Central Doping of a Foreign Atom into the Silver Cluster for Catalytic Conversion of CO2 toward C-C Bond Formation
Central Doping of a Foreign Atom into the Silver Cluster for Catalytic Conversion of CO2 toward C-C Bond Formation
复制标题
将外来原子中心掺杂到银簇中催化 CO2 转化为 C-C 键形成
DOI：
10.1002/anie.201805319
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发表时间：
2018-07-26
影响因子：
16.6
通讯作者：
Zhu, Yan
中科院分区：
文献类型：
--
作者：
Liu, Yuanyuan;Chai, Xiaoqi;Zhu, Yan
具有确切原子数的簇在催化中特别令人感兴趣。它们的催化行为可以通过添加或去除单个原子而潜在地改变。现在探索了在具有25个原子的Ag簇的核心中掺杂单个外来原子（Au、Pd和Pt）对催化性能的影响，其中外来原子被24个Ag原子（Au@Ag-24、Pd@Ag-24和Pt@Ag-24）保护。在Ag-25簇合物中中心掺杂单个原子对CO2与末端炔通过C-C键形成羧基化反应生成丙炔酸的催化性能有显著影响。这些研究表明，簇合物催化剂的催化性能可以通过远离活性中心的单个原子的细微改变而显著改变。
Clusters with an exact number of atoms are of particular interest in catalysis. Their catalytic behaviors can be potentially altered with the addition or removal of a single atom. Now the effects of doping with a single foreign atom (Au, Pd, and Pt) into the core of an Ag cluster with 25 atoms on the catalytic properties are explored, where the foreign atom is protected by 24Ag atoms (Au@Ag-24, Pd@Ag-24, and Pt@Ag-24). The central doping of a single atom into the Ag-25 cluster has a substantial influence on the catalytic performance in the carboxylation reaction of CO2 with terminal alkyne through C-C bond formation to produce propiolic acid. These studies reveal that the catalytic properties of the cluster catalysts can be dramatically changed with the subtle alteration by a single atom away from the active sites.