CN107768691A - A kind of carbon carries the preparation method of Mn oxide air electrode VPO catalysts - Google Patents
A kind of carbon carries the preparation method of Mn oxide air electrode VPO catalysts Download PDFInfo
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- CN107768691A CN107768691A CN201610739375.9A CN201610739375A CN107768691A CN 107768691 A CN107768691 A CN 107768691A CN 201610739375 A CN201610739375 A CN 201610739375A CN 107768691 A CN107768691 A CN 107768691A
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- carbon
- air electrode
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- vpo catalysts
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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
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
- H01M4/9083—Catalytic material supported on carriers, e.g. powder carriers on carbon or graphite
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- 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
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inert Electrodes (AREA)
Abstract
The present invention relates to the preparation method that a kind of carbon carries Mn oxide air electrode VPO catalysts, comprise the following steps：Acetic acid manganese solution is added in carbon material, make manganese acetate that there is certain mass ratio with carbon material, surfactant is added in step 1, then ultrasonic disperse, drying, solid after drying is transferred in crucible, is put into high temperature furnace high temperature processing natural cooling, the as carbon carries Mn oxide air electrode VPO catalysts after obtaining black powder grinding；Synthesis technique of the present invention is simple, cost is cheap, environment-friendly, superior performance, is advantageous to the popularization of metal fuel battery and air cell technology, improves the performance of air cell.
Description
Technical field
The present invention relates to a kind of metal fuel battery and air battery cathode catalyst, more particularly to a kind of carbon carries manganese oxidation
The preparation method of thing air electrode VPO catalysts.
Background technology
With the increasingly depleted of the energy, the increasingly sharp increase of environmental protection pressure, research of the people to new energy particularly battery is got over
More to pay attention to.Air cell receives everybody especially blue or green with many advantages, such as energy density is high, service life is long, safety and environmental protection
Look at, but the air electrode particularly cost of air electrode VPO catalysts, performance govern its development, thus develop it is a kind of it is low into
The air electrode VPO catalysts of this environment-friendly and high-performance have great importance.The present invention is with cheap, pollution-free, aboundresources
Mn oxide as air electrode VPO catalysts, there is provided a kind of carbon carries the preparation side of Mn oxide air electrode VPO catalysts
Method, the noble metal catalysts such as conventional precious metal platinum, silver are instead of, reduce cost, it is environmentally friendly, have a far reaching influence.
Traditional platinum, silver-colored noble metal catalyst, price is sufficiently expensive, and by taking 40% platinum carbon catalyst as an example, price is up to
180 yuan/g, air electrode is fabricated to 1mg/cm2To calculate, every square metre of air electrode is that the price of platinum carbon catalyst is just high
Up to 4500 yuan, and complex manufacturing technology, seriously constrain the development of metal fuel battery, air cell.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art to exist, there is provided a kind of simple carbon of synthesis technique carries manganese oxidation
The preparation method of thing air electrode VPO catalysts.
Realizing the technical scheme of the object of the invention is：A kind of carbon carries the preparation side of Mn oxide air electrode VPO catalysts
Method, comprise the following steps：
1) acetic acid manganese solution is added in carbon material, makes manganese acetate that there is certain mass ratio with carbon material,
2) surfactant is added in the solution of step 1, ultrasonic disperse, is dried,
3) solid after drying is transferred in crucible, is put into the processing of Muffle furnace high temperature,
4) natural cooling, the as carbon carries manganese oxide catalyst after obtaining black powder grinding.
In step 1) described in above-mentioned technical proposal, carbon material include XC-72 carbon blacks, activated carbon, acetylene black any one or
Two kinds and the mixing of any of the above ratio.Carbon material will first use ethanol, ether, acetone any one or two kinds and any of the above ratio
The organic solvent wetting of mixing.Acetic acid manganese solution used is 5%~50% manganese acetate aqueous solution or 5%~50% acetic acid
Manganese ethanol solution, control manganese acetate with carbon material mass ratio be 1: 5~5: 1.In the step 2), surfactant includes
Any one in SDBS, polyethylene glycol, CTAB or two kinds and the mixing of any of the above ratio, 1~4 hour of ultrasonic disperse.Dry
Dry to use baking oven or vacuum drying oven, temperature should be controlled at 60 DEG C~100 DEG C.In the step 3), high temperature furnace be Muffle furnace or
Person's atmosphere furnace, temperature are set in 300 DEG C~500 DEG C, 1~5 hour of high-temperature process.
After adopting the above technical scheme, the present invention has following positive effect：
(1) synthesis technique of the present invention is simple, cost is cheap, be advantageous to metal fuel battery and air cell technology it is general
And.
(2) present invention is pollution-free, environmentally friendly, meets the national policy of energy and environment harmony sustainable development.
(3) superior performance of the present invention, better than argentiferous, addition CNT and the catalyst for adding graphene, can match in excellence or beauty platinum
C catalyst.
Brief description of the drawings
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail, wherein
Fig. 1 is the schematic diagram that the present invention does XRD signs to material；
Fig. 2 is the schematic diagram that the present invention does HRTEM tests to material；
Fig. 3 is the schematic diagram that the present invention carries out discharge test under different current densities；
Embodiment
(embodiment 1)
Take 1g activated carbons to be placed in beaker, add absolute ethyl alcohol activated carbon complete wetting, add 10g50% acetic acid
Manganese solution adds polyethylene glycol 0.2g simultaneously, is ultrasonically treated 3h, 80 DEG C of drying of vacuum drying oven is then placed on, by the solid after drying
It is transferred in crucible, is placed in 450 DEG C of Muffle furnace high temperature processing 3h, natural cooling, the carbon is produced after grinding and carries Mn oxide
Catalyst.
(embodiment 2)
Take 2g acetylene blacks to be placed in beaker, add absolute ethyl alcohol, ether acetylene black complete wetting, add 10g50%
Acetic acid manganese solution add SDBS 0.1g simultaneously, be ultrasonically treated 2h, 70 DEG C of drying of vacuum drying oven be then placed on, after drying
Solid is transferred in crucible, is placed in 400 DEG C of Muffle furnace high temperature processing 4h, natural cooling, the carbon is produced after grinding and carries manganese oxygen
Compound catalyst.
(embodiment 3)
Take 1.5gXC-72 carbon blacks to be placed in beaker, add ether, acetone XC-72 carbon black complete wettings, add
20g25% acetic acid manganese solution adds each 0.2g of polyethylene glycol, CTAB simultaneously, is ultrasonically treated 4h, is then placed on vacuum drying oven 60
DEG C drying, the solid after drying is transferred in crucible, be placed in 300 DEG C Muffle furnace high temperature processing 5h, natural cooling, grinding
After produce the carbon carry manganese oxide catalyst.
See Fig. 1, the manganese monoxide for Emission in Cubic it is known that obtaining is confirmed by crystal formation, diffraction maximum is sharp and intensity is big
It is known that obtained manganese monoxide crystallinity is relatively good, crystal formation is than more complete.
See Fig. 2, it is clear that the lattice of manganese monoxide is perfectly clear neatly, illustrate the crystal formation life of manganese monoxide
Long ratio is more complete, is mutually confirmed with XRD test result.It can also be seen that lattice phase of the lattice of manganese monoxide with acetylene black
Mutually intersect and be connected in together, illustrate that manganese monoxide is grown in acetylene black, and adhere to than stronger.In summary, gained material
The carbon that material has reached in ideal carries the condition of manganese oxide catalyst.
Make air electrode and discharge test carried out under different current densities with aluminium anodes collocation, see Fig. 3,
It is as follows to contrast the specific discharge data of different catalysts：
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. a kind of carbon carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Comprise the following steps：
1) acetic acid manganese solution is added in carbon material, makes manganese acetate that there is mass ratio with carbon material；
2) surfactant, ultrasonic disperse, drying are added in solution in step 1；
3) solid after drying is transferred in crucible, is put into the processing of high temperature furnace high temperature；
4) natural cooling, the as carbon carries Mn oxide air electrode VPO catalysts after obtaining black powder grinding.
2. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 1), carbon material includes XC-72 carbon blacks, activated carbon, acetylene black any one or two or more arbitrary proportion
Mixing.
3. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 1), carbon material first will have with what ethanol, ether, acetone any one or two or more arbitrary proportion mixed
Solvent soaks.
4. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 1), the manganese acetate aqueous solution or 5%~50% manganese acetate ethanol that acetic acid manganese solution used is 5%~50% are molten
Liquid, manganese acetate is 1: 5~5: 1 with the mass ratio of carbon material in the acetic acid manganese solution.
5. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 2), surfactant includes any one or two or more any ratio in SDBS, polyethylene glycol, CTAB
Example mixing, 1~4 hour of ultrasonic disperse.
6. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 2), drying uses baking oven or vacuum drying oven, and temperature range is at 60 DEG C~100 DEG C.
7. carbon according to claim 1 carries the preparation method of Mn oxide air electrode VPO catalysts, it is characterised in that：Institute
State in step 3), high temperature furnace is Muffle furnace or atmosphere furnace, and temperature is set in 300 DEG C~500 DEG C, and high-temperature process is 1~5 small
When.
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| CN201610739375.9A CN107768691A (en) | 2016-08-22 | 2016-08-22 | A kind of carbon carries the preparation method of Mn oxide air electrode VPO catalysts |
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| CN201610739375.9A CN107768691A (en) | 2016-08-22 | 2016-08-22 | A kind of carbon carries the preparation method of Mn oxide air electrode VPO catalysts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345322A (en) * | 2022-01-13 | 2022-04-15 | 贵州民族大学 | Carbon-supported manganese oxide catalyst and preparation method thereof |
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Application publication date: 20180306 |