Dehydrogenation of Methylcyclohexane over Pt/TiO2-Al2O3 Catalysts

Dehydrogenation of Methylcyclohexane over Pt/TiO2-Al2O3 Catalysts

Dehydrogenation of methylcyclohexane (MCH) was conducted over Pt/TiO2-Al2O3 catalysts, showing high activity, selectivity, stability, and high mechanical strength. XPS measurements revealed that the binding energy of Pt 4d5/2 shifted to a lower energy by adding TiO2 due to electron donation from TiO...

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Veröffentlicht in:Chemistry letters 2017, Vol.46 (11), p.1601-1604
Hauptverfasser: Sugiura, Yukihiro, Nagatsuka, Tomomi, Kubo, Kouichi, Hirano, Yuichiro, Nakamura, Akitoshi, Miyazawa, Kazunori, Iizuka, Yusuke, Furuta, Satoshi, Iki, Hideshi, Higo, Takuma, Sekine, Yasushi
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum oxide
Catalysis
Catalysts
Dehydrogenation
Methylcyclohexane
Selectivity
Titanium dioxide
Toluene
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Zusammenfassung:Dehydrogenation of methylcyclohexane (MCH) was conducted over Pt/TiO2-Al2O3 catalysts, showing high activity, selectivity, stability, and high mechanical strength. XPS measurements revealed that the binding energy of Pt 4d5/2 shifted to a lower energy by adding TiO2 due to electron donation from TiO2. Formed toluene released immediately on electron-rich Pt before further decomposition to form methane and coke thanks to π-coordination. This phenomenon improved the catalytic performance, ensuring high selectivity, and durability for methylcyclohexane dehydrogenation.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.170722