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Simple “Directional Trimming” Strategy Engineered Platinum Atomic Clusters with Controllable Coordination Numbers for Efficient Hydrogen Evolution
Author(s) -
Hao Fengkun,
Zhong Jing,
Hao Fengqian,
Ke Shaorou,
Li Yanghong,
Mao Zhengyi,
He Yunhu,
Gao Tengshijie,
Wang Linlin,
Li Shuohan,
Fang Minghao,
Huang Zhaohui,
Chang Xiaoxue,
Shao Ruiwen,
Lu Jian,
Min Xin
Publication year - 2025
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202504828
Subject(s) - catalysis , trimming , overpotential , cluster (spacecraft) , coordination number , nanotechnology , chemical physics , platinum , chemistry , materials science , combinatorial chemistry , computational chemistry , computer science , organic chemistry , ion , operating system , electrode , electrochemistry , programming language
Abstract The coordination number (CN) in atomic cluster (AC) catalysts endows their catalytic performance with flexible tunability. However, the quantitative relationship between the CN and catalytic activity of atomic cluster catalysts remains ambiguity. Herein, inspired by the gardeners trimming plants branches to obtain ornamental value shape, we propose a “directional trimming” strategy to obtain a series of AC catalysts with wide range of Cl CN and establish an inverted volcano curve to explain the effect of CN on hydrogen evolution reaction (HER). Moreover, Pt/CB‐90 (moderate Cl CN of 3.7) exhibits the lowest overpotential of 22.94 mV at 10 mA cm −2 and outstanding mass activity (25 times to commercial Pt/C). This proposed synthesis strategy fully utilizes the precursor atoms and is widely applicable. The reaction liquid can be reused up to 20 times to obtain 1130 mg catalysts without introducing any other chemicals. Additionally, theoretical calculations highlight the appropriate Cl CN benefits the HER on Pt 2 ACs. This fundamental understanding of the role of CN in catalytic activity offers valuable guidance to promote performance in various catalytic reactions.