Towards biochemical fuel cells

Sonawat, H. M. ; Phadke, Ratna S. ; Govil, Girjesh (1984) Towards biochemical fuel cells Proceedings of the Indian Academy of Sciences - Chemical Sciences, 93 (6). pp. 1099-1107. ISSN 0253-4134

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A biochemical fuel cell is a device which converts chemical energy into electrical power. The catalysts used in this process can be either inorganic or organic type giving rise to 'inorganic fuel cells' or 'biochemical fuel cells', respectively. Biochemical fuel cells use either micro-organism or enzymes as active components to carry out electrochemical reactions. The efficiency of such a device theoretically can be as high as 90%. The difficulty in attaining these values arises due to sluggishness of electron transfer from active site to conducting electrode. This can be overcome by using mediators or by immobilizing active components on conducting electrode. We have immobilizedfad-glucose oxidase on a graphite electrode using a semiconducting chain as a bridge. At the present stage of development, such a device tacks high current densities, which is essential for commercial power generation but can be used in applications such as pacemakers and glucose sensors.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Biochemical Fuel Cell; Enzyme-coenzyme System; Immobilization; Modified Electrode; Cyclic Voltametry
ID Code:15482
Deposited On:13 Nov 2010 09:00
Last Modified:17 May 2016 00:22

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