DataVXAdvanced Energy MaterialsPaper
journal article·2025-07

Dual Active Sites Decorated Tungsten Trioxide for Photocatalytic Methane Oxidation

Shanshan Qiu, Xiaoxin Liu, Jiacheng Liang, Yuping Wu, Lijuan Zhang, Wensheng Zhang, Yuheng Jiang, Dongxue Han, Yingying Fan, Li Niu, Zhiyong Tang

Advanced Energy Materials· Volume 15· Issue 28
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Source abstract

Abstract

Abstract Photocatalytic oxidation of methane to formaldehyde offers an appealing pathway for utilizing the abundant methane resource, nevertheless, suffering from poor formaldehyde formation rate and selectivity. Here, nickel cluster decorated tungsten trioxide of three high surface energy facets is prepared for photocatalytic methane oxidation to formaldehyde with yield rate of 3.27 mmol g−1 h−1, selectivity of 98.2% and turnover number of 20.65. The dual photohole centers of nickel cluster and lattice oxygen both could activate methane for selective formaldehyde formation. The lattice oxygen involves whole methane oxidation process on the catalyst surface based on an active site mechanism, while nickel cluster promotes formation of methyl radical and facilitates a radical mechanism in aqueous phase near the surface. These dual active sites provide an effective strategy to oxidize methane to formaldehyde under photoirradiation with water and oxygen gas.
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Research context

Catalysis & surfaces

OpenAlex topics: Catalytic Processes in Materials Science · Advanced Photocatalysis Techniques · Catalysis and Oxidation Reactions

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

Affiliations

Center for Advanced Analytical Science Guangzhou Key Laboratory of Sensing Materials and Devices Guangdong Engineering Technology Research Center for Photoelectric Sensing Materials and Devices c/o School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 P. R. China

Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China

Laboratory of Industrial Chemistry Ruhr University Bochum 44780 Bochum Germany

School of Chemical Engineering and Technology Sun Yat‐sen University Zhuhai 519082 China

Funding

National Natural Science Foundation of China · National Key Research and Development Program of China · Guangdong Provincial Department of Science and Technology · Department of Education of Guangdong Province · Guangzhou Municipal Science and Technology Bureau

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