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Biofuel cell anode of enzymatic glycerin and preparation method and application of biofuel cell anode

A technology of biofuel cell and glycerin, which is applied in the field of electrochemical enzyme biofuel cell, can solve the problems of short battery life and achieve the effect of increasing load capacity, good catalytic performance and increasing load capacity

Inactive Publication Date: 2016-05-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(2) Short battery life

Method used

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  • Biofuel cell anode of enzymatic glycerin and preparation method and application of biofuel cell anode
  • Biofuel cell anode of enzymatic glycerin and preparation method and application of biofuel cell anode

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (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;

[0033] (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

[0039] (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;

[0040] (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 3

[0045] (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;

[0046] (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...

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Abstract

The invention belongs to the field of electrochemical enzyme biofuel cells, and discloses a biofuel cell anode of enzymatic glycerin and a preparation method and an application of the biofuel cell anode. The preparation method comprises the following steps: carrying out surface pretreatment on a base electrode, dripping a Nafion solution on the surface of the electrode to form a Nafion film; inserting the electrode into a Meldola's blue water solution for soaking, and fixing the Meldola's blue to the Nafion film through ion exchange; taking out the electrode, and cleaning and drying the electrode to obtain the electrode containing a mediator layer; and mixing a chitosan solution containing graphene, a glycerol kinase water solution and a glycerol-3-phosphate oxidase water solution evenly at the ratio, dripping the mixed solution on the surface of the electrode and drying the surface of the electrode to form the biofuel cell anode of the enzymatic glycerin. The product disclosed by the invention has the advantages of low cost, high catalyst and mediator charge capacity, good catalytic performance and the like, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of electrochemical enzyme biofuel cells, and in particular relates to an anode of an enzyme-catalyzed glycerin biofuel cell, 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] Enzyme fuel cells need to work continuously and stably for several months or even longer, which not only requires the electrode modificatio...

Claims

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Application Information

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IPC IPC(8): H01M4/96H01M4/88
CPCH01M4/8828H01M4/96Y02E60/50
Inventor 朴金花董长城陈东霞张力姜建国
Owner SOUTH CHINA UNIV OF TECH
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