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

Published in

Energies
2016, Volume: 9, number: 1, article number: 35

SLU Authors

• Fernando, Dinesh

  • Department of Forest Products, Swedish University of Agricultural Sciences
    

• Daniel, Geoffrey

  • Department of Forest Products, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

Ensure access to affordable, reliable, sustainable and modern energy for all


UKÄ Subject classification

Energy Systems
Other Chemical Engineering


Publication identifier

DOI: https://doi.org/10.3390/en9010035

Permanent link to this page (URI)

https://res.slu.se/id/publ/72727