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La-doped Al2O3 supported Au nanoparticles: highly active and selective catalysts for PROX under PEMFC operation
Qingquan Lin1, Botao Qiao, Yanqiang Huang
1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS), Dalian 116023, China. taozhang@dicp.ac.cn aqwang@dicp.ac.cn.
Abstract:
La-doped γ-Al2O3 supported Au catalysts show high activity and selectivity for the PROX reaction under PEMFC operation conditions. The superior performance is attributed to the formation of LaAlO3, which suppresses H2 oxidation and strengthens CO adsorption on Au sites, thereby improving competitive oxidation of CO at elevated temperature.
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