Dynamic Structural Evolution of CeO2 in CuO−CeO2 Catalyst Revealed by In Situ Spectroscopy,ChemCatChem

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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

Affiliation

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 CeO_x/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

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