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Detailed mathematical model of an enzymatic fuel cell
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Osman, M. H., Shah, Akeel A. and Wills, R. G. A. (2013) Detailed mathematical model of an enzymatic fuel cell. Journal of The Electrochemical Society, 160 (8). F806-F814. doi:10.1149/1.059308jes ISSN 0013-4651.
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Official URL: https://doi.org/10.1149/1.059308jes
Abstract
In this paper, two-dimensional steady-state and dynamic models for an enzymatic fuel cell are developed. The anode consists of a biocatalyst (an enzyme cascade of glucose dehydrogenase and diaphorase with VK3 mediator) immobilized in a porous electrically-conducting anode, while glucose and the phosphate buffer are supplied from a solution. An air-breathing bilirubin oxidase/ferricyanide cathode and a cellophane membrane complete the cell unit. Detailed mass and charge balances are combined with a model for the reaction mechanism in the electrodes. The model is validated against experimental polarization data, demonstrating good agreement, and the dynamic performance is discussed. The VK3 equilibrium potential is varied and its effect on the enzymatic system and power output is examined.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > Q Science (General) | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Journal or Publication Title: | Journal of The Electrochemical Society | ||||||
Publisher: | Electrochemical Society, Inc. | ||||||
ISSN: | 0013-4651 | ||||||
Official Date: | 16 May 2013 | ||||||
Dates: |
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Volume: | 160 | ||||||
Number: | 8 | ||||||
Page Range: | F806-F814 | ||||||
DOI: | 10.1149/1.059308jes | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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