Single Ce atom-assisted oxygen vacancies as active and stable sites for CO2 conversion

Nature Communications 2026 Open access

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Authors: S Y Li, Na Li, Tian Qin, Zhanglong Guo, Yuan Lyu, Riguang Zhang, Xi Liu, Liwei Chen, Siglinda Perathoner, Gabriele Centi, Yuefeng Liu
DOI: 10.1038/s41467-026-74091-z
Cited by: 1
References: 53

Abstract

Oxygen vacancies are often considered the active sites for CO2 conversion, but their engineering to enhance activity and stability has been scarcely investigated, especially at high reaction tempeture (≥600 °C) or under severe stressing conditions (i.e., in presence of H2S). We demonstrate that oxygen vacancies in defective MgO nanocrystals (less than 20 nanometres) can be significantly promoted by the addition of atomically dispersed Ce atoms anchored at these defective MgO sites. These catalysts combine high performance in CO2 conversion with exceptional stability even in the presence of 300 ppm H2S. For a loading

Fields of Study & Subjects

Chemical Looping and Thermochemical Processes Catalysts for Methane Reforming CO2 Sequestration and Geologic Interactions

Publication details

Journal / source
Nature Communications
Publisher
Springer Science and Business Media LLC
Volume
17
Issue
1
Publication date
15 June 2026
Language
EN