journal article·2025-04-07

Tandem Oxygen Activation for Efficient Aerobic Oxidation: The Underlying Function of Oxide in Metal/Oxide Catalysts

Wenbin Jiang, Jingcong Hu, Shuaikang Sang, Canyu Hu, Di Wu, Jun Ma, Jerry Zhi Xiong Heng, Mingsheng Zhang, Wanbing Gong, Hengjie Liu, Ming Lin, Ming Zhao, Ran Long, Enyi Ye, Yujie Xiong

ACS Materials Letters· Volume 7· Issue 4
Publisher page

Abstract

Metal/oxide composites represent efficient catalysts for oxygen activation and aerobic oxidation, with the active site typically recognized as the metal/oxide interface. The oxide distant from the interface (remote oxide), however, is often considered catalytically inert. Here, through rational catalyst design, we demonstrate using selective alcohol oxidation as a model reaction that the remote oxide can actively participate in catalysis by working in tandem with the interface, enabling sequential activation of oxygen into hydroxyl radicals for efficient oxidation. Isotope labeling studies reveal that the interface catalyzes alcohol oxidation to produce aldehyde and H 2 O 2 in the presence of O 2 . The accumulated H 2 O 2 is subsequently activated on remote oxide to generate hydroxyl radicals, initiating an additional oxidation pathway that accounts for 40.8% of the total alcohol conversion. This work highlights the importance of simultaneous surface and interface structure optimization for advanced metal/oxide catalysts.
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Research context

OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Oxidative Organic Chemistry Reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hefei National Research Center for Physical Sciences at the Microscale, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory

University of Science and Technology of China

Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore

Suzhou Institute for Advanced Research

Department of Materials Science and Engineering

National University of Singapore

Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science

Anhui Normal University

Funding

National Key Research and Development Program of China · West Light Foundation, Chinese Academy of Sciences · Youth Innovation Promotion Association of the Chinese Academy of Sciences · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Natural Science Foundation of Anhui Province · Chinese Academy of Sciences

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