A hybrid enzymatic zinc-air fuel cell

A hybrid biofuel cell, a zinc-air cell employing laccase as the oxygen reduction catalyst is investigated. A simple cell design is employed; a membraneless single chamber and a freely suspended laccase in the buffer electrolyte. The cell is characterised based on its open-circuit voltage, power dens...

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Main Authors:	Abdul Aziz Ahmad, Raihan Othman, Faridah Yusof, Mohd Firdaus Abd Wahab
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/6933/ http://journalarticle.ukm.my/6933/ http://journalarticle.ukm.my/6933/1/17_Abdul_Aziz_Ahmad.pdf

id	ukm-6933
recordtype	eprints
spelling	ukm-69332016-12-14T06:42:37Z http://journalarticle.ukm.my/6933/ A hybrid enzymatic zinc-air fuel cell Abdul Aziz Ahmad, Raihan Othman, Faridah Yusof, Mohd Firdaus Abd Wahab, A hybrid biofuel cell, a zinc-air cell employing laccase as the oxygen reduction catalyst is investigated. A simple cell design is employed; a membraneless single chamber and a freely suspended laccase in the buffer electrolyte. The cell is characterised based on its open-circuit voltage, power density profile and galvanostatic discharge at 0.5 mA. The activity of laccase as an oxidoreductase is substantiated from the cell discharge profiles. The use of air electrode in the cell design enhanced the energy output by 14%. The zinc-air biofuel cell registered an open-circuit voltage of 1.2 V and is capable to deliver a maximum power density of 1.1 mWcm-2 at 0.4 V. Despite its simple design features, the power output is comparable to that of biocatalytic cell utilising a much more complex system design. Universiti Kebangsaan Malaysia 2014-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6933/1/17_Abdul_Aziz_Ahmad.pdf Abdul Aziz Ahmad, and Raihan Othman, and Faridah Yusof, and Mohd Firdaus Abd Wahab, (2014) A hybrid enzymatic zinc-air fuel cell. Sains Malaysiana, 43 (3). pp. 459-465. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	A hybrid biofuel cell, a zinc-air cell employing laccase as the oxygen reduction catalyst is investigated. A simple cell design is employed; a membraneless single chamber and a freely suspended laccase in the buffer electrolyte. The cell is characterised based on its open-circuit voltage, power density profile and galvanostatic discharge at 0.5 mA. The activity of laccase as an oxidoreductase is substantiated from the cell discharge profiles. The use of air electrode in the cell design enhanced the energy output by 14%. The zinc-air biofuel cell registered an open-circuit voltage of 1.2 V and is capable to deliver a maximum power density of 1.1 mWcm-2 at 0.4 V. Despite its simple design features, the power output is comparable to that of biocatalytic cell utilising a much more complex system design.
format	Article
author	Abdul Aziz Ahmad, Raihan Othman, Faridah Yusof, Mohd Firdaus Abd Wahab,
spellingShingle	Abdul Aziz Ahmad, Raihan Othman, Faridah Yusof, Mohd Firdaus Abd Wahab, A hybrid enzymatic zinc-air fuel cell
author_facet	Abdul Aziz Ahmad, Raihan Othman, Faridah Yusof, Mohd Firdaus Abd Wahab,
author_sort	Abdul Aziz Ahmad,
title	A hybrid enzymatic zinc-air fuel cell
title_short	A hybrid enzymatic zinc-air fuel cell
title_full	A hybrid enzymatic zinc-air fuel cell
title_fullStr	A hybrid enzymatic zinc-air fuel cell
title_full_unstemmed	A hybrid enzymatic zinc-air fuel cell
title_sort	hybrid enzymatic zinc-air fuel cell
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/6933/ http://journalarticle.ukm.my/6933/ http://journalarticle.ukm.my/6933/1/17_Abdul_Aziz_Ahmad.pdf
first_indexed	2023-09-18T19:48:17Z
last_indexed	2023-09-18T19:48:17Z
_version_	1777406047201263616

A hybrid enzymatic zinc-air fuel cell

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