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A kind of preparation method of magnetic conductive bioceramic electrode for microbial fuel cell

A technology of fuel cells and bioceramics, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of lower conversion efficiency of battery systems, low ion exchange efficiency, and difficulty in biofilm formation, achieving short production time and good electrical conductivity , the effect of low synthesis cost

Inactive Publication Date: 2016-08-24
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current electrode materials are fragile, easy to be corroded, not resistant to acid and alkali, difficult to form biofilms, easy to block pores, and ion exchange efficiency will become lower and lower, thereby reducing the conversion efficiency of the entire battery system

Method used

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  • A kind of preparation method of magnetic conductive bioceramic electrode for microbial fuel cell

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Embodiment 1

[0025] A preparation method for a magnetically conductive bioceramic electrode for a microbial fuel cell, comprising the following steps:

[0026] The first step is to prepare a porous ceramic plate: pour 30% of clay, 30% of quartz sand, 15% of fly ash, 5% of resin, and 20% of feldspar into the beaker by weight percentage, mix, granulate, and pass through 40 mesh Sieve, press molding at 20MPa, dry at 70°C, and fire at 1260°C to obtain porous ceramic plates;

[0027] The second step is to prepare the anode electrode: 2.5g graphite and 1.5g nano Fe 3 o 4 After mixing, add 12g of water glass solution with a mass concentration of 30% and stir to obtain a mixed coating, and then use a brush to coat the mixed coating on the porous ceramic plate prepared in the first step and then dry it at 70°C;

[0028] The third step is to prepare the cathode electrode: including the preparation of coating the carbon base layer, coating the diffusion layer, and coating the catalytic layer. The s...

Embodiment 2

[0033] A preparation method for a magnetically conductive bioceramic electrode for a microbial fuel cell, comprising the following steps:

[0034] The first step is to prepare a porous ceramic plate: pour 30% of clay, 30% of quartz sand, 15% of fly ash, 5% of resin, and 20% of feldspar into the beaker by weight percentage, mix, granulate, and pass through 40 mesh Sieve, press molding at 20MPa, dry at 70°C, and fire at 1280°C to obtain porous ceramic plates;

[0035] The second step is to prepare the anode electrode: 2.0g graphite and 1.2g nano Fe 3 o 4 After mixing, add 9.6g of water glass solution with a mass concentration of 30% and stir evenly to obtain a mixed coating, apply the mixed coating on the porous ceramic plate prepared in the first step with a brush, and then dry it at 70°C ;

[0036] The third step is to prepare the cathode electrode: including the preparation of coating the carbon base layer, coating the diffusion layer, and coating the catalytic layer. The ...

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Abstract

The invention relates to a preparation method of a porous magnetic conductive biological ceramic electrode for a microbial fuel cell. The preparation method comprises the steps of the preparation of a porous ceramic plate, preparation of an anode electrode and preparation of a cathode electrode. By utilizing the advantages and the characteristics of conductivity and biocompatibility of a porous ceramic, the surface area of the electrode is increased, the electrode has biomagnetism, and is favorable for biofilm colonization and stripping, and the function of a biofilm in the electrode is improved; meanwhile, the electrode has the characteristics of good waterproof performance, good conductivity, good air permeability, low synthesis cost, and short production time, and thus has broad market prospects.

Description

technical field [0001] The invention belongs to the field of microbial fuel cells, and in particular relates to a method for preparing magnetically conductive bioceramic electrodes for microbial fuel cells. Background technique [0002] As a new type of biomass utilization method, microbial fuel cell (MFC) converts the energy contained in organic acids and sugars into electrical energy by means of the catalysis of microorganisms. Compared with other methods, it has its unique advantages and characteristics, and it is an optimized utilization method of renewable energy. [0003] In MFC, the anode mainly provides a place for microorganisms to grow and accepts electrons generated by microorganisms passed over. Studies have shown that the different materials of the anode will affect the growth of microorganisms on the prototype and the transfer of electrons on the anode. The cathode is a decisive factor that determines the power generation performance of MFC. The production of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88
CPCH01M4/8605H01M4/8657H01M4/88H01M4/8839Y02E60/50
Inventor 成岳谢文成范小丰盛丽平刘小聪
Owner JINGDEZHEN CERAMIC UNIV
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