrode 3, anode 2 is connected with anode 8, negative electrode 3 is connected with battery cathode 9, is full of medium 5 in capsul 6.
Anode 2 is the mesoporous graphene aerogel of surperficial titanium/N doping, and negative electrode 3 is VO 2/ S-AC nickel foam air cathode.
Microbe 4 is Shewanella putrefaciens, and medium 5 is to TMAO.Medium 5 TMAO is under the effect of Shewanella putrefaciens 4, and degraded produces trimethylamine, and then generates dimethylamine and formaldehyde etc., and the oxygen in cathode chamber, under the catalytic action of negative electrode, obtains electronics and is reduced and is combined into water with proton.Make when external circuit and anode 8 are connected with battery cathode 9, electronics moves generation current, thus the electric energy release that reactor is produced.
Flame-resistant insulation layer 10 is provided with between anode 8 and battery cathode 9, flame-resistant insulation layer 10 is overlying on capsul 6 upper surface, flame-resistant insulation layer 10 comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral; Filled media 12 is full of between shell 11 and capsul 6, filled media 12 is identical with the material of flame-resistant insulation layer 10, filled media 12 comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral; The bottom of shell 11 is provided with media exchanger 13, media exchanger 13 is connected with capsul 6 inside by passage 14, medium 5 TMAO can under the effect of media exchanger 13, constantly add in reactor, and the unnecessary water of generation in reactor is by under the effect of media exchanger 13, leave reactor, thus ensure the work of reactor continuous and effective.
Ionic membrane exchange membrane 7 comprises cell nafion proton membrane one, and the lower floor of cell nafion proton membrane one is coated with silicon dioxide layer, and the lower floor of silicon dioxide is coated with cell nafion proton membrane two; The thickness of silicon dioxide layer is 450nm, and cell nafion proton membrane one surface is covered with PDDA layer, and cell nafion proton membrane two surface is covered with PSS layer.
Titanium/N doping mesoporous graphene aerogel in surface has three-dimensional netted loose structure, and pore size is 9 μm; VO 2the VO on/S-AC nickel foam air cathode surface 2/ S-AC layer is nanometer thin sheet, VO 2the thickness of/S-AC layer is 300nm, VO 2the dimethyl silicone polymer on/S-AC nickel foam air cathode surface and the load capacity of carbon black are 6.25mg/cm 2and 1.56mg/cm 2.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a Microbial fuel reactor, it is characterized in that: comprise capsul (6) and the anode (2) that is arranged in capsul (6) and negative electrode (3), described anode (2) and negative electrode (3) surface attachment have microbe (4), amberplex (7) is provided with between described anode (2) and negative electrode (3), described anode (2) is connected with anode (8), described negative electrode (3) is connected with battery cathode (9), is full of medium (5) in described capsul (6); Described anode (2) is the mesoporous graphene aerogel of surperficial titanium/N doping, and described negative electrode (3) is VO2/S-AC nickel foam air cathode; Described microbe (4) is Shewanella putrefaciens, and described medium (5) is to TMAO.
2. a kind of Microbial fuel reactor as claimed in claim 1, it is characterized in that: described ionic membrane exchange membrane (7) comprises cell nafion proton membrane one, the lower floor of described cell nafion proton membrane one is coated with silicon dioxide layer, and the lower floor of described silicon dioxide is coated with cell nafion proton membrane two; The thickness of described silicon dioxide layer is 450nm, and described cell nafion proton membrane one surface is covered with PDDA layer, and described cell nafion proton membrane two surface is covered with PSS layer.
3. a kind of Microbial fuel reactor as claimed in claim 1 or 2, is characterized in that: the mesoporous graphene aerogel of described surperficial titanium/N doping has three-dimensional netted loose structure, and pore size is 9 μm; Described VO 2the VO on/S-AC nickel foam air cathode surface 2/ S-AC layer is nanometer thin sheet, described VO 2the thickness of/S-AC layer is 300nm, described VO 2the dimethyl silicone polymer on/S-AC nickel foam air cathode surface and the load capacity of carbon black are 6.25mg/cm 2and 1.56mg/cm 2.
4. a kind of Microbial fuel reactor as claimed in claim 3, is characterized in that, described anode (2) is prepared from by following steps:
Step one: by the concentrated sulfuric acid: graphite powder: sodium nitrate mass ratio 65:1:0.6 adds graphite powder and sodium nitrate under the condition of ice bath in the concentrated sulfuric acid, after stirring and dissolving 30min, according to graphite powder: potassium permanganate mass ratio 1:5, potassium permanganate is added in mixed solution, after stirring 10h, according to the concentrated sulfuric acid: deionized water volume ratio 1:1 adds deionized water in mixed solution, mixture being placed in vacuum degree is under the condition of 0.93, 52 DEG C are slowly warming up to according to the speed of 1.2 DEG C/h, after keeping 52 DEG C of constant temperature to continue to stir 22h, in mixed solution, hydrogen peroxide is added than hydrogen peroxide volume ratio 1:0.1 according to the concentrated sulfuric acid, centrifugal stir 2.5h at 52 DEG C of temperature after, Separation of Solid and Liquid is got solid, solid uses watery hydrochloric acid and the deionized water rinsing of 5% respectively, graphene oxide is obtained after drying,
Step 2: graphene oxide is configured to the solution that concentration is 1.3mg/mL with deionized water; in solution, tetrazotization Tritanium/Trititanium is added according to mass ratio 8:1; after the ultrasonic 2h of room temperature; after reacting 10min under the condition of microwave reaction 100W; mixed solution is placed in teflon-lined thermal response still; be filled with argon gas to seal as after protection gas; vacuumize and reach vacuum degree 0.8; be warming up to 180 DEG C of reaction 36h; normal temperature is cooled to, the obtained mesoporous graphene aerogel of surperficial titanium/N doping under argon shield gas exists.
5. a kind of Microbial fuel reactor as claimed in claim 3, is characterized in that, described negative electrode (3) is made by following steps:
Step one: according to mass ratio 1:1 by polyvinyl alcohol, is mixed with the catalysis emulsion that concentration is 10%, by VO after polytetrafluoroethylene mixes 2mix according to mass ratio 2:1 with S-AC, take VO according to mass ratio 1:3 2/ S-AC mixture and catalysis emulsion, by VO 2mixed solution, through ultrasonic wave mixing 40min, is heated to 65 DEG C by/S-AC mixture and catalysis emulsion, and Keep agitation 2h breakdown of emulsion, obtains Catalytic Layer raw material;
Step 2: the thin slice by tablet press machine, nickel foam being pressed into 0.6mm, by Catalytic Layer raw material equably blade coating in nickel foam upper surface, be 70kPa at pressure subsequently, power is microwave reaction 5min under the condition of 100W, powder unnecessary for sheet surface is swept gently, obtains the nickel foam being covered with Catalytic Layer;
Step 3: dimethyl silicone polymer is configured to the solution that concentration is 10% with DMF, according to dimethyl silicone polymer: carbon black mass adds carbon black than 1:4 in solution, after mixing, obtain diffusion layer raw material, diffusion layer raw material uniform application is being covered with the nickel foam lower surface of Catalytic Layer, smearing thickness is 0.1mm, puts into drying box subsequently under the condition of 80 DEG C to dry, and obtains VO 2/ S-AC nickel foam air cathode.
6. the microbiological fuel cell of the Microbial fuel reactor of an application as described in claim 1-5, it is characterized in that: comprise the reactor (1) that is arranged in shell (11) and be arranged on shell (11) anode outward (8) and battery cathode (9), the bottom of described anode (8) is connected to one end of reactor (1); The bottom of described battery cathode (9) is connected to the other end of reactor (1).
7. a kind of microbiological fuel cell as claimed in claim 6, is characterized in that: be provided with flame-resistant insulation layer (10) between described anode (8) and battery cathode (9), and described flame-resistant insulation layer (10) is overlying on capsul (6) upper surface; Filled media (12) is full of between shell (11) and capsul (6); The bottom of described shell (11) is provided with media exchanger (13), and described media exchanger (13) is connected with capsul (6) inside by passage (14).
8. a kind of microbiological fuel cell as claimed in claim 7, it is characterized in that: described filled media (12) comprises 37% vinylite, 21% silica gel, 5% plasticiser, 3% dibasic lead stearate, 3% containing oxygen silicone oil, 4% platinum complex, 5% ethynylcyclohexanol, 3% mica, 9% siloxane oligomer and 10% repefral.
CN201510841464.XA 2015-11-28 2015-11-28 Microbial fuel reactor and battery applying same Pending CN105355952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510841464.XA CN105355952A (en) 2015-11-28 2015-11-28 Microbial fuel reactor and battery applying same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510841464.XA CN105355952A (en) 2015-11-28 2015-11-28 Microbial fuel reactor and battery applying same

Publications (1)

Publication Number Publication Date
CN105355952A true CN105355952A (en) 2016-02-24

Family

ID=55331869

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510841464.XA Pending CN105355952A (en) 2015-11-28 2015-11-28 Microbial fuel reactor and battery applying same

Country Status (1)

Country Link
CN (1) CN105355952A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106684419A (en) * 2017-02-21 2017-05-17 南京大学 Photo-assisted microorganism fuel battery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103153883A (en) * 2011-05-04 2013-06-12 Rm泰科株式会社 Method for heavy metal elimination or precious metal recovery using microbial fuel cell
CN205194785U (en) * 2015-11-28 2016-04-27 成都九十度工业产品设计有限公司 Battery of little biofuel reactor and applied this reactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103153883A (en) * 2011-05-04 2013-06-12 Rm泰科株式会社 Method for heavy metal elimination or precious metal recovery using microbial fuel cell
CN205194785U (en) * 2015-11-28 2016-04-27 成都九十度工业产品设计有限公司 Battery of little biofuel reactor and applied this reactor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
杨斯琦等: "微生物燃料电池MnO2/S-AC泡沫镍空气阴极的制备及其性能", 《化工学报》 *
陈慧等: "Shewanella燃料电池的原理、组成和性能", 《环境科学与技术》 *
马彩霞等: "表面铁／氮掺杂介孔石墨烯气凝胶提升微生物燃料电池阳极性能的研究", 《功能材料》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106684419A (en) * 2017-02-21 2017-05-17 南京大学 Photo-assisted microorganism fuel battery
CN106684419B (en) * 2017-02-21 2020-07-17 南京大学 Photo-assisted microbial fuel cell

Similar Documents

Publication Publication Date Title
AU2020101412A4 (en) Direct methanol fuel cell membrane electrode for improving catalyst utilization and preparation method thereof
An et al. The dual role of hydrogen peroxide in fuel cells
CN105552393B (en) A kind of alkaline water system metal-air batteries bifunctional catalyst and preparation method thereof
Ong et al. Applications of graphene nano-sheets as anode diffusion layers in passive direct methanol fuel cells (DMFC)
CN104701555B (en) A kind of air electrode of zinc-air cell and preparation method thereof based on graphene
JP6184256B2 (en) Cathode for microbial fuel cell, method for producing the same, and microbial fuel cell
CN109786762B (en) Structure of gradient hydrophilic-hydrophobic/air electrode and preparation method thereof
CN109482214A (en) The catalyst and preparation method of a kind of graphene-supported ruthenium metal and application
CN102903938A (en) Polymer fiber film methanol fuel cell with cathode adopting non-noble metal catalyst and preparation method thereof
CN109304464B (en) Hollow cage-shaped carbon/Ru composite microsphere for hydrogen production by electrolyzing water and preparation method thereof
CN105355929A (en) Microbial fuel cell based on trimethylamine oxide medium
CN113437305A (en) 2D-Co @ NC composite material and preparation method and application thereof
CN105355927A (en) VO2/S-AC nickel foam air cathode
CN205194785U (en) Battery of little biofuel reactor and applied this reactor
CN101325266B (en) Power supply system for minisize composite regenerative fuel battery
CN108270018A (en) A kind of cobalt-N doping 2 D mesopore carbon material and its preparation method and application
CN107221682A (en) A kind of microbiological fuel cell composite cathode and preparation method and application
CN104143644A (en) Microbial fuel cell, anode, anode catalyst and preparation method thereof
CN205231184U (en) Microbiological fuel cell based on two tert -butyl group pyridine media of 2, 6 -
CN105489917A (en) Microbial fuel cell for treating domestic sewage
CN205355155U (en) Microbiological fuel cell based on to trimethyl -amine oxide medium
CN113078327A (en) Preparation method of carbon aerogel containing bimetallic site and application of aluminum-air battery
CN108258267A (en) A kind of acid cathode-alkali anode low temperature alcohol fuel battery
CN105355952A (en) Microbial fuel reactor and battery applying same
CN105355928A (en) Surface titanium/nitrogen doped mesoporous graphene aerogel electrode

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160224