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Energies 2012, 5(7), 2524-2544; doi:10.3390/en5072524

Dynamic Modeling of Anode Function in Enzyme-Based Biofuel Cells Using High Mediator Concentration

Department of Chemical and Materials Engineering, Lee-Ming Institute of Technology, Tai-Sham 24305, Taiwan
Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li 32003, Taiwan
Author to whom correspondence should be addressed.
Received: 21 March 2012 / Revised: 5 June 2012 / Accepted: 27 June 2012 / Published: 17 July 2012
(This article belongs to the Special Issue Hydrogen Energy and Fuel Cells)
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The working principle of enzyme-based biofuel cells (EBFCs) is the same as that of conventional fuel cells. In an EBFC system, the electricity-production process is very intricate. Analysis requires a mathematical model that can adequately describe the EBFC and predict its performance. This paper develops a dynamic model simulating the discharge performance of the anode for which supported glucose oxidase and mediator immobilize in the EBFC. The dynamic transport behavior of substrate, redox state (ROS) of enzyme, enzyme-substrate complex, and the mediator creates different potential changes inside the anode. The potential-step method illustrates the dynamic phenomena of substrate diffusion, ROS of enzyme, production of enzyme-substrate complex, and reduction of the mediator with different potential changes. View Full-Text
Keywords: bioelectrocatalysis; dynamic model; enzyme-based biofuel cell (EBFC); immobilized; mediator bioelectrocatalysis; dynamic model; enzyme-based biofuel cell (EBFC); immobilized; mediator

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chan, D.-S.; Dai, D.-J.; Wu, H.-S. Dynamic Modeling of Anode Function in Enzyme-Based Biofuel Cells Using High Mediator Concentration. Energies 2012, 5, 2524-2544.

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