Oxide Support Inert in Its Interaction with Metal but Active in Its Interaction with Oxide and Vice Versa

Dong, Cui; Li, Rongtan; Qu, Zhenping; Fan, Yamei; Wang, Jianyang; Du, Xiangze; Liu, Chengxiang; Feng, Xiaohui; Ning, Yanxiao; Mu, Rentao; Fu, Qiang; Bao, Xinhe

doi:10.1021/jacs.4c17075

articleJournal of the American Chemical SocietyApr 9, 2025Closed access

Oxide Support Inert in Its Interaction with Metal but Active in Its Interaction with Oxide and Vice Versa

CDCui Dong RLRongtan Li ZQZhenping Qu YFYamei Fan JWJianyang Wang

Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +5 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

Supported metal or oxide nanostructures catalyze many industrial reactions, where the interaction of metal or oxide overlayer with its support can have a substantial influence on catalytic performance. In this work, we show that small Pt species can be well stabilized on CeO2 under both H2-containing and O2-containing atmospheres but sintering happens on SiO2, indicating that CeO2 is active whereas SiO2 is inert in Pt–support interaction. On the other hand, Co oxide (CoOx) supported on SiO2 can maintain a low-valence Co2+ state both in air and during CO2 hydrogenation to CO, indicating a strong interaction of CoOx with SiO2. However, the CoOx overlayer has a weak interaction with CeO2 and is easily reduced to…

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Topics & keywords

Topics

Keywords

Chemistry
Versa
Oxide
Inert
Metal
Inorganic chemistry
Organic chemistry
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