%D 2024
%N 42
%T Subsurface Single-atom Catalyst Enabled by Mechanochemical Synthesis for Oxidation Chemistry
%V 63
%A Xuze Guan
%A Rong Han
%A Hiroyuki Asakura
%A Bolun Wang
%A Lu Chen
%A Jay Hon Cheung Yan
%A Shaoliang Guan
%A Luke Keenan
%A Shusaku Hayama
%A Matthijs A van Spronsen
%A Georg Held
%A Jie Zhang
%A Hao Gu
%A Yifei Ren
%A Lun Zhang
%A Zhangyi Yao
%A Yujiang Zhu
%A Anna Regoutz
%A Tsunehiro Tanaka
%A Yuzheng Guo
%A Feng Ryan Wang
%O Copyright © 2024 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
%C Germany
%X Single-atom catalysts have garnered significant attention due to their exceptional atom utilization and unique properties. However, the practical application of these catalysts is often impeded by challenges such as sintering-induced instability and poisoning of isolated atoms due to strong gas adsorption. In this study, we employed the mechanochemical method to insert single Cu atoms into the subsurface of Fe2O3 support. By manipulating the location of single atoms at the surface or subsurface, catalysts with distinct adsorption properties and reaction mechanisms can be achieved. It was observed that the subsurface Cu single atoms in Fe2O3 remained isolated under both oxidation and reduction environments, whereas surface Cu single atoms on Fe2O3 experienced sintering under reduction conditions. The unique properties of these subsurface single-atom catalysts call for innovations and new understandings in catalyst design.
%J Angewandte Chemie International Edition
%L discovery10194980
%I Wiley