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Surface Chemistry and Catalytic Reactivity of a Nanodiamond in the Steam-Free Dehydrogenation of Ethylbenzene

Authors

  • Prof. Jian Zhang ,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)
    2. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany), Fax: (+49) 30-8413-4401
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  • Prof. Dang Sheng Su ,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)
    2. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany), Fax: (+49) 30-8413-4401
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  • Raoul Blume,

    1. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany), Fax: (+49) 30-8413-4401
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  • Prof. Robert Schlögl,

    1. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany), Fax: (+49) 30-8413-4401
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  • Dr. Rui Wang,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)
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  • Prof. Xiangguang Yang,

    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry (China)
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  • Dr. Andreja Gajović

    1. Molecular Physics Laboratory, Rudjer Boskovic Institute, Zagreb (Croatia)
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  • We thank the European Union (CANAPE project), the Max Planck Society (EnerChem project), and the Croatian Ministry of Science Education and Sport (098-0982904-2898) for financial support. J. Zhang thanks NSFC (No. 50921004) and the Institute of Metal Research (O9NBA111A1) for basic funding. We gratefully acknowledge BESSY for XPS tests, J. Kröhnert, D. Wang, Profs. F. Jentoft, F. S. Xiao, M. Muhler, C. Hébert, and P. McGuiness for helpful discussions and assistance.

Abstract

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Hard core: A hybrid catalyst system for dehydrogenation of ethylbenzene comprises nanoparticles consisting of nanodiamond cores and highly curved, defective graphene shells (see picture). The system exhibits high catalytic activity and selectivity over a long period of time. In contrast to industrial K-promoted Fe catalysts, steam decoking of the catalyst is not required.

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