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Charge Polarization from Atomic Metals on Adjacent Graphitic Layers for Enhancing the Hydrogen Evolution Reaction
Author(s) -
Zhang Longzhou,
Jia Yi,
Liu Hongli,
Zhuang Linzhou,
Yan Xuecheng,
Lang Chengguang,
Wang Xin,
Yang Dongjiang,
Huang Keke,
Feng Shouhua,
Yao Xiangdong
Publication year - 2019
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.201902107
Subject(s) - catalysis , metal , materials science , polarization (electrochemistry) , electronic structure , hydrogen , atomic layer deposition , chemical physics , chemical engineering , atomic charge , nanotechnology , layer (electronics) , chemistry , computational chemistry , metallurgy , molecule , organic chemistry , engineering
Atomic metal species‐based catalysts (AMCs) show remarkable possibilities in various catalytic reactions. The coordination configuration of the metal atoms has been widely recognized as the determining factor to the electronic structure and the catalytic activity. However, the synergistic effect between the adjacent layers of the multilayered AMCs is always neglected. We reported an atomic Co and Pt co‐trapped carbon catalyst, which exhibits a ultrahigh activity for HER in the wide range of pH ( η 10 =27 and 50 mV in acidic and alkaline media, respectively) with ultralow metal loadings (1.72 and 0.16 wt % for Co and Pt, respectively), which is much superior to the commercial Pt/C. Theoretical analysis reveals that the atomic metals on the inner graphitic layers significantly alter the electronic structure of the outmost layer, thus tailoring the HER activity. This finding arouses a re‐thinking of the intrinsic activity origins of AMCs and suggests a new avenue in the structure design of AMCs.