The performance of a thermophilic microbial fuel cell fed with synthesis gas
The performance of a thermophilic microbial fuel cell fed with synthesis gas enzyme
; Hussain, A.
; Mehta, P.
; Raghavan, V.
; Wang, H.
; Guiot, S. R.
NRC Biotechnology Research Institute; NRC Institute for Fuel Cell Innovation; National Research Council Canada
Enzyme and Microbial Technology
MFC; Synthesis gas; Carbon monoxide; Thermophilic conditions
This study demonstrated electricity generation in a thermophilic microbial fuel cell (MFC) operated on synthesis gas (syngas) as the sole electron donor. At 50 °C, a volumetric power output of View the MathML source and a syngas conversion efficiency of 87–98% was achieved. The observed pathway of syngas conversion to electricity primarily consisted of a two-step process, where the carbon monoxide and hydrogen were first converted to acetate, which was then consumed by the anodophilic bacteria to produce electricity. A denaturing gradient gel electrophoresis (DGGE) analysis of the 16S rDNA revealed the presence of Geobacter species, Acetobacter, methanogens and several uncultured bacteria and archaea in the anodic chamber.