文献类型：期刊文献

中文题名：Surface pits stabilized Au catalyst for low-temperature CO oxidation

作者：Ya-Feng Cai[1];Chen Fei[1];Cheng Zhang[1];Jie Yang[1];Li Wang[1];Wang-Cheng Zhan[1];Yang-Long Guo[1];Xiao-Ming Cao[1];Xue-Qing Gong[1];Yun Guo[1]

机构：[1]Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai,200237,China

年份：2022

卷号：41

期号：9

起止页码：3060

中文期刊名：Rare Metals

外文期刊名：稀有金属（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；PubMed;

基金：financially supported by the National Key Research and Development Program of China(No.2016YFC0204300);the National Natural Science Foundation of China(Nos.21571061,21333003 and 21908079);Pujiang Program of the Shanghai Municipal Human Resources and Social Security Bureau(No.18PJD011)。

语种：英文

中文关键词：Au catalyst;CeO_(2);Surface defect;Stability;CO oxidation

摘要：Development of active and stable catalysts for low-temperature CO oxidation has long been regarded as a hot topic.In this contribution,we used CeO_(2) with high-density surface pits as support to prepare an active and stable Au/CeO_(2) catalyst by an adsorption-deposition method.The obtained 0.05 wt%Au/CeO_(2)-TD(where TD represents thermal decomposition)can maintain its activity at 80℃ for more than 20 h or even after calcination at 800℃ for 2 h.The characterization results showed that the high-density surface pits on CeO_(2)-TD play a decisive role in the stabilization of Au and enhancement of the redox property.This work may provide a new strategy to improve the stability of supported metal catalysts by a simple and conventional method.