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Preparation and application of a kind of microbial fuel cell cathode catalyst

A fuel cell cathode and catalyst technology, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve problems such as poor conductivity and complex application, and achieve the effects of low cost, simple process and stable product quality

Active Publication Date: 2016-06-29
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of manganese dioxide is poor, and when it is used as a cathode catalyst, it needs to be doped with a material with good conductivity to improve its conductivity, and the application is more complicated.

Method used

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  • Preparation and application of a kind of microbial fuel cell cathode catalyst
  • Preparation and application of a kind of microbial fuel cell cathode catalyst
  • Preparation and application of a kind of microbial fuel cell cathode catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add potassium permanganate to deionized water, stir to form a uniform solution with a concentration of 0.3mol / L of potassium permanganate, then add manganese sulfate and stir to form a uniform mixed solution, the mass ratio of potassium permanganate and manganese sulfate 5:2, then transfer the above mixed solution to a high-temperature and high-pressure reactor with a polytetrafluoroethylene liner, react at a temperature of 140°C for 2 hours, then cool to room temperature, filter, and use deionized Rinse with water until neutral, and dry in air at 100°C to obtain manganese dioxide nanoflowers. Subsequently, 0.15 g of the above-mentioned manganese dioxide nanoflowers were placed in 60 ml of 0.01 mol / LH 2 SO 4 In the solution, ultrasonically suspend, quickly add 100μL pyrrole monomer and 40ml0.01mol / LH 2 SO 4 The mixture of the solution was placed in an ice bath and stirred for 3 hours, then filtered, and the filtered solid deionized water and ethanol were alternately ...

Embodiment 2

[0026] Add potassium permanganate to deionized water, stir to form a uniform solution with a concentration of 0.3mol / L of potassium permanganate, then add manganese sulfate and stir to form a uniform mixed solution, the mass ratio of potassium permanganate and manganese sulfate 5:2, then transfer the above mixed solution to a high-temperature and high-pressure reactor with a polytetrafluoroethylene liner, react at a temperature of 140°C for 12 hours, then cool to room temperature, filter, and use deionized Rinse with water until neutral, and dry in air at 100° C. to obtain manganese dioxide having a mixed morphology of nanotubes and nanorods (nanorods account for 60%, and nanotubes account for 40%). Subsequently, 0.15g of the above-mentioned manganese dioxide nanomaterials were placed in 60ml0.01mol / LH 2 SO 4 In the solution, ultrasonically suspend, quickly add 100μL pyrrole monomer and 40ml0.01mol / LH 2 SO 4 The mixture of the solution was placed in an ice bath and stirred ...

Embodiment 3

[0028] Add potassium permanganate to deionized water, stir to form a uniform solution with a concentration of 0.3mol / L of potassium permanganate, then add manganese sulfate and stir to form a uniform mixed solution, the mass ratio of potassium permanganate and manganese sulfate 5:2, then transfer the above mixed solution to a high-temperature and high-pressure reactor with a polytetrafluoroethylene liner, react at a temperature of 140°C for 18 hours, then cool to room temperature, filter, and use deionized Rinse with water until neutral, and dry in air at 100°C to obtain manganese dioxide nanorods. Subsequently, 0.15g of the above-mentioned manganese dioxide nanoparticles were placed in 60ml0.01mol / LH 2 SO 4 In the solution, ultrasonically suspend, quickly add 100μL pyrrole monomer and 40ml0.01mol / LH 2 SO 4 The mixture of the solution was placed in an ice bath and stirred for 3 hours, then filtered, and the filtered solid deionized water and ethanol were alternately washed ...

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Abstract

The invention discloses a preparation method of a cathode catalyst for a microbial fuel cell, the technology is simple, the cost is low, the reaction condition is mild, and an obtained product has the advantages of stable quality, good conductivity and higher catalytic electrochemical activity, and can be widely applied to the basic research in lithium ion battery, molecular sieve, microbial fuel cell cathode catalyst, super-capacitor and other related fields.

Description

Technical field: [0001] The invention relates to the preparation and application of a microbial fuel cell cathode catalyst. Background technique: [0002] In today's world, energy problems are becoming more and more serious, and the greenhouse effect brought by fossil fuels is increasing day by day. Renewable bio-energy has attracted widespread attention. Microbial fuel cell is a device that uses electricity-producing microorganisms to directly convert chemical energy in organic matter into electrical energy. It uses organic matter as raw material (such as sewage, sludge, etc.), and as the organic matter degrades, the chemical energy in the organic matter is released. , the generated electrons are captured by microorganisms and delivered to the anode, and the electrons reach the cathode through the external circuit to generate current. The advantages of microbial fuel cells are wide range of sources of raw materials, organic waste treatment while generating electricity, low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88H01M4/90
CPCH01M4/90H01M4/9016H01M8/16Y02E60/50
Inventor 袁浩然邓丽芳陈勇袁勇周顺桂
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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