催化作用
面(心理学)
沉积(地质)
氧化还原
金属
纳米技术
选择性
材料科学
多相催化
协调数
化学工程
化学
无机化学
冶金
有机化学
人格
离子
古生物学
沉积物
工程类
生物
社会心理学
心理学
五大性格特征
作者
Han Yan,Hao Lei,Xuetao Qin,Jincheng Liu,Li‐Hua Cai,Sunpei Hu,Zizhen Xiao,Fei Peng,Wei-Wei Wang,Zhao Jin,Xianfeng Yi,Anmin Zheng,Chao Ma,Chun‐Jiang Jia,Jie Zeng
标识
DOI:10.1002/ange.202411264
摘要
The surface chemistry of CeO2 is dictated by the well‐defined facets, which exert great influence on the supported metal species and the catalytic performance. Here we report Pt1/CeO2 catalysts exhibiting specific structures of Pt–O coordination on different facets by using adequate preparation methods. The simple impregnation method results in Pt–O3 coordination on the predominantly exposed {111} facets, while the photo‐deposition method achieves oriented atomic deposition for Pt–O4 coordination into the “nano‐pocket” structure of {100} facets at the top. Compared to the impregnated Pt1/CeO2 catalyst showing normal redox properties and low‐temperature activity for CO oxidation, the photo‐deposited Pt1/CeO2 exhibits uncustomary strong metal‐support interaction and extraordinary high‐temperature stability. The preparation methods dictate the facet‐dependent diversity of Pt–O coordination, resulting in the further activity‐selectivity trade‐off. By applying specific preparation routes, our work provides an example of disentangling the effects of support facets and coordination environments for nano‐catalysts.
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