Reactant adsorption modulation by Fe and K in Pt catalyst for highly effective CO preferential oxidation in practical conditions

Jianlin Cao, Xiaoqian Zhang, Xinxin Ou,Tao Liu,Tao Xing,Zhi Li,Xin Zhou,Hao Yan,Yibin Liu,Xiang Feng,Yongxiao Tuo,Chaohe Yang,De Chen

Chemical Engineering Journal（2022）

引用 12|浏览2

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摘要

•Fe and K were introduced into Pt/MOR catalysts to modulate the reactants adsorption in CO-PROX.•1Pt0.1 K/Fe-MOR achieves 100% CO conversion and 60–70% CO2 selectivity within 130–200 °C.•Fe improves the CO conversion by providing more oxygen vacancies to activate O2.•K promotes the CO2 selectivity by enhancing CO adsorption and weakening H2 adsorption on Pt.

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关键词

CO preferential oxidation,High CO2 selectivity,High temperature window,Platinum catalyst,Adsorption properties

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