Guan, Xuze;
Han, Rong;
Asakura, Hiroyuki;
Wang, Bolun;
Chen, Lu;
Yan, Jay Hon Cheung;
Guan, Shaoliang;
... Wang, Feng Ryan; + view all
(2024)
Subsurface Single-Atom Catalyst Enabled by Mechanochemical Synthesis for Oxidation Chemistry.
Angewandte Chemie
, 136
(42)
, Article e202410457. 10.1002/ange.202410457.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Subsurface Single-Atom Catalyst Enabled by Mechanochemical Synthesis for Oxidation Chemistry |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/ange.202410457 |
| Publisher version: | https://doi.org/10.1002/ange.202410457 |
| Language: | English |
| Additional information: | © 2024 The Authors. Angewandte Chemie published by Wiley-VCH GmbH 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. |
| Keywords: | single-atom catalysts, ammonia oxidation, ball milling, surface chemistry, heterogeneous catalysis |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10205810 |
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