Effects of metal cation doping in CeO₂ support on catalytic methane steam reforming at low temperature in an electric field.

ABSTRACT: Catalytic methane steam reforming was conducted at low temperature using a Pd catalyst supported on Ce_1-x M _x O₂ (x = 0 or 0.1, M = Ca, Ba, La, Y or Al) oxides with or without an electric field (EF). The effects of the catalyst support on catalytic activity and surface proton hopping were investigated. Results show that Pd/Al-CeO₂ (Pd/Ce_0.9Al_0.1O₂) showed higher activity than Pd/CeO₂ with EF, although their activity was identical without EF. Thermogravimetry revealed a larger amount of H₂O adsorbed onto Pd/Al-CeO₂ than onto Pd/CeO₂, so Al doping to CeO₂ contributes to greater H₂O adsorption. Furthermore, electrochemical conducti

SUBMITTER: Takahashi A 

PROVIDER: S-EPMC9052117 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature