Crystal phase-selective synthesis of intermetallic palladium borides and their phase-regulated (electro)catalytic properties

Zhenyu Li; Linmin Zhao; Hui Chen; Xiao Liang; Xuan Ai; Zhoubing Xie; Xiaotian Li; Feng Yang; Hongyang Liu; Xiaoxin Zou

doi:10.1039/D1CY02112E

Crystal phase-selective synthesis of intermetallic palladium borides and their phase-regulated (electro)catalytic properties†

Zhenyu Li,‡^ab Linmin Zhao,‡^c Hui Chen,^a Xiao Liang,^a Xuan Ai,

^a Zhoubing Xie,^a Xiaotian Li,

^b Feng Yang,

^d Hongyang Liu

*^c and Xiaoxin Zou

*^a

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* Corresponding authors

^a State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
E-mail: xxzou@jlu.edu.cn

^b College of Materials Science and Engineering, Jilin University, Changchun 130022, China

^c Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
E-mail: liuhy@imr.ac.cn

^d Department of Chemistry, Southern University of Science and Technology, Shenzhen, China

Abstract

Three crystal phases of Pd–B intermetallics, namely, Pd₆B, Pd₅B₂ and Pd₂B, are synthesized, and their phase-dependent catalytic activities toward electrochemical water splitting and Suzuki coupling reactions are studied. In both reactions, their catalytic activities are found to increase in the order Pd, Pd₆B, Pd₅B₂ and Pd₂B. This activity trend is strongly associated with the Pd(d)–B(s,p) orbital hybridization-regulated surface adsorption properties.

Catalysis Science & Technology

Crystal phase-selective synthesis of intermetallic palladium borides and their phase-regulated (electro)catalytic properties†

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Crystal phase-selective synthesis of intermetallic palladium borides and their phase-regulated (electro)catalytic properties

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