Revealing the catalytic kinetics and dynamics of individual Pt atoms at the single-molecule level.

Liu, Xiaodong; Ge, Xin; Cao, Jing; Xiao, Yi; Wang, Yan; Zhang, Wei; Song, Ping; Xu, Weilin · Proc Natl Acad Sci U S A · 2022

basic_science · Level V

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Abstract

SignificanceHere, with single-molecule fluorescence microscopy, we study the catalytic behavior of individual Pt atoms at single-turnover resolution, and then reveal the unique catalytic properties of Pt single-atom catalyst and the difference in catalytic properties between individual Pt atoms and Pt nanoparticles. Further density functional theory calculation indicates that unique catalytic properties of Pt single-atom catalyst could be attributed intrinsically to the unique surface properties of Pt<sub>1</sub>-based active sites.

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