Catalytic Kinetics of Different Types of Surface Atoms on Shaped Pd Nanocrystals

Tao Chen; Sheng Chen; Yuwei Zhang; Yifeng Qi; Yuzhou Zhao; Weilin Xu; Jie Zeng

doi:10.1002/anie.201509165

Catalytic Kinetics of Different Types of Surface Atoms on Shaped Pd Nanocrystals

Angew Chem Int Ed Engl. 2016 Jan 26;55(5):1839-43. doi: 10.1002/anie.201509165. Epub 2016 Jan 6.

Authors

Tao Chen^{1

2}, Sheng Chen³, Yuwei Zhang¹, Yifeng Qi³, Yuzhou Zhao³, Weilin Xu⁴, Jie Zeng⁵

Affiliations

¹ State Key Laboratory of Electroanalytical Chemistry and, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun, 130022, P.R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ Hefei National Laboratory for Physical Sciences at the Microscale and Collaborative Innovation Center of Suzhou Nano Science and Technology, Center of Advanced Nanocatalysis (CAN-USTC) and, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
⁴ State Key Laboratory of Electroanalytical Chemistry and, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun, 130022, P.R. China. weilinxu@ciac.ac.cn.
⁵ Hefei National Laboratory for Physical Sciences at the Microscale and Collaborative Innovation Center of Suzhou Nano Science and Technology, Center of Advanced Nanocatalysis (CAN-USTC) and, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China. zengj@ustc.edu.cn.

PMID: 26791885
DOI: 10.1002/anie.201509165

Abstract

To understand the catalytic properties or roles of different types of surface atoms on metal nanocatalysts, the catalytic kinetics and dynamics of the different types of surface atoms (plane and edge) were revealed for the first time by a statistical quantitative deconvolution of observables obtained from traditional single-molecule nanocatalysis of Pd nanocrystals.It was found that the edge and plane of Pd nanocubes show similar size-dependent product formation processes, but inverse product dissociation processes. This work helps push the traditional single-molecule nanocatalysis method towards the sub-particle level.

Keywords: fluorescence microscopy; nanocatalysis; nanocrystals; single molecules.

Publication types

Research Support, Non-U.S. Gov't