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Enzyme fuel cell anode and preparation method thereof

A fuel cell and anode technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of short lifespan and low power of enzymes, and achieve the effects of high-efficiency oxidation capacity, prolonging lifespan, and increasing current power

Inactive Publication Date: 2011-09-21
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an enzyme fuel cell anode in order to solve the problems of short enzyme life and low power in existing enzyme fuel cells

Method used

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  • Enzyme fuel cell anode and preparation method thereof
  • Enzyme fuel cell anode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] exist figure 1 In the process, the enzyme crude extract of Gluconobacter oxydans is mixed with 3%-5% chitosan solution evenly, and then immersed in 3% sodium alginate aqueous solution together with the graphite electrode to form chitosan / sodium alginate gel, and then immersed in 5% calcium chloride aqueous solution to form a calcium alginate gel structure outside the chitosan / sodium alginate gel.

Embodiment 2

[0017] The composition of this example is basically the same as that of Example 1, except that the enzyme used is dehydrogenase separated and purified from the crude enzyme extract.

Embodiment 3

[0019] The composition of this example is basically the same as that of Example 1, except that the enzyme used is the oxidase isolated and purified from the crude enzyme extract.

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Abstract

The invention discloses an enzyme fuel cell anode. In the structure of the anode, gelatin formed by chitosan and derivates thereof is adhered on the periphery of the anode, and the structure comprises dehydrogenase or oxidase derived from oxidized gluconic acid bacillus; and chitosan gelatin containing enzyme is coated with gelatin formed by alginate. The preparation method comprises the following steps: evenly mixing the dehydrogenase or the oxidase and chitosan or the derivates thereof in the oxidized gluconic acid bacillus; adding a cross-linking agent; leading the enzyme and the chitosan or the derivates thereof to form the gelatin together to adhere on the periphery of a graphite electrode; dipping the graphite electrode adhered with the chitosan gelatin on the periphery into a sodium alginate water solution; soaking in a solution containing calcium ions or other metal icons, so as to lead the sodium alginate to form compact calcium alginate or other alginate gelatin to be coated outside the chitosan gelatin. By utilizing the anode provided by the invention, the current output power of the enzyme fuel cell can be enhanced, the stability of the enzyme is enhanced and the battery supply time is prolonged.

Description

technical field [0001] The invention relates to a structure of an enzyme fuel cell anode. [0002] The present invention also relates to a preparation method of the anode structure of the enzyme fuel cell. Background technique [0003] Enzyme fuel cell is a kind of device that uses biological enzymes to degrade organic substances such as monosaccharides and ethanol through oxidation reactions to generate electric current. Enzyme fuel cells have mild reaction conditions and will not pollute the environment. But because the enzyme required for the reaction is easily degraded and inactivated, its half-life is usually several hours to several days, so the life of the battery is relatively short. In addition, due to the limitation of the catalytic efficiency of the enzyme, the current output power is low, and it needs to be improved. Contents of the invention [0004] The object of the present invention is to provide an anode for an enzyme fuel cell to solve the problems of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/90H01M4/88
CPCY02E60/50
Inventor 王宏田王波
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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