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Microbial fuel cell cathode catalyst CaFe1-XCuXO3 as well as preparation method and application thereof

A fuel cell cathode and microbial technology, applied in the field of bioelectrochemistry, can solve the problems of poor efficiency and stability, high cost, and low output power, and achieve the effects of stable output, low cost, and high power

Inactive Publication Date: 2021-01-19
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the development of microbial fuel cells is very early, due to the problems of microbial activity, electrode material performance, low output power and high cost, as well as the high cost, poor efficiency and stability of microbial fuel cells using Pt / C catalysts, The technology is still seen as a "new" energy technology with great development potential

Method used

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  • Microbial fuel cell cathode catalyst CaFe1-XCuXO3 as well as preparation method and application thereof
  • Microbial fuel cell cathode catalyst CaFe1-XCuXO3 as well as preparation method and application thereof
  • Microbial fuel cell cathode catalyst CaFe1-XCuXO3 as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present invention CaFe 0.9 Cu 0.1 o 3 An embodiment of the catalyst, the reactor of the microbial fuel cell described in this embodiment is as figure 1 As shown: No. 1 is marked as the plastic shell of the reactor, one side is open, and the rest are sealed; No. 2 is marked as the rubber plug of the liquid change port; No. 3 is marked as the anode carbon felt, soaked in the anolyte; No. 4 is marked Resistor (1000Ω) connecting the anode and cathode, the connecting wire is polished titanium wire; No. 5 is marked as a rubber gasket; No. 6 is marked as a PEM film; No. 7 is marked as a conductive metal coil connecting the resistance; No. 8 is marked as containing CaFe 0.9 Cu 0.1 o 3 The catalytic layer of the catalyst; No. 9 is marked as the carbon cloth cathode; No. 10 is marked as the carbon base layer.

[0041] Cathode Catalyst for Microbial Fuel Cells 0.9 Cu 0.1 o 3 , the preparation process is as follows:

[0042] (1) Calcium acetate monohydrate, ferric nit...

Embodiment 2

[0056] The structure of this embodiment and the preparation method of carbon cloth are exactly the same as those in Example 1, except that the catalyst preparation method is different, and its preparation method is as follows:

[0057] (1) Mix calcium acetate monohydrate, iron nitrate nonahydrate, ethylenediaminetetraacetic acid and citric acid, according to the ratio of the amount of substances: calcium acetate monohydrate: iron nitrate nonahydrate: ethylenediaminetetraacetic acid: citric acid =1:1:2:4, add deionized water and stir to obtain a mixed solution;

[0058] (2) Heating and stirring the mixed solution in step (1), the stirring rate is 400 rpm, the heating temperature is 95°C, ammonia water is added dropwise during the heating and stirring process, and the sol is obtained after 5 hours;

[0059] (3) Place the sol in step (2) in a tube furnace at 200°C and keep it warm for 7 hours to obtain a solid, which is ground into powder;

[0060] (4) Take the powder in step (3...

Embodiment 3

[0063] The structure of this embodiment and the preparation method of carbon cloth are exactly the same as those in Example 1, except that the catalyst preparation method is different, and its preparation method is as follows:

[0064] (1) Calcium acetate monohydrate, ferric nitrate nonahydrate, copper nitrate trihydrate, ethylenediaminetetraacetic acid and citric acid are mixed, and the ratio according to the amount of substances is: calcium acetate monohydrate: iron nitrate nonahydrate: nitric acid trihydrate Copper: ethylenediaminetetraacetic acid: citric acid = 1:0.7:0.3:2:4, add deionized water and stir to obtain a mixed solution;

[0065] (2) Heating and stirring the mixed solution in step (1), the stirring rate is 600 rpm, the heating temperature is 105°C, ammonia water is added dropwise during the heating and stirring process, and the sol is obtained after 7 hours;

[0066] (3) Place the sol in step (2) in a tube furnace at 300°C and keep it warm for 9 hours to obtain ...

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Abstract

The invention relates to the technical field of catalysts, and particularly discloses a microbial fuel cell cathode catalyst which is CaFe1-XCuXO3, and X is more than or equal to 0 and less than or equal to 0.5. Compared with a Pt / C catalyst, the microbial fuel cell cathode catalyst is low in manufacturing cost, simple in process, wide in raw material source, relatively low in cost, simple to maintain, stable in output and relatively high in power when being applied to a microbial fuel cell. Meanwhile, the invention also discloses a preparation method and application of the microbial fuel cellcathode catalyst.

Description

technical field [0001] The invention relates to the field of bioelectrochemistry, in particular to a microbial fuel cell cathode catalyst CaFe 1- X Cu X o 3 And its preparation method and application. Background technique [0002] Energy shortage and environmental pollution are two major problems facing the world in this century, and they are also one of the problems that modern industry needs to solve urgently. With the exploitation of fossil energy, it will continue to decrease, and at the same time, it will cause very large pollution to the environment. Therefore, the development of a technology that can both control pollution and utilize energy in polluting substances will have an important impact on the sustainable development of global economic life. Microbial fuel cell technology is expected to take into account both energy and environmental aspects. [0003] A microbial fuel cell (MFC) is a device that uses bacteria to degrade biomass to generate bioelectric en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/96H01M4/88H01M8/16C02F3/00C02F3/34
CPCC02F3/005C02F3/34H01M4/8825H01M4/9016H01M4/96H01M8/16H01M2004/8689Y02E60/50Y02P70/50
Inventor 张鸿郭施辉辉王燕黄麟哲陈镇新阎佳肖唐付
Owner GUANGZHOU UNIVERSITY
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