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Zinc-air cell employing laccase as the oxygen reduction catalyst

Ahmad, Abdul Aziz and Yusof, Faridah and Abd. Wahab, Mohd. Firdaus and Othman, Raihan (2010) Zinc-air cell employing laccase as the oxygen reduction catalyst. In: 3rd International Conference on Functional Materials and Devices 2010, 13-17 June 2010, Kuala Terengganu, Terengganu, Malaysia. (Unpublished)

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Abstract

Zinc-air cell employing laccase enzyme as the oxygen reduction catalyst has been investigated. Laccase is an oxidoreductase, belongs to the copper-containing enzyme family which attracts many due to its ability to reduce molecular oxygen to water. The test cell consisted of zinc metal foil as the anode and a carbon-based air electrode as the cathode, encapsulated in a single chamber, home-made acrylic board casing. The electrolyte composed of laccase and syringaldazine in a potassium dihydrogen phosphate buffer. The performance of the cell was also evaluated using sodium citrate buffer and potassium citrate buffer. Zinc-air cell utilizing laccase biocatalyst registered an open circuit voltage of 1.2 V and was able to sustain a discharge load of 500 A.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: 4734/6711
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ807 Renewable energy sources
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2896 Production of electricity by direct energy conversion
T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP250 Industrial electrochemistry
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Science
Depositing User: Raihan Othman
Date Deposited: 16 Dec 2011 11:31
Last Modified: 16 Dec 2011 12:55
URI: http://irep.iium.edu.my/id/eprint/6711

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