CN106229535B - Utilize the method for the device and its storage biological power of three electrode storage biological powers - Google Patents
Utilize the method for the device and its storage biological power of three electrode storage biological powers Download PDFInfo
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- CN106229535B CN106229535B CN201610816217.9A CN201610816217A CN106229535B CN 106229535 B CN106229535 B CN 106229535B CN 201610816217 A CN201610816217 A CN 201610816217A CN 106229535 B CN106229535 B CN 106229535B
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- 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
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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
Abstract
The invention discloses the device using three electrode storage biological powers and its methods for storing biological power.Device includes anode chamber, capacitor room, cathode chamber and amberplex, anode chamber is separated by amberplex respectively with capacitor room, capacitor room and cathode chamber, phosphate buffer is added in capacitor room, electricity production bacterium is added in the anode compartment and organic matter forms the anode chamber microbiological fuel cell MFC.It is stored on the capacitance electrode that the electronics that the electricity production bacterium being attached on anode in the charging stage, anode chamber generates is transmitted in capacitor room by external circuit；In discharge regime, the electronics stored on the capacitance electrode of full electricity is quickly transmitted on cathode electrode by external circuit, and the electron acceptor in cathode obtains electronics, to realize the raising of the power density of battery output.
Description
Technical field
The present invention relates to microbiological fuel cell field, specifically a kind of device using three electrode storage biological powers and
It stores the method for biological power.
Background technique
The problem of environmental pollution that is on the rise and seek the new energy be the mankind faced on sustainable development path two
Big fundamental issue.With the development of economy, waste is treated as an important problem.Wherein industrial wastewater ingredient is multiple
Miscellaneous, strong toxicity, effect on environment is severe, and it is very big to deal with difficulty.However, energy consumption is a great influence in sewage treatment
Factor.In the U.S., the electric power in the whole nation 5% is used for the operation of water delivery infrastructure, and 1.5% electric power is utilized separately at sewage
Reason.
The exhaustion of fossil fuel, the mankind have to find new alternative energy source.Environmental problem is got worse, and the mankind are necessary
It examines closely and readjusts the energy structure.And waste is not valueless at all, key is how the mankind utilize.In such overall background
Under, microbiological fuel cell (Microbial fuel cells, abbreviation MFCs) comes into being.Microbiological fuel cell is with micro-
Biology is that catalyst is converted into the chemical energy in organic matter in the device of electric energy, to reach while handle pollutant and production
The purpose of raw energy, therefore attracted the concern of numerous researchers.
Due at present for microbiological fuel cell utilization efficiency it is also relatively low, improve the utilization of microbiological fuel cell
On the one hand efficiency accelerates the removal rate of COD, on the other hand improve the power density of microbiological fuel cell, is current research heat
Point.And three electrode microbial fuel cell units can be very good to meet above this two o'clock requirement, for microbiological fuel cell
Practical application have great importance.
Summary of the invention
It is an object of the invention to pass through the device of three electrode microbiological fuel cells, the transmission efficiency of electronics is improved, from
And improve the power density of microbiological fuel cell and accelerate the speed that microbiological fuel cell utilizes COD, to widen micro-
Biological fuel cell application range promotes microbiological fuel cell development and application.
Realize that technical solution used by the object of the invention includes:
Utilize the device of three electrode storage biological powers, including anode chamber, capacitor room, cathode chamber and amberplex, electricity
Between anode chamber and cathode chamber, anode chamber and capacitor room, capacitor room and cathode chamber are all separated by amberplex room, sun
Have ON-OFF control circuit between pole room and capacitor room, capacitor room and cathode chamber cut-offs road；Electrode is using electricity in the capacitor room
Capacitive electrode, the capacitive electrode are that have super electricity by modifying the production of super capacitor material in pretreated electrode of the substrate
The capacitive electrode of capacitive；Electrode in anode is by the preferable material of modified biological compatibility in pretreated electrode of the substrate
It is prepared, electricity production bacterium is added in the anode chamber and organic matter forms the anode chamber microbiological fuel cell MFC.
Further, phosphate buffer solution is added in the capacitor room, keeps electronic equilibrium；If the electricity production bacterium in anode chamber
It is full with the phosphate buffer filling of pH=8 in capacitor room for pure bacterium；If electricity production bacterium in anode chamber is Mixed Microbes, in capacitor room
It is full with the phosphate buffer filling of pH=7.
Further, the catholyte being added in the cathode chamber is potassium ferricyanide aqueous solution or the aqueous solution for being passed through air,
The concentration of the potassium ferricyanide aqueous solution is preferably 50-100mmol/L.
Further, the pretreatment, which refers to, is placed in electrode of the substrate in the hydrogen peroxide solution that mass fraction is 10wt%,
Water-bath is boiled 2 hours at 90 DEG C, and then with deionized water, water-bath is boiled 2 hours at 90 DEG C, then is dried with baking oven.
Further, in the pretreated electrode of the substrate modify super capacitor material method include Electrochemical Modification,
Chemical deposition, physical bond method or condensation seasoning；Wherein Electrochemical Modification includes constant potential plating, constant voltage plating, follows
The plating of ring voltammetry, chemical deposition is sol-gal process, physical bond method including the use of polytetrafluoroethylene (PTFE) thermo-compression bonding or
Nafion bonding.
Further, the method for modified biological compatibility material includes that electrochemistry is repaired in the pretreated electrode of the substrate
Decorations, chemical deposition modification, physical bond method or condensation seasoning；Wherein Electrochemical Modification includes constant potential plating, constant voltage
Plating, cyclic voltammetry plating, chemical deposition are sol-gal process, and physical bond method is viscous including the use of polytetrafluoroethylene (PTFE) hot pressing
Knot or Nafion bonding.
Further, the electrode of the substrate is the biology by graphene or the preferable material modification of other biological compatibility
The material that compatibility is preferable, electric conductivity is strong, including carbon cloth, graphite felt, carbon felt, carbon paper, stainless (steel) wire, nickel foam, stainless steel brush,
Black lead brush, plant fiber brush or sponge.
Further, the super capacitor material includes one in electric double layer capacitance electrode material and fake capacitance electrode material
Kind or more.
Further, the electric double layer capacitance electrode material, to utilize material large specific surface area itself, in electrode electricity
Solve the material of matter interface stored charge, including activated carbon, mesoporous carbon, graphene and its oxide or carbon nanotube.
Further, the hawk capacitance electrode material, for the faraday's reaction reversible by material prompt high itself
Realize storage material, including ruthenic oxide, manganese dioxide, ferriferous oxide, polypyrrole, polyaniline, polyacetylene, polyvinyl alcohol or
Poly- polyphenol.
Further, the electricity production bacterium includes in the Shewanella with electricity generation ability, ground bacillus and Escherichia coli
More than one.
Further, the organic matter include lactic acid, acetic acid, glucose, citric acid, practical biochemical waste water and they
One or more of corresponding salt.
It utilizes the method for the device storage biological power of three electrode storage biological powers: being used between anode chamber and capacitor room
The material of good conductivity connects；It is connected between capacitor room and cathode chamber with the material of good conductivity, and goes to control with switch
The connection of circuit；In the charging stage, switch is disconnected, and the electronics that the electricity production bacterium being attached on anode in anode chamber generates passes through dispatch from foreign news agency
It is stored on the capacitance electrode that road is transmitted in capacitor room；In discharge regime, switch connection is stored on full electric capacitance electrode
Electronics be quickly transmitted on cathode electrode by external circuit, the electron acceptor in cathode obtains electronics, to realize that battery is defeated
The raising of power density out.
Further, the material of the good conductivity includes titanium silk or iron wire.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
(1) traditional microbiological anode of fuel cell room is split as anode chamber and capacitor room by the present invention, can be to avoid capacitor
Material is by bacteria corrosion, to influence the performance of microbiological fuel cell.
(2) two switches are accessed in circuit, and can simply and effectively control different circuits cut-offs road, is conducive to anode
It the collection of electronics and is transmitted on capacitance electrode in time in room, the electronics on capacitance electrode quickly discharges to increase microorganism
The output power of fuel cell.
(3) present invention is by there is the electrode material of bigger serface, good conductivity, good biocompatibility to be packed into after modifying
The electrode for being modified with super capacitor material is packed into the capacitor of microbiological fuel cell by the anode chamber of microbiological fuel cell
Room forms built-in capacitor system in inside battery.
(4) electronics of generation is transmitted to capacitance electrode in the charging stage in time, microbial film and electrode can be accelerated
Between potential difference improve the removal rate of COD to accelerate the transmission efficiency of electronics.
(5) three-electrode system is less to the loss of electrode, does not need often to remove replacement electrode, a large amount of so as to save
Manpower and time have broader prospect to practical application.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram obtained using three electrode storage biological powers of embodiment 1；
Fig. 2 is dual electrode cell structural schematic diagram made from embodiment 2；
Fig. 3 is electricity under different running method under the conditions of difference battery maximum power density made from embodiment 1 and embodiment 2
The situation of change of pressure；
Fig. 4 is the power density curve graph of difference battery made from embodiment 1 and embodiment 2.
Specific embodiment
The present invention is more specifically described in detail combined with specific embodiments below, but embodiments of the present invention are unlimited
Routine techniques progress can refer to for not specifically specified technological parameter in this.
It is prepared by the device of three electrode storage biological energy sources
The processing method of anode electrode and capacitance electrode is as follows:
In the hydrogen peroxide solution for being 10wt% as mass fraction by black lead brush and carbon paper, water-bath is boiled 2 hours at 90 DEG C,
Then with deionized water, water-bath is boiled 2 hours at 90 DEG C, then is dried with baking oven.
(1) preparation of anode electrode:
It weighs 250mg graphene oxide powder to be placed in 100ml beaker, measures 50ml deionized water with graduated cylinder and pour into burning
Cup is dissolved, and is stirred 10 ~ 30 minutes, is then placed in supersonic wave cleaning machine and is ultrasonically treated 10 ~ 30min, is subsequently agitated for 10 ~ 30 points
Clock obtains graphene oxide dispersion liquid；Then (30-40ml) graphene oxide dispersion liquid is taken to be divided in 50ml centrifuge tube
In, it marks；The black lead brush pre-processed is put into centrifuge tube again, is allowed to be totally submerged in graphene oxide dispersion liquid
In.
Centrifuge tube is put into supersonic wave cleaning machine ultrasonic treatment 1h, baking oven is put into after taking-up, is aged for 24 hours, obtains at 60 DEG C
The graphene oxide hydrosol being gathered on black lead brush bracket.
The graphene oxide hydrosol being baked is taken out, liquid nitrogen frozen 1h is immediately placed in, it is then cold under vacuum conditions
Freeze and be dried 3 days, obtains 3D graphene oxide aeroge and be deposited on black lead brush；Extra aeroge is struck off, then
Obtain 3D graphene oxide aeroge-graphite brush electrode.
(2) preparation of capacitance electrode:
The method of modifying of carbon paper are as follows: take 8ml deionized water, add 1g polyvinyl alcohol, stirred strongly under the conditions of 85 DEG C；Together
When, 1g lithium chloride, which is dissolved, in the deionized water of 2ml prepares lithium chloride solution；After polyvinyl alcohol is completely dissolved, by lithium chloride
Solution pours into, and is stirred for 30min and waits for that it is completely dissolved and mixes completely, obtains colloidal electrolyte.
Obtained colloidal electrolyte is evenly coated on carbon paper, and connects titanium silk and makees conducting wire.
(3) cathode pretreating graphite felt the preparation method is as follows:
Graphite felt is placed in the water-bath at 90 DEG C of 10% hydrogen peroxide solution to boil 2 hours, then with isometric deionized water
Water-bath is boiled 2 hours at the same temperature, then is dried with baking oven；
Pretreated graphite felt is cut into (long 4cm × wide 4cm) size, is put on titanium silk.
(4) device assembles:
Graphene oxide aeroge-graphite brush electrode and anode room housing aperture are glued with AB glue, use same method
Capacitance electrode is packed into capacitor room again, graphite felt is packed into cathode chamber, placing 5 ~ 10 minutes makes its solidification.
Amberplex is pressed in cathode room housing, it is then with capacitor pole housing that cathode shell, amberplex is solid
It is fixed live, then be pressed in capacitor room housing with another amberplex, then with anode casing by capacitor pole housing, ion exchange
Film is fixed, and screw nut is finally screwed on.
By 50-100mmolL-1Potassium ferricyanide solution be added in cathode casing by cathode liquid filling hole, then use silica gel plug
It is stoppered.
Sodium lactate solution is added in anode cassette by anode liquid filling hole to (sodium lactate solution concentration is 800 in battery
Mmol/L), the pure bacterium of 2-10 ml Xi Washi is added, is eventually adding the phosphate buffer solution of pH=8.0, then be stoppered with silica gel plug,
Two steps operation afterwards carries out on a sterile work bench, is utilized the device of three electrode storage biological powers.
The resistance that 1000 Ω are connected in device external circuit connects data collector progress using titanium silk as conductive material
Data are acquired, setting acquisition data break is that acquisition in 5 minutes is primary；Until when cell voltage reaches stable, start battery success；
By using intermittent cyclic method of testing (Fed-batch Cycle Test Method) measured power density.Respectively 1000,
500, a complete MFC intermittent cycle is recorded under 250,200,100,50,25 Ohmic resistances respectively and reaches maximum stabilization
Voltage.
Embodiment 1
As shown in Figure 1, anode is made of positive wire titanium silk 12, graphene modified layer 3, electrode of the substrate black lead brush 4；
Pretreating graphite brush and carbon paper is prepared according to the following steps:
In the hydrogen peroxide solution for being 10wt% as mass fraction by black lead brush and carbon paper, water-bath is boiled 2 hours at 90 DEG C,
Then with deionized water, water-bath is boiled 2 hours at 90 DEG C, then is dried with baking oven.
The preparation of anode electrode:
(1) black lead brush is made into diameter is 3cm, the cylindrical graphite brush sample of a length of 5cm；
(2) modification of black lead brush: black lead brush is modified with the graphene oxide of 5mg/ml, concrete operation method are as follows:
The graphene oxide for weighing 250mg, is dissolved in the deionized water of 50ml, first stirs 30 minutes, then 30 minutes ultrasonic, then
Stirring 30 minutes, obtains graphene oxide dispersion liquid；By above-mentioned graphene oxide dispersion 30ml down to the centrifuge tube of 50ml
In, black lead brush is placed in centrifuge tube, lid is screwed on, centrifuge tube is put into supersonic wave cleaning machine ultrasonic treatment 1h, 60 DEG C in baking oven
Aging for 24 hours, places into and freezes 1h in liquid nitrogen, then freeze-drying process 3 days under vacuum conditions, obtains 3D graphene oxide
Aeroge is simultaneously deposited on black lead brush；Extra aeroge is struck off, then obtains 3D graphene oxide aeroge-black lead brush electricity
Pole.
The preparation of capacitance electrode:
As shown in Figure 1, capacitance electrode is by capacitance electrode conducting wire titanium silk 12, super capacitor material decorative layer 5, electrode of the substrate
6 compositions；
The method of modifying of carbon paper are as follows: take 8ml deionized water, add 1g polyvinyl alcohol, stirred strongly under the conditions of 85 DEG C.Together
When, 1g lithium chloride, which is dissolved, in the deionized water of 2ml prepares lithium chloride solution；After polyvinyl alcohol is completely dissolved, by lithium chloride
Solution pours into, and is stirred for 30min and waits for that it is completely dissolved and mixes completely, obtains colloidal electrolyte.
Obtained colloidal electrolyte is evenly coated on carbon paper, and connects titanium silk and makees conducting wire.
The preparation of cathode electrode:
Cathode is unmodified graphite felt, pretreated method: the dioxygen for being 10wt% as mass fraction by graphite felt
In aqueous solution, water-bath is boiled 2 hours at 90 DEG C, and then with isometric deionized water, water-bath is boiled 2 hours at 90 DEG C, then with dry
Case drying；
Pretreated graphite felt is cut into the square dice of 4 × 4cm, is put on titanium silk.
Device assembling:
(a) the titanium silk on modified anode is pierced by from anode casing aperture by interior outward, modified anode plane and anode case
Body plate plane is parallel；
(b) titanium silk and anode casing aperture are glued with AB glue, placing 5 minutes makes its solidification.
It will be packed into capacitor room, cathode chamber by (a) (b) method by pretreated capacitance electrode, cathode, then by ion exchange
Membrane pressure is in capacitor room, cathode room housing, and then electricity consumption room shell fixes cathode shell, amberplex, then with separately
One amberplex is pressed in capacitor room housing, is fixed capacitor room housing, amberplex with anode chamber, is finally screwed on
Screw nut.
Fig. 1 is the apparatus structure schematic diagram obtained using three electrode storage biological powers, including filling opening 1, anode chamber
Shell 2, graphene oxide decorative layer 3, black lead brush base electrode 4, polyvinyl alcohol decorative layer 5, carbon paper substrate electrode 6, graphite felt
Base electrode 7, capacitor room housing 8, cathode room housing 9, external resistance 10, switch 11, conducting wire titanium silk 12, amberplex 13.
After the completion of battery assembly, the Shewanella liquid of 10ml is added in anolyte, 1ml concentration is the cream of 800mmol/L
Acid sodium solution, then full with the phosphate buffer filling of pH=8, capacitor room directly uses the phosphate buffer of pH=8 to fill full, cathode
The room potassium ferricyanide (50 mmolL-1) make electron acceptor pH=8 phosphate buffer filling it is full.Accessing resistance is 250 ohm
Circuit in, the situation of change of recording voltage.
The formula of the phosphate buffer of pH=8 is (g/L) disodium hydrogen phosphate dodecahydrate: 67.84；Two hypophosphite monohydrate dihydros
Sodium: 1.65；Sodium chloride: 11.76；Ammonium chloride: 0.5；Potassium chloride: 0.2.Wherein, need to be added the mineral of 10ml in every liter of solution
Matter is with vitamin.
Embodiment 2
Present embodiment does not have to three-electrode system unlike the first embodiment, but only uses bipolar electrode body as shown in Figure 2
System, including filling opening 1, anode room housing 2, graphene oxide decorative layer 3, black lead brush base electrode 4, graphite felt base electrode 7,
Amberplex 8, cathode room housing 9, titanium silk 12.
Present embodiment does not need capacitor room, and concrete operation method is: modifying graphene oxide is passed through in embodiment 1
Black lead brush and the pretreated carbon felt of process are handed over according to the loading of (a) (b) method anode chamber, cathode chamber in embodiment 1, then by ion
Membrane pressure is changed in cathode room housing, cathode room housing, amberplex are fixed with anode chamber, finally screw on screw nut.
After the completion of battery assembly, the Shewanella liquid of 10ml is added in anolyte, 1ml concentration is the cream of 800mmol/L
Acid sodium solution, then full with the phosphate buffer filling of pH=8, the cathode chamber potassium ferricyanide (50 mmolL-1) make electron acceptor
PH=8 phosphate buffer filling it is full.It accesses in the circuit that resistance is 250 ohm, the situation of change of recording voltage.
Electricity under different running method under the conditions of the different battery maximum power densities that Fig. 3 obtains for embodiment 1 and embodiment 2
The situation of change of pressure, from the figure 3, it may be seen that the voltage of three-electrode battery is higher than the voltage of dual electrode cell.
Embodiment 3
The resistance that battery in Examples 1 and 2 is connected to 1000 Ω in external circuit connects data collector and is acquired
Data, setting acquisition data break are that acquisition in 5 minutes is primary.Until when cell voltage reaches stable, start battery success.Pass through
Using intermittent cyclic method of testing (Fed-batch Cycle Test Method) measured power density.Respectively 2000,1000,
500, a complete MFC intermittent cycle is recorded under 250,100 Ohmic resistances respectively and reaches maximum burning voltage.By graphite
The maximum power density difference of the opposing cathode electrode projected area of the graphene oxide anode of olefinic oxide hydrosol preparation
For 0.04882mW/cm2、0.04482 mW/cm2.It is illustrated in figure 4 the power density curve graph of different batteries.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. utilizing the device of three electrode storage biological powers, it is characterised in that handed over including anode chamber, capacitor room, cathode chamber and ion
Film is changed, capacitor room is between anode chamber and cathode chamber, and anode chamber and capacitor room, cathode chamber and capacitor room are all by amberplex point
It separates, have ON-OFF control circuit between anode chamber and capacitor room, capacitor room and cathode chamber cut-offs road；Electrode in the capacitor room
Using capacitive electrode, the capacitive electrode is that have by modifying the production of super capacitor material in pretreated electrode of the substrate
The capacitive electrode of supercapacitive；Electrode in anode is preferable by modified biological compatibility in pretreated electrode of the substrate
Material be prepared, in the anode chamber be added electricity production bacterium and organic matter formed the anode chamber microbiological fuel cell MFC.
2. the device according to claim 1 using three electrode storage biological powers, which is characterized in that in the capacitor room
Phosphate buffer solution is added, keeps electronic equilibrium；If the electricity production bacterium in anode chamber is pure bacterium, the phosphoric acid of pH=8 is used in capacitor room
Buffer filling is full；If the electricity production bacterium in anode chamber is Mixed Microbes, filled in capacitor room with the phosphate buffer of pH=7 full.
3. the device according to claim 1 using three electrode storage biological powers, which is characterized in that in the cathode chamber
The catholyte of addition is the potassium ferricyanide aqueous solution or the aqueous solution for being passed through air that concentration is 50-100mmol/L；The pretreatment
Refer to and be placed in electrode of the substrate in the hydrogen peroxide solution that mass fraction is 10wt%, water-bath is boiled 2 hours at 90 DEG C, is then spent
Ionized water water-bath at 90 DEG C is boiled 2 hours, then is dried with baking oven.
4. the device according to claim 1 using three electrode storage biological powers, which is characterized in that described pretreated
The method that super capacitor material is modified in electrode of the substrate includes that Electrochemical Modification, chemical deposition, physical bond method or freezing are dry
Dry method；Wherein Electrochemical Modification includes constant potential plating, cyclic voltammetry plating, and chemical deposition is sol-gal process, physics
Mull technique is bonded including the use of polytetrafluoroethylene (PTFE) thermo-compression bonding or Nafion.
5. the device according to claim 1 using three electrode storage biological powers, which is characterized in that described pretreated
The method of modified biological compatibility material includes Electrochemical Modification, chemical deposition, physical bond method or freezing in electrode of the substrate
Seasoning；Wherein Electrochemical Modification includes constant potential plating, cyclic voltammetry plating, and chemical deposition is sol-gal process, object
Mull technique is managed to bond including the use of polytetrafluoroethylene (PTFE) thermo-compression bonding or Nafion.
6. the device according to claim 1 using three electrode storage biological powers, which is characterized in that the electrode of the substrate
Including carbon cloth, graphite felt, carbon felt, carbon paper, stainless (steel) wire, nickel foam, stainless steel brush, black lead brush, plant fiber brush or sponge.
7. the device according to claim 1 using three electrode storage biological powers, which is characterized in that the super capacitor
Material includes one or more of electric double layer capacitance electrode material and fake capacitance electrode material.
8. the device according to claim 7 using three electrode storage biological powers, which is characterized in that the electric double layer electricity
Hold electrode material, to utilize material large specific surface area itself, in the material of electrode electrolyte interface stored charge, including activity
Carbon, mesoporous carbon, graphene and its oxide or carbon nanotube；The fake capacitance electrode material is quickly high by material itself
Spend the material that reversible faraday's reaction realizes storage, including ruthenic oxide, manganese dioxide, ferriferous oxide, polypyrrole, polyphenyl
Amine, polyacetylene, polyvinyl alcohol or poly- polyphenol.
9. the device according to claim 1 using three electrode storage biological powers, which is characterized in that the electricity production bacterium
Including one or more of Shewanella, ground bacillus and Escherichia coli with electricity generation ability, the organic matter includes lactic acid, second
One or more of acid, glucose, citric acid and their corresponding salt.
10. utilizing the method for device storage biological power described in claim 1, which is characterized in that in anode chamber and capacitor room
Between connected with the material of good conductivity, connected between capacitor room and cathode chamber with the material of good conductivity, and with switching
The connection of control circuit is gone, the material of the good conductivity includes titanium silk or iron wire；In the charging stage, switch is disconnected, anode chamber
In stored on the capacitance electrode that is transmitted in capacitor room by external circuit of the electronics that generates of the electricity production bacterium that is attached on anode；
In discharge regime, switch connection, the electronics stored on the capacitance electrode of full electricity is quickly transmitted on cathode electrode by external circuit,
Electron acceptor in cathode obtains electronics, to realize the raising of the power density of battery output.
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| CN106745679A (en) * | 2017-02-09 | 2017-05-31 | 广东工业大学 | A kind of appositional pattern phycomycete Bioelectrochemical device |
| CN108339846A (en) * | 2018-01-18 | 2018-07-31 | 青岛科技大学 | Fuel cell handles the system and method that organic wastewater synchronizes repairing heavy metal in soil |
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| CN104157884A (en) * | 2014-07-30 | 2014-11-19 | 华南理工大学 | Three-dimensional electrode brush modified by 3D graphene oxide aerogel and preparation method and application of three-dimensional electrode brush |
| CN105140528A (en) * | 2015-07-31 | 2015-12-09 | 华南理工大学 | Self-doped microbial fuel cell cathode material and preparation method thereof |
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