In situ observation of the crystal structure transition of Pt–Sn intermetallic nanoparticles during deactivation and regeneration

Ze-Qi Zhang; Yu-Chen Pei; Ming-Jun Xiao; Guowen Hu; Zhi-Peng Huang; Tao Song; Qiang Wang; Wen-Yu Huang; Yong Peng; Hao-Li Zhang

doi:10.1039/D1CC01181B

In situ observation of the crystal structure transition of Pt–Sn intermetallic nanoparticles during deactivation and regeneration†

Ze-Qi Zhang,^a Yu-Chen Pei,

^b Ming-Jun Xiao,

^a Guowen Hu,^a Zhi-Peng Huang,^a Tao Song,^a Qiang Wang,

*^a Wen-Yu Huang,

*^b Yong Peng

*^c and Hao-Li Zhang

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
E-mail: qiangwang@lzu.edu.cn, haoli.zhang@lzu.edu.cn

^b Department of Chemistry, Iowa State University, Ames, IA 50011, USA

^c Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China

Abstract

The mechanism of the deactivation and regeneration of PtSn intermetallic compound nanoparticle (iNP) catalysts was studied by in situ TEM investigation. Our study reveals the reversible dynamic structural transition of the iNPs during deactivation and regeneration, which provides a direct correlation between the atomic structure and the catalytic activity of the iNPs.

Chemical Communications

In situ observation of the crystal structure transition of Pt–Sn intermetallic nanoparticles during deactivation and regeneration†

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In situ observation of the crystal structure transition of Pt–Sn intermetallic nanoparticles during deactivation and regeneration

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