Dual-atom Pt heterogeneous catalyst with excellent catalytic performances for the selective hydrogenation and epoxidation

Shubo Tian, Bingxue Wang, Wanbing Gong, Zizhan He, Qi Xu, Wenxing Chen, Qinghua Zhang, Youqi Zhu, Jiarui Yang, Qiang Fu (), Chun Chen, Yuxiang Bu, Lin Gu, Xiaoming Sun, Huijun Zhao, Dingsheng Wang () and Yadong Li
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Shubo Tian: Beijing University of Chemical Technology
Bingxue Wang: Shandong University
Wanbing Gong: Institute of Solid State Physics, Chinese Academy of Sciences
Zizhan He: Shandong University
Qi Xu: Tsinghua University
Wenxing Chen: School of Materials Science and Engineering, Beijing Institute of Technology
Qinghua Zhang: Chinese Academy of Sciences
Youqi Zhu: School of Materials Science and Engineering, Beijing Institute of Technology
Jiarui Yang: Tsinghua University
Qiang Fu: Shandong University
Chun Chen: Institute of Solid State Physics, Chinese Academy of Sciences
Yuxiang Bu: Shandong University
Lin Gu: Chinese Academy of Sciences
Xiaoming Sun: Beijing University of Chemical Technology
Huijun Zhao: Institute of Solid State Physics, Chinese Academy of Sciences
Dingsheng Wang: Tsinghua University
Yadong Li: Tsinghua University

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Atomically monodispersed heterogeneous catalysts with uniform active sites and high atom utilization efficiency are ideal heterogeneous catalytic materials. Designing such type of catalysts, however, remains a formidable challenge. Herein, using a wet-chemical method, we successfully achieved a mesoporous graphitic carbon nitride (mpg-C3N4) supported dual-atom Pt2 catalyst, which exhibited excellent catalytic performance for the highly selective hydrogenation of nitrobenzene to aniline. The conversion of ˃99% is significantly superior to the corresponding values of mpg-C3N4-supported single Pt atoms and ultra-small Pt nanoparticles (~2 nm). First-principles calculations revealed that the excellent and unique catalytic performance of the Pt2 species originates from the facile H2 dissociation induced by the diatomic characteristics of Pt and the easy desorption of the aniline product. The produced Pt2/mpg-C3N4 samples are versatile and can be applied in catalyzing other important reactions, such as the selective hydrogenation of benzaldehyde and the epoxidation of styrene.

Date: 2021
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DOI: 10.1038/s41467-021-23517-x

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