A Viable Electrode Material for Use in Microbial Fuel Cells for Tropical Regions

Felix Offei, Anders Thygesen, Moses Mensah, Kwame Tabbicca, Dinesh Fernando, Irina Petrushina and Geoffrey Daniel
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Felix Offei: Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Anders Thygesen: Center for Bioprocess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads 229, Lyngby DK-2800, Denmark
Moses Mensah: Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Kwame Tabbicca: Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Dinesh Fernando: Department of Forest Products, Swedish University of Agricultural Sciences, Uppsala SE-75651, Sweden
Irina Petrushina: Department of Energy Conversion and Storage, Technical University of Denmark, Building 207, Lyngby DK-2800, Denmark
Geoffrey Daniel: Department of Forest Products, Swedish University of Agricultural Sciences, Uppsala SE-75651, Sweden

Energies, 2016, vol. 9, issue 1, 1-14

Abstract: Electrode materials are critical for microbial fuel cells (MFC) since they influence the construction and operational costs. This study introduces a simple and efficient electrode material in the form of palm kernel shell activated carbon (AC) obtained in tropical regions. The novel introduction of this material is also targeted at introducing an inexpensive and durable electrode material, which can be produced in rural communities to improve the viability of MFCs. The maximum voltage and power density obtained (under 1000 ? load) using an H-shaped MFC with AC as both anode and cathode electrode material was 0.66 V and 1.74 W/m 3 , respectively. The power generated by AC was as high as 86% of the value obtained with the extensively used carbon paper. Scanning electron microscopy and Denaturing Gradient Gel Electrophoresis (DGGE) analysis of AC anode biofilms confirmed that electrogenic bacteria were present on the electrode surface for substrate oxidation and the formation of nanowires.

Keywords: activated carbon; palm kernel shells; nanowires; maximum power density (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: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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