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Electrooxidation of ascorbic acid on polyaniline and its implications to fuel cells

Mondal, SK and Raman, RK and Shukla, AK and Munichandraiah, N (2005) Electrooxidation of ascorbic acid on polyaniline and its implications to fuel cells. In: Journal of Power Sources, 145 (1). pp. 16-20.


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L-Ascorbic acid (AA) has been shown to undergo oxidation on polyaniline(PANI) without a platinum in-group catalyst. A direct ascorbic acid fuel cell (DAAFC) has been assembled by employing an anode coated with PANI catalyst. From the experimental studies using cyclic voltammetry,amperometry and IR spectroscopy, it has been concluded that PANI facilitates the oxidation of AA. It has been possible to achieve a maximum power density of 4.3 mW $cm^{-2}$ at a load current density of 15 mA $cm^{-2}$ at 70 C. As both AA and PANI are inexpensive and environmental-friendly, the present findings are expected to be useful for the development of cost-effective DAAFCs for several low power applications.

Item Type: Journal Article
Publication: Journal of Power Sources
Publisher: Elsevier Science BV
Additional Information: Copyright for this article belongs to Elsevier.
Keywords: Ascorbic acid;Polyaniline;Electrooxidation;Fuel cell
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 26 Jul 2005
Last Modified: 19 Sep 2010 04:19
URI: http://eprints.iisc.ac.in/id/eprint/3399

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