State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
Proc Natl Acad Sci U S A. 2022 Apr 5;119(14):e2114639119. doi: 10.1073/pnas.2114639119. Epub 2022 Mar 29.
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-based active sites.
在这里，我们通过单分子荧光显微镜研究了单个 Pt 原子在单次周转反应分辨率下的催化行为，然后揭示了 Pt 单原子催化剂的独特催化性质以及单个 Pt 原子和 Pt 纳米颗粒之间的催化性质差异。进一步的密度泛函理论计算表明，Pt 单原子催化剂的独特催化性质本质上可以归因于基于 Pt 的活性位的独特表面性质。
