Impact of electrode composition on electricity generation in a single-compartment fuel cell using Shewanella putrefaciens
- 1 June 2002
- journal article
- research article
- Published by Springer Nature in Applied Microbiology and Biotechnology
- Vol. 59 (1) , 58-61
- https://doi.org/10.1007/s00253-002-0972-1
Abstract
The production of electricity by Shewanella putrefaciens in the absence of exogenous electron acceptors was examined in a single compartment fuel cell with different types of electrodes and varying physiological conditions. Electricity production was dependent on anode composition, electron donor type and cell concentration. A maximum current of 2.5 mA and a current density of 10.2 mW/m2 electrode was obtained with a Mn4+ graphite anode, 200 mM sodium lactate and a cell concentration of 3.9 g cell protein/ml. Current production by S. putrefaciens was enhanced 10-fold when an electron mediator (i.e., Mn4+ or neutral red) was incorporated into the graphite anode.Keywords
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