Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (4): 624-629.doi: 10.1007/s40242-023-3112-3

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High-entropy Metal Oxide-polyoxometalate-palladium Sub-1 nm Nanowires for Semi-hydrogenation Reaction of Alkynes

LIU Junli1, NIE Siyang2, WU Liang3, WANG Xun2   

  1. 1. Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P.R. China;
    2. Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China;
    3. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
  • Received:2023-04-30 Online:2023-08-01 Published:2023-07-18
  • Contact: WANG Xun, NIE Siyang E-mail:wangxun@mail.tsinghua.edu.cn;siyang_nie@mail.tsinghua.edu.cn
  • Supported by:
    This work was supported by the National Key R&D Program of China (No.2017YFA0700101), the National Natural Science Foundation of China (No.22035004), and the Xplorer Prize.

Abstract: Palladium and palladium-based nanomaterials have shown great catalytic potential in the semi-hydrogenation reaction of alkynes. However, the scarcity of noble metals, harsh reaction conditions, selectivity and over reduction of products limit the development of these kinds of catalysts. It is a smart strategy to fabricate the single-site palladium-based catalyst by introducing palladium into one-dimensional(1D) hybrid sub-1 nm nanowires (SNWs). Herein, we successfully synthesized several kinds of high-entropy metal oxide-polyoxometalate-Pd(HEO-POM-Pd) SNWs, which as the catalysts performed excellent catalytic activity and stereoselectivity in the semi-hydrogenation reaction of alkynes at room temperature, providing a promising avenue to design and prepare noble metal single-site catalysts at the sub-1 nm scale.

Key words: High-entropy oxide, Polyoxometalate, Palladium, Sub-1 nm nanowire, Semi-hydrogenation reaction