CN108428903A - A kind of charcoal catalyst, the preparation method and microbiological fuel cell of Catalytic Layer - Google Patents
A kind of charcoal catalyst, the preparation method and microbiological fuel cell of Catalytic Layer Download PDFInfo
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- CN108428903A CN108428903A CN201810305338.6A CN201810305338A CN108428903A CN 108428903 A CN108428903 A CN 108428903A CN 201810305338 A CN201810305338 A CN 201810305338A CN 108428903 A CN108428903 A CN 108428903A
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- charcoal catalyst
- fuel cell
- carbon cloth
- preparation
- catalytic layer
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8652—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites as mixture
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- 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
-
- 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 a kind of charcoal catalyst, the preparation methods and microbiological fuel cell of Catalytic Layer.It is related to bioelectrochemistry field.The material of the catalyst is charcoal, and the preparation method of Catalytic Layer is to obtain microbiological fuel cell load by the method that charcoal material is loaded to carbon cloth to have the cathode of charcoal carbon cloth.The microbiological fuel cell prepared by this method, the raw material of its charcoal catalyst is compared with noble metal platinum and its alloy material, pretreatment is easier to, is cheap, deriving from a wealth of sources, the load of preparation has the cathode of charcoal catalyst to have relatively stable output voltage, stronger electric conductivity, relatively stable power density, the reaction process for being conducive to redox reaction, and cost is more cheap in microbiological fuel cell, power density is higher, operation is widely used in including the fields such as microbiological fuel cell, lithium battery or ultracapacitor compared with stabilization energy.
Description
Technical field
The present invention relates to bioelectrochemistry fields, more particularly relate to a kind of charcoal catalyst, the preparation method of Catalytic Layer
And microbiological fuel cell.
Background technology
For a long time, sewage disposal neck is in as the aerobic treatment technology of representative using activated sludge process and biomembrane process
The application of the principal status of public economy in domain, traditional anaerobic treatment process is increased, but is limited primarily to the processing of high-concentration waste water.Although
Prior art is being continuously improved, and new process form is continuing to bring out, but has no substantive breakthroughs in processing theory, can not be put
The de- frame that sewage organic matter is removed in a manner of high energy consumption.And now energy shortages becomes global project, more becomes me
The restraining factors that state's economic society further develops seek the treatment technology that good in economic efficiency, resource consumption is few, environmental pollution is small
It is extremely urgent.This not only needs to continue to optimize on technological layer, is reformed with greater need in processing theory.
Microbiological fuel cell (Microbial Fuel Cell, MFC) be it is a kind of using bacterium will be chemical by biomass
The new equipment of electric energy can be converted into.Compared with other fuel cells, microbiological fuel cell has the characteristics that：1) material
It derives from a wealth of sources.Fuel can be done using a variety of organic and inorganic substances, and general fuel cell can not be when；2) operating condition temperature
With.Usually work in room temperature, normal pressure and close neutral operating environment.This makes battery maintenance cost reduction, safety
Increase；3) energy utilization high efficiency.Can be using waste as raw material, production capacity power generation makes waste turn waste into wealth.Microorganism
Fuel cell is the important component of Co-generation in future, and energy utilization rate is made to greatly improve.
However, the factors such as selection of performance, proton exchange membrane caused by the selection of the material of electrode influence, biology
The potential advantage of fuel cell itself make one it is good to its development prospect, but to be used as power supply to be applied to actual production and life
Work is also remoter.The main reason is that output power density far can not meet actual requirement.Experiment is found, by cathode
Supported catalyst carbon cloth can increase substantially microbiological fuel cell electricity production power, significantly improve the property of microbiological fuel cell
Energy.Charcoal is selected as the advantages of catalyst is cheap, derives from a wealth of sources, is disposable, therefore, is loaded as catalyst using charcoal
To carbon cloth to improve its electricity generation performance.
Invention content
The embodiment of the present invention provides a kind of charcoal catalyst, and the preparation method and fuel cell of Catalytic Layer are existing to solve
Have in technology that there are lower output power in the utilization of microbiological fuel cell and higher costs of material.
The embodiment of the present invention provides a kind of preparation method of Catalytic Layer, including：
The sawdust after treating of wood is obtained, the sawdust is filtered；
The filtered sawdust is placed into tube furnace, nitrogen is filled with into the tube furnace, according to set temperature
And setting time carries out calcination, obtains charcoal catalyst, wherein
The set temperature is respectively：650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C and 1050 DEG C, the setting time is
120min。
Preferably, before carrying out calcination according to set temperature and setting time, first flow velocity is filled with into the tube furnace
For 200 nitrogen, and the time for being filled with the nitrogen that flow velocity is 200 is 600s.
Preferably, when the progress calcination according to set temperature, the temperature of the tube furnace is per minute to increase 8~10 DEG C.
Preferably, the setting time is 2h.
The embodiment of the present invention also provides a kind of preparation method of Catalytic Layer, including：
By charcoal catalyst and acetylene black according to mass ratio 1:4 are placed into proportion container, into the proportion container by
Drop addition is 1 with the charcoal catalyst mass ratio:11~12 deionized water；
It is 1 to be added according to this into the proportion container with the charcoal catalyst mass ratio：31~32：26~17 concentration
It for 5% Nafion solution and pure aqueous isopropanol and stirs, obtains suspension；
The suspension is coated on carbon cloth, coating of the thickness between 0.3~0.5mm is formed on the carbon cloth, by band
After at least drying for 24 hours of the cated carbon cloth, Catalytic Layer is obtained.
The embodiment of the present invention also provides a kind of microbiological fuel cell, including diffusion layer, carbon based layer, and carbon cloth layer is wanted with right
Seek the Catalytic Layer described in 5.
Preferably, the thickness of the Catalytic Layer is 0.4~0.5mm.
The embodiment of the present invention provides a kind of charcoal catalyst, the preparation method and microbiological fuel cell of Catalytic Layer, the hair
The charcoal catalyst of bright middle offer has raw material sources extensive, cheap, tractable advantage, furthermore, the charcoal of preparation is urged
There is agent cathode higher voltage, the power density that preferable electric conductivity and original text are stablized to be conducive to redox reaction
Progress；Further, the microorganism fuel cell cathode prepared by this method, which loads charcoal catalyst, has good lead
Electrically, the advantages such as voltage, higher power density stablized, can be widely used in include microbiological fuel cell, lithium battery or
Ultracapacitor.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram that microbiological fuel cell provided in an embodiment of the present invention loads charcoal catalyst cathode；
Fig. 2 is the charcoal provided in an embodiment of the present invention based on by 650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C and 1050 DEG C
The voltage pattern of the microbiological fuel cell battery of catalyst；
Fig. 3~Fig. 7 is provided in an embodiment of the present invention based on by 650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C and 1050 DEG C
The microbiological fuel cell power density diagram of charcoal catalyst.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention provides a kind of preparation method of charcoal catalyst, the preparation method of the catalyst include mainly with
Lower step：
Step 101, the sawdust after treating of wood is obtained, the sawdust is filtered；
Step 102, the filtered sawdust is placed into tube furnace, nitrogen is filled with into the tube furnace, according to
Set temperature and setting time carry out calcination, obtain charcoal catalyst, wherein the set temperature is respectively：650 DEG C, 750
DEG C, 850 DEG C, 950 DEG C and 1050 DEG C, the setting time is 120min.
Specifically, in a step 101, it before the sawdust after obtaining treating of wood, needs that timber is first placed into the sun
Lower drying 5 days, then crushes the timber after drying, grinding time is between 10~15min.
Further, the sawdust of crushing is filtered, in filtering, primarily to the bigger sawdust of grain size is gone
It removes.
In a step 102, filtered sawdust is placed into tube furnace and carries out calcination, in embodiments of the present invention, then
Before sawdust is placed into tube furnace calcination, need first to be filled with nitrogen into tube furnace, and the flow of nitrogen is 200, inflation
Time was between 10 minutes or so.
Further, it when the tube furnace for being filled with nitrogen carries out calcination according to set temperature, needs to be arranged in tube furnace
Temperature increment speed.In embodiments of the present invention, it is ensured that the flow velocity of the nitrogen in tube furnace burns under 60~80, and
The raising per minute of tubular type furnace temperature is between 8~10 DEG C, it should be not more than 10 DEG C.
It should be noted that the set temperature of tube furnace is respectively：650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C, 1050 DEG C, and
The time of each calcination is 2 hours.
Further, material is taken out when tube furnace drops to room temperature, obtains charcoal catalyst.It in practical applications, can be with
Obtained charcoal catalyst is placed on drying box, prevent charcoal catalyst cause indoors because of humidity in environment structure or
Ingredient is destroyed.
A kind of preparation method for charcoal that this clearly demarcated embodiment provides, charcoal catalyst can be obtained by this method, should
Catalyst has raw material sources extensive, cheap, tractable advantage.
The embodiment of the present invention also provides a kind of preparation method of Catalytic Layer, which mainly includes the following steps that：
Step 201, it is about 1 according to mass ratio:Acetylene black and charcoal catalyst are placed into proportion container by 4 size,
0.5mL deionized waters are added dropwise into the proportion container；
Step 202, be added according to this into the proportion container a concentration of 5% Nafion1.5mL solution and 1.5mL it is pure
Aqueous isopropanol simultaneously stirs, and obtains suspension；
Step 203, the suspension is coated on carbon cloth, forms painting of the thickness between 0.3~0.5mm on the carbon cloth
Layer obtains Catalytic Layer after the carbon cloth of coating at least drying for 24 hours.
Specifically, in step 201, it is 1 according to mass ratio:4, acetylene black and charcoal catalyst are weighed respectively, by acetylene
It is black to be placed on pan paper, then the charcoal catalyst weighed is placed into pan paper, and by acetylene black and charcoal catalyst
It is uniformly mixed.Further, deionized water is instilled into the proportion container that placed acetylene black and charcoal catalyst, needs to illustrate
, when instilling deionized water to proportion container, need drop by drop to instill, and when instilling deionized water, no
It needs to be stirred.
In step 202, it is 1 first to be added into proportion container with charcoal catalyst quality：A concentration of the 5% of 31~32
Nafion solution, then it is 1 to add into proportion container with charcoal catalyst quality：26~27 pure aqueous isopropanol.So
The a variety of solution and pulvis that are put into proportion container are sealed afterwards, on being placed into vibrator, are obtained by vibrator proportion container
Centrifugal force stirring is obtained, so that the solution and pulvis in proportion container are sufficiently mixed, to obtain uniformly mixed suspension.
It should be noted that in embodiments of the present invention, when on vibrator, the rotating speed of vibrator is not more than proportion container
250 revolution per seconds.
In embodiments of the present invention, the density of a concentration of 5% Nafion solution selected is 0.92~0.94g/ml, phase
The density of Ying Di, aqueous isopropanol are 0.785g/ml.Above-mentioned acetylene black, charcoal catalyst, deionized water, a concentration of 5%
The unit of the mass ratio of Nafion solution and aqueous isopropanol is gram.
In step 203, the suspension that step 202 obtains is coated on carbon cloth, forms thickness on carbon cloth between 0.3
The coating of~0.5mm, it should be noted that when on suspension is applied to carbon cloth, it should avoid coating suspension as possible
To the other side of carbon cloth.
Further, it is coated on carbon cloth after certain thickness suspension, needs to be dried, under normal circumstances, needed
Carbon cloth is dried by hair-dryer.In embodiments of the present invention, due to being coated with suspension on carbon cloth, and in order to prevent
Leading to carbon cloth and suspension due to high temperature in the drying process, its is destructurized, it is preferable that needs hair-dryer is arranged and adopt
It is blown with cold wind, or when being blown using hot wind, it should the distance between carbon cloth and hair-dryer air outlet be kept to be more than 70~100cm
Between, and it is additionally provided with partition board between carbon cloth and hair-dryer air outlet, it, can be to avoid high temperature by the partition board and setting distance
Destroy the structure of carbon cloth and suspension.
In practical applications, the carbon cloth coated with suspension will at least be dried for 24 hours, after carbon cloth drying for 24 hours, can obtain
To Catalytic Layer, and the Catalytic Layer is charcoal Catalytic Layer.
The embodiment of the present invention provides a kind of preparation method of Catalytic Layer, wherein the formula of Catalytic Layer may include a variety of, base
In above-mentioned difference, individually below by taking embodiment one to example IV as an example, specifically to introduce the corresponding preparation of different Catalytic Layers
Method.
Specifically, in step 201, it is 1 according to mass ratio:4, acetylene black and charcoal catalyst are weighed respectively, by acetylene
It is black to be placed on pan paper, then the charcoal catalyst weighed is placed into pan paper, and by acetylene black and charcoal catalyst
It is uniformly mixed.Further, deionized water is instilled into the proportion container that placed acetylene black and charcoal catalyst, needs to illustrate
, when instilling deionized water to proportion container, need drop by drop to instill, and when instilling deionized water, no
It needs to be stirred.
In step 202, it is 1 first to be added into proportion container with charcoal catalyst quality：A concentration of the 5% of 31~32
Nafion solution, then it is 1 to add into proportion container with charcoal catalyst quality：26~27 pure aqueous isopropanol.So
The a variety of solution and pulvis that are put into proportion container are sealed afterwards, on being placed into vibrator, are obtained by vibrator proportion container
Centrifugal force stirring is obtained, so that the solution and pulvis in proportion container are sufficiently mixed, to obtain uniformly mixed suspension.
It should be noted that in embodiments of the present invention, when on vibrator, the rotating speed of vibrator is not more than proportion container
250 revolution per seconds.
In embodiments of the present invention, the density of a concentration of 5% Nafion solution selected is 0.92~0.94g/ml, phase
The density of Ying Di, aqueous isopropanol are 0.785g/ml.Above-mentioned acetylene black, charcoal catalyst, deionized water, a concentration of 5%
The unit of the mass ratio of Nafion solution and aqueous isopropanol is gram.
In step 203, the suspension that step 202 obtains is coated on carbon cloth, forms thickness on carbon cloth between 0.3
The coating of~0.5mm, it should be noted that when on suspension is applied to carbon cloth, it should avoid coating suspension as possible
To the other side of carbon cloth.
Further, it is coated on carbon cloth after certain thickness suspension, needs to be dried, under normal circumstances, needed
Carbon cloth is dried by hair-dryer.In embodiments of the present invention, due to being coated with suspension on carbon cloth, and in order to prevent
Leading to carbon cloth and suspension due to high temperature in the drying process, its is destructurized, it is preferable that needs hair-dryer is arranged and adopt
It is blown with cold wind, or when being blown using hot wind, it should the distance between carbon cloth and hair-dryer air outlet be kept to be more than 70~100cm
Between, and it is additionally provided with partition board between carbon cloth and hair-dryer air outlet, it, can be to avoid high temperature by the partition board and setting distance
Destroy the structure of carbon cloth and suspension.
In practical applications, the carbon cloth coated with suspension will at least be dried for 24 hours, after carbon cloth drying for 24 hours, can obtain
To Catalytic Layer, and the Catalytic Layer is charcoal Catalytic Layer.
The embodiment of the present invention provides a kind of preparation method of Catalytic Layer, wherein the formula of Catalytic Layer may include a variety of, base
In above-mentioned difference, individually below by taking embodiment one to example IV as an example, specifically to introduce the corresponding preparation of different Catalytic Layers
Method.
Embodiment one
By charcoal catalyst and acetylene black according to mass ratio 1:4 are placed into proportion container, add dropwise into proportion container
It is 1 to add with charcoal catalyst mass ratio:11 deionized water；
It is 1 to be added according to this into proportion container with charcoal catalyst mass ratio：31：26 a concentration of 5% Nafion is molten
Liquid and pure aqueous isopropanol simultaneously stir, and obtain suspension；
Suspension is applied to coating of the thickness between 0.3mm is formed on carbon cloth, on carbon cloth, extremely by the carbon cloth of coating
After drying 25h less, Catalytic Layer is obtained.
Embodiment two
By charcoal catalyst and acetylene black according to mass ratio 1:4 are placed into proportion container, add dropwise into proportion container
It is 1 to add with charcoal catalyst mass ratio:11~12 deionized water；
It is 1 to be added according to this into proportion container with charcoal catalyst mass ratio：32：17 a concentration of 5% Nafion is molten
Liquid and pure aqueous isopropanol simultaneously stir, and obtain suspension；
Suspension is applied to coating of the thickness between 0.5mm is formed on carbon cloth, on carbon cloth, extremely by the carbon cloth of coating
After few drying for 24 hours, Catalytic Layer is obtained.
Embodiment three
By charcoal catalyst and acetylene black according to mass ratio 1:4 are placed into proportion container, add dropwise into proportion container
It is 1 to add with charcoal catalyst mass ratio:11.5 deionized water；
It is 1 to be added according to this into proportion container with charcoal catalyst mass ratio：31.5：A concentration of the 5% of 26.5
Nafion solution and pure aqueous isopropanol simultaneously stir, and obtain suspension；
Suspension is applied to coating of the thickness between 0.4mm is formed on carbon cloth, on carbon cloth, extremely by the carbon cloth of coating
After few drying for 24 hours, Catalytic Layer is obtained.
Example IV
The charcoal catalyst of 0.0442g and 0.1767g acetylene blacks are placed into proportion container, dropwise into proportion container
Add 0.5ml deionized waters；
Into proportion container according to this be added and 1.5ml a concentration of 5% Nafion solution and the pure aqueous isopropanols of 1.5ml
And stir, obtain suspension；
Suspension is applied to coating of the thickness between 0.3mm is formed on carbon cloth, on carbon cloth, extremely by the carbon cloth of coating
After few drying for 24 hours, Catalytic Layer is obtained.
The embodiment of the present invention also provides a kind of microbiological fuel cell, and Fig. 1 fires for microorganism provided in an embodiment of the present invention
The structural schematic diagram of cell load charcoal catalyst cathode is expected, as shown in Figure 1, the microbiological fuel cell includes diffusion
Layer, carbon based layer 1-3, the Catalytic Layer 1-1 that carbon cloth layer 1-2 and above-described embodiment include.
The thickness of Catalytic Layer provided in an embodiment of the present invention is between 0.4~0.5mm.
In practical applications, the charcoal catalyst that will be obtained by 650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C, 1050 DEG C of calcinations
It is applied in Catalytic Layer, and after Catalytic Layer is applied in microbiological fuel cell, tests the microorganism combustion of different Catalytic Layers
Expect battery output voltage, Fig. 2 be it is provided in an embodiment of the present invention based on by 650 DEG C, 750 DEG C, 850 DEG C, 950 DEG C, 1050
The voltage pattern of the microbiological fuel cell battery of DEG C charcoal catalyst.As shown in Fig. 2, maximum output voltage be respectively 155mV,
101mV, 138mV, 83mV and 205mV, the microbiological fuel cell of the charcoal catalyst load after 1050 DEG C of Temperature Treatments
Microbiological fuel cell where cathode can reach larger output voltage；
The power density for testing charcoal catalyst microbiological fuel cell, based on by 155mV, 101mV, 138mV, 83mV
With the microbiological fuel cell power density diagrams of 205mV charcoal catalysts respectively as shown in Fig. 3~Fig. 7, peak power output point
It Wei not 38.29mW/m2、32.43mW/m2、31.57mW/m2、18.70mW/m2And 57.20mW/m2.And with 12%
La0.7Sr0.3CoO3/ PANI is that apply the power density generated in microbiological fuel cell be 44.42mW/m to catalyst2(make phase
Should adjust), this will be well below power density caused by microbiological fuel cell provided in an embodiment of the present invention.This shows this
The microbiological fuel cell that inventive embodiments provide can replace 12%La0.7Sr0.3CoO3/ PANI is supported on the moon as catalyst
Pole is to be applied in microbiological fuel cell.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of preparation method of charcoal catalyst, which is characterized in that including：
The sawdust after treating of wood is obtained, the sawdust is filtered；
The filtered sawdust is placed into tube furnace, nitrogen is filled with into the tube furnace, according to set temperature and
Setting time carries out calcination, obtains charcoal catalyst, wherein the set temperature is respectively：650 DEG C, 750 DEG C, 850 DEG C, 950
DEG C and 1050 DEG C, the setting time be 120min.
2. preparation method as described in claim 1, which is characterized in that carrying out calcination according to set temperature and setting time
Before, the nitrogen that flow velocity is 200 is first filled with into the tube furnace, and the time for being filled with the nitrogen that flow velocity is 200 is 600s.
3. preparation method as described in claim 1, which is characterized in that when the progress calcination according to set temperature, the pipe
The temperature of formula stove is per minute to increase 8~10 DEG C.
4. preparation method as described in claim 1, which is characterized in that the setting time is 2h.
5. a kind of preparation method of Catalytic Layer, which is characterized in that including：
By charcoal catalyst and acetylene black according to mass ratio 1:4 are placed into proportion container, add dropwise into the proportion container
It is 1 to add with the charcoal catalyst mass ratio:11~12 deionized water；
It is 1 to be added according to this into the proportion container with the charcoal catalyst mass ratio：31~32：26~17 it is a concentration of
5% Nafion solution and pure aqueous isopropanol simultaneously stir, and obtain suspension；
The suspension is coated on carbon cloth, forms coating of the thickness between 0.3~0.5mm on the carbon cloth, will carry and apply
After at least drying for 24 hours of the carbon cloth of layer, Catalytic Layer is obtained.
6. a kind of microbiological fuel cell, which is characterized in that including diffusion layer, carbon based layer, carbon cloth layer with described in claim 5
Catalytic Layer.
7. battery as claimed in claim 6, which is characterized in that the thickness of the Catalytic Layer is 0.4~0.5mm.
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| CN201810305338.6A CN108428903A (en) | 2018-04-04 | 2018-04-04 | A kind of charcoal catalyst, the preparation method and microbiological fuel cell of Catalytic Layer |
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| CN201810305338.6A CN108428903A (en) | 2018-04-04 | 2018-04-04 | A kind of charcoal catalyst, the preparation method and microbiological fuel cell of Catalytic Layer |
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| CN109103464A (en) * | 2018-08-30 | 2018-12-28 | 广州大学 | A kind of preparation method of Catalytic Layer, Catalytic Layer and microbiological fuel cell |
| CN110165234A (en) * | 2019-05-22 | 2019-08-23 | 广州大学 | A kind of corncob electrode material and its preparation method and application |
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| CN102290589A (en) * | 2011-07-19 | 2011-12-21 | 中国科学院上海硅酸盐研究所 | Cathode-supported direct carbon fuel cell |
| CN104241662A (en) * | 2014-08-27 | 2014-12-24 | 中国科学院广州能源研究所 | Preparation method of charcoal for cathode catalyst of microbial fuel cell |
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| CN1713424A (en) * | 2004-06-23 | 2005-12-28 | 比亚迪股份有限公司 | Electrode production of fuel battery membrane with proton exchange membrane |
| CN101662032A (en) * | 2009-09-22 | 2010-03-03 | 中国科学院上海微***与信息技术研究所 | Cathode structure of membrane electrode assembly of direct alcohol fuel cell and manufacturing method |
| CN102290589A (en) * | 2011-07-19 | 2011-12-21 | 中国科学院上海硅酸盐研究所 | Cathode-supported direct carbon fuel cell |
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| CN109103464A (en) * | 2018-08-30 | 2018-12-28 | 广州大学 | A kind of preparation method of Catalytic Layer, Catalytic Layer and microbiological fuel cell |
| CN110165234A (en) * | 2019-05-22 | 2019-08-23 | 广州大学 | A kind of corncob electrode material and its preparation method and application |
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