Dehydrogenation of Methylcyclohexane over Pt/TiO2 Catalyst

被引：49

作者：

Nagatake, Satoshi ^{[1
]}

Higo, Takuma ^{[1
]}

Ogo, Shuhei ^{[1
]}

Sugiura, Yukihiro ^{[1
,2
]}

Watanabe, Ryo ^{[3
]}

Fukuhara, Choji ^{[3
]}

Sekine, Yasushi ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

[2] JX Nippon Oil & Energy Corp, Cent Tech Res Lab, 8 Chidoricho, Yokohama, Kanagawa, Japan

[3] Shizuoka Univ, Grad Sch Integrated Sci & Engn, Dept Engn,Appl Chem & Biochem Engn Course, Naka Ku, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328561, Japan

来源：

CATALYSIS LETTERS | 2016年 / 146卷 / 01期

关键词：

Organic hydride; Methylcyclohexane; Dehydrogenation; Pt/TiO2; Electronic state; METAL-SUPPORT INTERACTIONS; NEGATIVE OXIDATION-STATES; AROMATIC-HYDROCARBONS; RH/TIO2; CATALYSTS; HYDROGEN STORAGE; PLATINUM; KINETICS; DEACTIVATION; TOLUENE; ADSORPTION;

D O I：

10.1007/s10562-015-1623-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 H-2 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 Pt-0 because of the electron donation from TiOx, and the toluene adsorption to Pt on TiO2 was weakened. [GRAPHICS] .

引用

页码：54 / 60

页数：7

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