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Dehydrogenation of Methylcyclohexane over Pt/TiO2 Catalyst

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Abstract

Methylcyclohexane (MCH) is expected as a hydrogen carrier. Dehydrogenation of MCH was conducted over supported Pt catalysts at 623 K. Pt/TiO2 showed high stability for dehydrogenation and good resistance for coke formation. The partial pressure dependence of MCH, toluene, and H2 was investigated for Pt/TiO2 and Pt/Al2O3 catalysts, which showed different tendencies for toluene partial pressure. The reaction order of toluene partial pressure for Pt/TiO2 was almost zero, but that for Pt/Al2O3 was a negative value. Toluene inhibited the Pt/Al2O3 catalytic activity, but that of Pt/TiO2 was unaffected. The SMSI effect was confirmed on Pt/TiO2 by CO chemisorption measurement. Pt on TiO2 became an electron-rich state compared to Pt0 because of the electron donation from TiOx, and the toluene adsorption to Pt on TiO2 was weakened.

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Acknowledgments

A part of this work was supported by Cross-ministerial Strategic Innovation Promotion Program (SIP) Japan.

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Authors and Affiliations

  1. Department of Applied Chemistry, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan

    Satoshi Nagatake, Takuma Higo, Shuhei Ogo, Yukihiro Sugiura & Yasushi Sekine

  2. Central Technical Research Laboratory, JX Nippon Oil & Energy Corporation, 8, Chidoricho, Naka-ward, Yokohama, Japan

    Yukihiro Sugiura

  3. Applied Chemistry and Biochemical Engineering Course, Department of Engineering, Graduate School of Integrated Science and Engineering, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, Shizuoka, 432-8561, Japan

    Ryo Watanabe & Choji Fukuhara

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  1. Satoshi Nagatake
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  2. Takuma Higo
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Correspondence to Yasushi Sekine.

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Nagatake, S., Higo, T., Ogo, S. et al. Dehydrogenation of Methylcyclohexane over Pt/TiO2 Catalyst. Catal Lett 146, 54–60 (2016). https://doi.org/10.1007/s10562-015-1623-3

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  • DOI: https://doi.org/10.1007/s10562-015-1623-3

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