Catalytic steam reforming of ethanol over high surface area CeO2: The role of CeO2 as an internal pre-reforming catalyst

摘要

In the present work, it was found that high surface area ceria (CeO2 (HSA)), synthesized by a surfactant-assisted approach, have useful ethanol steam reforming activity under solid oxide fuel cells (SOFCs) temperatures. The catalyst provides good reforming reactivity and high resistance toward carbon deposition compared to Ni/Al2O3 and conventional low surface area ceria (CeO2 (LSA)). Although the hydrogen selectivity at steady state from the ethanol steam reforming over CeO2 (HSA) was lower than Rh/Al2O3, the resistance toward carbon deposition of CeO2 (HSA) was considerably higher.