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A kind of glycerol catalytic biofuel cell anode and its preparation method and application

A biofuel cell, anode technology, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve problems such as short battery life, and achieve the effects of increasing load capacity, increasing load capacity, and easy preparation

Inactive Publication Date: 2018-07-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) Short battery life

Method used

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  • A kind of glycerol catalytic biofuel cell anode and its preparation method and application
  • A kind of glycerol catalytic biofuel cell anode and its preparation method and application
  • A kind of glycerol catalytic biofuel cell anode and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) The glassy carbon electrode with a diameter of 3 mm is sequentially filled with Al with a diameter of 0.3 μm and 0.05 μm 2 o 3 The powder is polished to a mirror surface, rinsed with distilled water, and then ultrasonically cleaned in absolute ethanol and distilled water for 1 min, and then the glassy carbon electrode is placed in 0.5mol / L H 2 SO 4 The electrode is activated in the solution, taken out, rinsed with distilled water, and dried to obtain a pretreated glassy carbon electrode;

[0034] (2) Take 6 μL of Nafion methanol solution with a mass fraction of 0.5% and drop it on the surface of the pretreated glassy carbon electrode, and place it at room temperature for about 1.5h. After the solvent on the electrode surface evaporates, a layer of Nafion film is formed; then insert the electrode Soak in an aqueous solution containing 0.1mmol / L Meldola blue (prepared by adding 3.8mg Meldola blue to 100mL distilled water), so that Meldola blue can be fixed on the Na...

Embodiment 2

[0041] (1) The glassy carbon electrode with a diameter of 3 mm is sequentially filled with Al with a diameter of 0.3 μm and 0.05 μm 2 o 3 The powder is polished to a mirror surface, rinsed with distilled water, and then ultrasonically cleaned in absolute ethanol and distilled water for 1 min, and then the glassy carbon electrode is placed in 0.5mol / L H 2 SO 4 The electrode is activated in the solution, taken out, rinsed with distilled water, and dried to obtain a pretreated glassy carbon electrode;

[0042] (2) Take 6 μL of Nafion methanol solution with a mass fraction of 2% and drop it on the surface of the pretreated glassy carbon electrode, and place it at room temperature for about 1.5h. After the solvent on the electrode surface evaporates, a layer of Nafion film is formed; then insert the electrode Soak in an aqueous solution containing 0.1mmol / L Meldola blue (prepared by adding 3.8mg Meldola blue to 100mL distilled water), so that Meldola blue can be fixed on the Nafi...

Embodiment 3

[0046] (1) The glassy carbon electrode with a diameter of 3 mm is sequentially filled with Al with a diameter of 0.3 μm and 0.05 μm 2 o 3 The powder is polished to a mirror surface, rinsed with distilled water, and then ultrasonically cleaned in absolute ethanol and distilled water for 1 min, and then the glassy carbon electrode is placed in 0.5mol / L H 2 SO 4 The electrode is activated in the solution, taken out, rinsed with distilled water, and dried to obtain a pretreated glassy carbon electrode;

[0047] (2) Take 6 μL of Nafion methanol solution with a mass fraction of 5% and drop it on the surface of the pretreated glassy carbon electrode, and place it at room temperature for about 1.5h. After the solvent on the electrode surface volatilizes, a layer of Nafion film is formed; then insert the electrode Soak in an aqueous solution containing 0.1mmol / L Meldola blue (prepared by adding 3.8mg Meldola blue to 100mL distilled water), so that Meldola blue can be fixed on the Naf...

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PUM

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Abstract

The invention belongs to the field of an electrochemical biological fuel cell, and discloses a positive electrode of a glycerin catalytic biological fuel cell and a preparation method and application of the positive electrode. The preparation method comprises the following steps of carrying out surface pre-processing on a substrate electrode, and dropwise adding a Nafion solution to the surface of the electrode to form a layer of Nafion film; inserting the electrode into a Meldola blue aqueous solution for immersion so as to fix the Meldola blue in the Nafion film through ion exchange; taking out the electrode, and washing and drying the electrode to obtain an electrode containing a dielectric layer; and uniformly mixing a graphene-containing chitosan solution, an alcohol dehydrogenase aqueous solution, an acetaldehyde dehydrogenase aqueous solution and a horseradish peroxide aqueous solution according to proportions, dropwise adding the above solutions to the surface of the above electrode, and drying the electrode to obtain the positive electrode of the glycerin catalytic biological fuel cell. The product provided by the invention has the advantages of low cost, a large catalytic and dielectric loading capacity, high catalytic performance and the like, and has favorable application prospect.

Description

technical field [0001] The invention belongs to the field of electrochemical biofuel cells, and in particular relates to a glycerol catalyzed biofuel cell anode, a preparation method and application thereof. Background technique [0002] A biofuel cell is a device that converts biological energy and chemical energy into electrical energy by means of biological power generation. At least part of its system uses microbial tissue or enzymes as a catalyst for the battery reaction. Biofuel cells can be divided into two categories according to different catalytic methods: one is enzyme biofuel cells, which directly use different redox enzymes isolated from organisms as catalysts; the other is microbial fuel cells, which use whole microorganisms As a catalyst, it actually uses enzymes in microorganisms indirectly. [0003] The study found that the enzyme electrode has high catalytic activity. Compared with the traditional fuel cell with Pt and other noble metals as the catalytic e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/90H01M8/16H01M4/88
CPCH01M4/8817H01M4/8842H01M4/9075H01M8/16Y02E60/50Y02P70/50
Inventor 朴金花董长城姜建国薛倩然陈启荣姚玮王程正
Owner SOUTH CHINA UNIV OF TECH