Abstract

A Ru/CGO electrocatalyst was investigated in combination with a Cu current collector for the direct electro-oxidation and internal reforming of propane in a solid oxide fuel cell. Comparable electrochemical power densities for both direct oxidation and internal reforming have been measured at 750°C. The electrochemical performance in the presence of propane was significantly affected by the polarization resistance which is about four times larger than that obtained for the SOFC fed with hydrogen. However, out-of-cell steam reforming tests showed a C 3 H 8 conversion to syngas approaching 90% at 800°C. Thus, it is observed that significant enhancements may be achieved by properly optimizing the anode structure. No formation of carbon deposits was observed for operation of the anode both in the direct oxidation and the internal reforming processes at 750°C.

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