Ni-Ce0.85Sm0.15O2-d coating on NiCrAl foam for dry reforming of methane

In the present work, 5wt% Ni-Ce0.85Sm0.15O2-δ powders were synthesized by citrate-nitrate auto-combustion method and structured catalysts based on NiCrAl alloy foam were prepared by wash-coating technique. The open-pores of the foam enhance the heat and mass transfer. Besides, the oxygen vacancies of SDC promote the CH4 and CO2 activation for carbon suppression. Microstructural analysis of Ni-SDC/NiCrAl faom structured catalyst displayed a homogeneous distribution of the catalytic layer. Catalytic tests for DRM at 800 °C showed that the CH4 conversion was 87%, close to thermodynamic equilibrium, and the yield of H2 was 76%, indicating that the structured catalyst is suitable for indirect internal reforming in SOFCs.