Journal of the Electrochemical Society, Vol.146, No.8, 2841-2844, 1999
Anode materials for a hydrogen sulfide solid oxide fuel cell
The performance of a solid oxide fuel cell utilizing hydrogen sulfide as a fuel was studied with CoS1.035, WS2, and Li2S/CoS1.035 anode materials. The electrolyte was yttria-stabilized zirconia with a thickness ranging from 40-500 mu m. Power densities of over 400 mW/cm(2) were obtained with the Li/Co sulfide based material and gas analysis demonstrated hydrogen sulfide destruction levels in excess of 75%. Cell performance was noted to degrade slightly over time, which can be attributed to air leaks within the experimental system or delamination of the electrodes.