Isomerizations of a Pt4 cluster revealed by spatiotemporal microscopic analysis

被引:28
|
作者
Imaoka, Takane [1 ,2 ,3 ]
Toyonaga, Tetsuya [1 ]
Morita, Mari [2 ]
Haruta, Naoki [2 ]
Yamamoto, Kimihisa [1 ,2 ]
机构
[1] Tokyo Inst Technol, Inst Innovat Res, Lab Chem & Life Sci CLS, Yokohama, Kanagawa 2268503, Japan
[2] Tokyo Inst Technol, ERATO JST Yamamoto Atom Hybrid Project, Yokohama, Kanagawa 2268503, Japan
[3] PRESTO JST, Kawaguchi, Saitama 3320012, Japan
关键词
PLATINUM CLUSTERS; FLUXIONALITY; CATALYSIS; DYNAMICS; ATOMS;
D O I
10.1039/c9cc00530g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We now report the first direct observation of the fluxional nature in which the four-atomic platinumcluster (Pt-4) randomly walks through several isomers. Time-lapse analysis by a Cs-corrected transmission electron microscope allowed us to acquire the atomic coordinates at a sub-angstrom space resolution and 0.2 s time resolution for each cluster isomer. The analysis revealed that the isomerization follows a simple first-order kinetic model.
引用
收藏
页码:4753 / 4756
页数:4
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