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Ambient Synthesis of Single‐Atom Catalysts from Bulk Metal via Trapping of Atoms by Surface Dangling Bonds
Author(s) -
Qu Yunteng,
Wang Liguang,
Li Zhijun,
Li Peng,
Zhang Qinghua,
Lin Yue,
Zhou Fangyao,
Wang Huijuan,
Yang Zhengkun,
Hu Yidong,
Zhu Mengzhao,
Zhao Xuyan,
Han Xiao,
Wang Chengming,
Xu Qian,
Gu Lin,
Luo Jun,
Zheng Lirong,
Wu Yuen
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201904496
Subject(s) - materials science , dangling bond , catalysis , metal , atom (system on chip) , oxide , chemical engineering , nanotechnology , metallurgy , organic chemistry , chemistry , silicon , computer science , engineering , embedded system
Single‐atom catalysts (SACs) feature the maximum atom economy and superior performance for various catalysis fields, attracting tremendous attention in materials science. However, conventional synthesis of SACs involves high energy consumption at high temperature, complicated procedures, a massive waste of metal species, and poor yields, greatly impeding their development. Herein, a facile dangling bond trapping strategy to construct SACs under ambient conditions from easily accessible bulk metals (such as Fe, Co, Ni, and Cu) is presented. When mixing graphene oxide (GO) slurry with metal foam and drying in ambient conditions, the M 0 would transfer electrons to the dangling oxygen groups on GO, obtaining M δ+ (0 < δ < 3) species. Meanwhile, M δ+ coordinates with the surface oxygen dangling bonds of GO to form MO bonds. Subsequently, the metal atoms are pulled out of the metal foam by the MO bonds under the assistance of sonication to give M SAs/GO materials. This synthesis at room temperature from bulk metals provides a versatile platform for facile and low‐cost fabrication of SACs, crucial for their mass production and practical application in diverse industrial reactions.