Congratulations to Yi Xie on Publishing a Research Article in the Progress in Natural Science: Materials International

Promoted reverse water-gas shift activity on transition metals-incorporated iron-cerium oxide solid solution catalyst

Earth-abundant Fe oxide-based catalysts, renowned for their broad-spectrum light absorption, hold promise for driving the photothermal RWGS reaction—a promising strategy for converting CO2 emissions into valuable carbonaceous feedstocks. However, traditional Fe oxide-based catalysts exhibit limited activity due to their constrained H2 dissociation and CO2 activation capabilities, especially at lower temperatures. This study introduces Co, Ni, and Cu-doped Ce0.7Fe0.3O2 solid-solution catalysts. Incorporation of Fe into CeO2 enhances CO2 dissociation while preserving extensive light adsorption up to 2500 nm. Notably, Co doping enhances H2 dissociation and promotes CO2 activation. Subsequent investigations reveal that a catalyst doped with 5 mol% Co exhibits the highest photothermal catalytic activity, attaining a ∼50 % CO2 conversion under 300 W Xe-lamp irradiation with excellent selectivity and stability over 10 reaction cycles spanning 10 h. These results underscore the potential of designing CeO2-based solid solution catalysts with synergistic metal dopants for efficient and selective CO2 conversion under moderate conditions.

The related research findings were published in Progress in Natural Science: Materials International under the title "Promoted reverse water-gas shift activity on transition metals-incorporated iron-cerium oxide solid solution catalyst".

Article link: https://www.sciencedirect.com/science/article/pii/S1002007124001229