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Development of a flexible direct photosynthetic/metabolic biofuel cell for mobile use

Authors
  • Moriuchi, Takeyuki1
  • Sumida, Shiro1
  • Furuya, Akihiro1
  • Morishima, Keisuke1
  • Furukawa, Yuji2
  • 1 Tokyo University of Agriculture & Technology, Department of Mechanical Systems Engineering, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan , Tokyo (Japan)
  • 2 Polytechnic University, 4-1-1 Hashimotodai, Sagamihara, Kanagawa, 229-1196, Japan , Sagamihara, Kanagawa (Japan)
Type
Published Article
Journal
International Journal of Precision Engineering and Manufacturing
Publisher
Korean Society for Precision Engineering
Publication Date
Jan 01, 2009
Volume
10
Issue
1
Pages
75–78
Identifiers
DOI: 10.1007/s12541-009-0011-6
Source
Springer Nature
Keywords
License
Yellow

Abstract

We have developed a direct photosynthetic/metabolic biofuel cell (DPBFC) without a mediator, based on the extraction of electrons directly from bacteria using a polyaniline electrode. Since previous developments of this nature are rigid, they are not suitable for use on curved or soft surfaces. Our DPBFC has a flexible structure due to its flexible components: a membrane electrode assembly made of Nafion 117, a carbon cloth electrode made of modified polyaniline, a copper foil current collector, an anode chamber made from molded polydimethylsiloxane (PDMS), and a cathode chamber and cover cut from a PDMS membrane. Silicone bonds were used for assembling the individual parts. Our 50×50×3-mm flexible DPBFC has a stable electrical power output up to a bending angle of 170°. The maximum power density using purple photosynthetic bacteria (Rhodopesudomonas palustris) as a fuel source was 5.26μW/cm2 with an open-circuit voltage of 0.089 V.

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