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Nano Research 2022, 15(12): 10029-10036 https://doi.org/10.1007/s12274-022-4650-6
Research Article | Issue | Published: 30 June 2022

Fully-exposed Pt clusters stabilized on Sn-decorated nanodiamond/graphene hybrid support for efficient ethylbenzene direct dehydrogenation

Show Author's Information Linlin Wang1,2,  Xuetao Qin3,  Ting Sun1( ),  Xiangbin Cai4,  Mi Peng3,  Zhimin Jia2,5,  Xiaowen Chen2,5,  Ning Wang4,  Jiangyong Diao2( ),  Hongyang Liu2,5( ),  Ding Ma3
Department of Chemistry, Northeastern University, Shenyang 110819, China
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Beijing National Laboratory for Molecular Engineering, College of Chemistry and Molecular Engineering and College of Engineering, BIC-ESAT, Peking University, Beijing 100871, China
Department of Physics, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China
School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
Keywords:
heterogeneous catalysis, Pt cluster, ethylbenzene dehydrogenation, fully-exposed catalyst
Topics:
Nanocatalysts
Cite this article:
Wang L, Qin X, Sun T, et al. Fully-exposed Pt clusters stabilized on Sn-decorated nanodiamond/graphene hybrid support for efficient ethylbenzene direct dehydrogenation. Nano Research, 2022, 15(12): 10029-10036. https://doi.org/10.1007/s12274-022-4650-6
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Abstract Full text Electronic supplementary material About this article

The pursuit of energy conservation and environmental protection has always been a hot topic in the catalytic fields, which is inseparable from the rational designing of efficient catalysts and an in-depth understanding of the catalytic reaction mechanism. In this work, fully-exposed Pt clusters were fabricated on the atomically dispersed Sn decorated nanodiamond/graphene (Sn-ND@G) hybrid support and employed for direct dehydrogenation (DDH) of ethylbenzene (EB) to styrene (ST). The detailed structural characterizations revealed the fully-exposed Pt clusters were stabilized on Sn-ND@G, assisted by the spatial separation of atomically dispersed Sn species. The as-prepared Pt/Sn-ND@G catalyst showed enhanced ST yield (136.2 molEB·molPt−1·h−1 EB conversion rate and 99.7% ST selectivity) and robust long-term stability at 500 °C for the EB DDH reaction, compared with the traditional ND@G supported Pt nanoparticle catalyst (Pt/ND@G). The ST prefers to desorb from the fully-exposed Pt clusters, resulting in the enhanced DDH catalytic performance of the Pt/Sn-ND@G catalyst. The present work paves a new way for designing highly dispersed and stable supported metal catalysts for DDH reactions.


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About this article

Fully-exposed Pt clusters stabilized on Sn-decorated nanodiamond/graphene hybrid support for efficient ethylbenzene direct dehydrogenation

Show Author's information Linlin Wang1,2, Xuetao Qin3, Ting Sun1( ), Xiangbin Cai4, Mi Peng3, Zhimin Jia2,5, Xiaowen Chen2,5, Ning Wang4, Jiangyong Diao2( ), Hongyang Liu2,5( ), Ding Ma3
Department of Chemistry, Northeastern University, Shenyang 110819, China
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Beijing National Laboratory for Molecular Engineering, College of Chemistry and Molecular Engineering and College of Engineering, BIC-ESAT, Peking University, Beijing 100871, China
Department of Physics, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China
School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China

Abstract

The pursuit of energy conservation and environmental protection has always been a hot topic in the catalytic fields, which is inseparable from the rational designing of efficient catalysts and an in-depth understanding of the catalytic reaction mechanism. In this work, fully-exposed Pt clusters were fabricated on the atomically dispersed Sn decorated nanodiamond/graphene (Sn-ND@G) hybrid support and employed for direct dehydrogenation (DDH) of ethylbenzene (EB) to styrene (ST). The detailed structural characterizations revealed the fully-exposed Pt clusters were stabilized on Sn-ND@G, assisted by the spatial separation of atomically dispersed Sn species. The as-prepared Pt/Sn-ND@G catalyst showed enhanced ST yield (136.2 molEB·molPt−1·h−1 EB conversion rate and 99.7% ST selectivity) and robust long-term stability at 500 °C for the EB DDH reaction, compared with the traditional ND@G supported Pt nanoparticle catalyst (Pt/ND@G). The ST prefers to desorb from the fully-exposed Pt clusters, resulting in the enhanced DDH catalytic performance of the Pt/Sn-ND@G catalyst. The present work paves a new way for designing highly dispersed and stable supported metal catalysts for DDH reactions.

Keywords: heterogeneous catalysis, Pt cluster, ethylbenzene dehydrogenation, fully-exposed catalyst

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Publication history
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Acknowledgements

Publication history

Received: 28 March 2022
Revised: 09 June 2022
Accepted: 10 June 2022
Published: 30 June 2022
Issue date: December 2022

Copyright

© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

This work was supported by the National Key Research and Development Program of China (No. 2021YFA1502802), the National Natural Science Foundation of China (Nos. 21961160722, 92145301, U21B2092, 22072162, and 91845201), the Liaoning Revitalization Talents Program (No. XLYC1907055), Natural Science Foundation of Liaoning Province (No. 2021-MS-001), IMR Innovation Fund (No. 2022-PY05), Dalian National Lab for Clean Energy (No. DNL Cooperation Fund 202001), and the Sinopec China. N. W. hereby acknowledges the funding support from the Research Grants Council of Hong Kong (Nos. C6021-14E, N_HKUST624/19, and 16306818). The XAS experiments were conducted in Shanghai Synchrotron Radiation Facility (SSRF).

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