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Research Article

Boosting propane dehydrogenation of defective S-1 stabilized single-atom Pt and ZnO catalysts via coordination environment regulation

Fuwen Yang1, Jie Zhang1( ), Jinwei Chen1,2, Gang Wang1, Tong Yu1, Qian Li1, Zongbo Shi3, Qiushi Sun3, Runsheng Zhuo1,3, Ruilin Wang1,2( )
College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China
REZEL Catalysts Corporation, Shanghai 200120, China
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Graphical Abstract

ZnO nanoclusters were served as anchoring sites to stabilize the isolated Pt atoms. Isolated Pt atom with electron-rich state and the optimized coordination environment contributed to promoting the C3H8 activation and C3H6 desorption during propane dehydrogenation.

Abstract

Pt single atoms catalysts with precise coordination environment and high stability are expected to achieve high performance of propane dehydrogenation (PDH). In this work, an innovative synthetic strategy is proposed to construct the S-1@0.1Pt9Zn@DPS-1 nanocomposite as a highly efficient PDH catalyst. Defect engineering is applied to induce the formation of defective porous silicalite-1 (DPS-1), which is favorable for achieving the uniformly distributed ZnO nanoclusters. The ZnO nanoclusters were further served as anchoring sites to stabilize the isolated Pt atoms. The structural characterization revealed that penta-O coordinated Pt single atom coupled with ZnO nanoclusters decorated on the DPS-1. Moreover, the atomically dispersed Pt atoms with the ideal coordination environment could act as the predominant active sites for PDH process. As expected, the optimal S-1@0.1Pt9Zn@DPS-1 catalyst delivered an excellent PDH performance (propane conversion of 40.7%, propylene selectivity of 97.5%) and good cycling regeneration stability. This work provides a new way for improving the activity and stability of catalysts in the field of industrial catalysts.

Keywords

defect engineeringsingle platinum atomcoordination environmentpropane dehydrogenationpropylene

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Nano Research
Volume 17 Issue 7,
July 2024
Pages 5884-5896
DOI: 10.1007/s12274-024-6574-9
Cite this article:
Yang F, Zhang J, Chen J, et al. Boosting propane dehydrogenation of defective S-1 stabilized single-atom Pt and ZnO catalysts via coordination environment regulation. Nano Research, 2024, 17(7): 5884-5896. https://doi.org/10.1007/s12274-024-6574-9
Topics:
Catalysis Catalyst activityCatalystsEnergy utilizationGas industryNanocatalystsPetrochemicals

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Received: 30 November 2023
Revised: 18 February 2024
Accepted: 19 February 2024
Published: 12 April 2024
© Tsinghua University Press 2024
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