Modeling and Simulation of Enzymatic Biofuel Cells with Three-Dimensional Microelectrodes

Yin Song, Varun Penmatsa and Chunlei Wang
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Yin Song: Department of Mechanical and Materials Science Engineering, Florida International University, 10555 W. Flagler Street, Miami, FL 33174, USA
Varun Penmatsa: Department of Mechanical and Materials Science Engineering, Florida International University, 10555 W. Flagler Street, Miami, FL 33174, USA
Chunlei Wang: Department of Mechanical and Materials Science Engineering, Florida International University, 10555 W. Flagler Street, Miami, FL 33174, USA

Energies, 2014, vol. 7, issue 7, 1-16

Abstract: The enzymatic biofuel cells (EBFCs) are considered as an attractive candidate for powering future implantable medical devices. In this study, a computational model of EBFCs based on three-dimensional (3-D) interdigitated microelectrode arrays was conducted. The main focus of this research is to investigate the effect of different designs and spatial distributions of the microelectrode arrays on mass transport of fuels, enzymatic reaction rate, open circuit output potential and current density. To optimize the performance of the EBFCs, numerical simulations have been performed for cylindrical electrodes with various electrode heights and well widths. Optimized cell performance was obtained when the well width is half of the height of the 3-D electrode. In addition, semi-elliptical shaped electrode is preferred based on the results from current density and resistive heating simulation.

Keywords: finite element analysis; enzymatic biofuel cell; Michaelis-Menten enzyme kinetics; mass transport; current density distribution; steady state response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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