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Dynamic Structural Evolution of CeO2 in CuO−CeO2 Catalyst Revealed by In Situ Spectroscopy
ChemCatChem ( IF 3.8 ) Pub Date : 2023-08-25 , DOI: 10.1002/cctc.202300894
Mei-Yao Wu 1 , Bei-Bei Wang 2 , Wei-Wei Wang 3 , Fan Yang 4 , Chun-Jiang Jia 5
ChemCatChem ( IF 3.8 ) Pub Date : 2023-08-25 , DOI: 10.1002/cctc.202300894
Mei-Yao Wu 1 , Bei-Bei Wang 2 , Wei-Wei Wang 3 , Fan Yang 4 , Chun-Jiang Jia 5
Affiliation
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The structural evolution of CeO2 in CeO2−CuO catalyst was captured by in situ technique. Under reductive conditions, CeO2 was exposed to the catalyst surface to form an inverse CeOx/Cu interface with a high WGS activity. After the removing of the reductive condition, CeO2 in the catalyst will undergo a surface reconstruction, which is manifested as oxygen migration and oxidation of Cu.
中文翻译:
原位光谱揭示 CuO−CeO2 催化剂中 CeO2 的动态结构演化
通过原位技术捕获了CeO 2 -CuO催化剂中CeO 2的结构演变。在还原条件下,CeO 2暴露于催化剂表面,形成具有高WGS活性的反CeO x /Cu界面。去除还原条件后,催化剂中的CeO 2会发生表面重构,表现为氧迁移和Cu的氧化。
更新日期:2023-08-25
中文翻译:

原位光谱揭示 CuO−CeO2 催化剂中 CeO2 的动态结构演化
通过原位技术捕获了CeO 2 -CuO催化剂中CeO 2的结构演变。在还原条件下,CeO 2暴露于催化剂表面,形成具有高WGS活性的反CeO x /Cu界面。去除还原条件后,催化剂中的CeO 2会发生表面重构,表现为氧迁移和Cu的氧化。
