Title: Visible light-operated glucose-O₂ biofuel cell

Authors: Yutaka Amao, Yumi Takeuchi

Addresses: Department of Applied Chemistry, Oita University, Dannoharu 700, Oita 870-1192, Japan. ' Department of Applied Chemistry, Oita University, Dannoharu 700, Oita 870-1192, Japan

Abstract: Visible light-operated glucose-O₂ biofuel cell consisting of chlorin-e₆ metal complexes (MChl–e₆, M = H₂ and Zn) adsorbed on TiO₂ coated onto Optical Transparent conductive glass Electrode (OTE) as an anode, platinum electrode as a cathode, and the solution containing glucose, Glucose Dehydrogenase and NAD⁺ as a fuel is studied. The cells using H₂Chl-e₆ and Zn Chl-e₆ adsorbed on TiO₂ coated OTEs are defined as Biofuel Cell_H2 and Biofuel Cell_Zn. The closed-circuit photocurrent in Biofuel Cell_H2 and Biofuel Cell_Zn are 0.067 ± 0.003 and 0.017 ± 0.007 mA cm⁻², and the open-circuit photo voltages are 503 ± 10 and 559 ± 12 mV, respectively.

Keywords: biofuel cells; bioresources; chlorophyll; photosynthesis; titanium oxide; glucose; solar energy; energy sources; fuel cells.

DOI: 10.1504/IJGEI.2007.015881

International Journal of Global Energy Issues, 2007 Vol.28 No.2/3, pp.295 - 303

Published online: 27 Nov 2007 *

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