Volume 136, Issue 5 e202316888
Forschungsartikel

Enhanced Methanol Synthesis over Self-Limited ZnOx Overlayers on Cu Nanoparticles Formed via Gas-Phase Migration Route

Tongyuan Song

Tongyuan Song

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Dr. Rongtan Li

Dr. Rongtan Li

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

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Dr. Jianyang Wang

Dr. Jianyang Wang

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

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Dr. Cui Dong

Dr. Cui Dong

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

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Xiaohui Feng

Xiaohui Feng

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

University of Science and Technology of China, Hefei, 230026 China

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Prof. Yanxiao Ning

Prof. Yanxiao Ning

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Rentao Mu

Prof. Rentao Mu

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Qiang Fu

Corresponding Author

Prof. Qiang Fu

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, iChEM, Chinese Academy of Sciences, Dalian, 116023 China

Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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First published: 11 December 2023

Abstract

Supported metal catalysts are widely used for chemical conversion, in which construction of high density metal-oxide or oxide-metal interface is an important means to improve their reaction performance. Here, Cu@ZnOx encapsulation structure has been in situ constructed through gas-phase migration of Zn species from ZnO particles onto surface of Cu nanoparticles under CO2 hydrogenation atmosphere at 450 °C. The gas-phase deposition of Zn species onto the Cu surface and growth of ZnOx overlayer is self-limited under the high temperature and redox gas (CO2/H2) conditions. Accordingly, high density ZnOx-Cu interface sites can be effectively tailored to have an enhanced activity in CO2 hydrogenation to methanol. This work reveals a new route for the construction of active oxide-metal interface and classic strong metal-support interaction state through gas-phase migration of support species induced by high temperature redox reaction atmosphere.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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