Electronic Metal-Support Interactions Between CuO and ZnO for CuO/ZnO Catalysts With Enhanced CO Oxidation Activity

Overview

Journal Front Chem

Specialty Chemistry

Date 2022 Jun 1

PMID 35646814

Authors

Shuai Lyu

YuHua Zhang

Zhe Li

Xinyue Liu

Zhenfang Tian

Chengchao Liu

Jinlin Li

Li Wang

Affiliations

Soon will be listed here.

Abstract

Metal-support interaction has been one of the main topics of research on supported catalysts all the time. However, many other factors including the particle size, shape and chemical composition can have significant influences on the catalytic performance when considering the role of metal-support interaction. Herein, we have designed a series of CuO/ZnO catalysts as examples to quantitatively investigate how the metal-support interaction influences the catalytic performance. The electronic metal-support interactions between CuO and ZnO were regulated successfully without altering the structure of CuO/ZnO catalyst. Due to the lower work function of ZnO, electrons would transfer from ZnO to CuO, which is favorable for the formation of higher active Cu species. Combined experimental and theoretical calculations revealed that electron-rich interface result from interaction was favorable for the adsorption of oxygen and CO oxidation reaction. Such strategy represents a new direction to boost the catalytic activity of supported catalysts in various applications.

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