title: Direct Dehydrogenation of n-Butane Over Pt/Sn/Zn/γ-Al2O3 Nano-Catalyst: Effect of Zn Content.
abstract: A series of Pt/Sn/XZn/γ-Al2O3 nano-catalysts with different Zn content (X = 0, 0.25, 0.5, 0.75, and 1.0 wt%) were prepared by a sequential impregnation method. They were applied to the direct dehydrogenation of n-butane to n-butene and 1,3-butadiene. The effect of zinc content of Pt/Sn/XZn/γ-Al2O3 nano-catalysts on their physicochemical properties and catalytic activities in the direct dehydrogenation of n-butane was investigated. The catalytic performance of Pt/Sn/XZn/γ-Al2O3 nano-catalysts strongly depended on zinc content. Among the catalysts tested, Pt/Sn/0.5Zn/γ-Al2O3 nano-catalyst showed the best catalytic performance in terms of yield for total dehydrogenation products (TDP, n-butene and 1,3-butadiene). TPR (temperature-programmed reduction) and H2-chemisorption experiments were carried out to measure metal-support interaction and Pt surface area of the catalysts. Experimental results revealed that metal-support interaction and Pt surface area of the catalysts were closely related to the catalytic performance. Yield for TDP increased with increasing metal-support interaction and Pt surface area of the catalysts.
authors.forename: Hyun
authors.initials: H
authors.lastname: Seo
authors.forename: Jong Kwon
authors.initials: JK
authors.lastname: Lee
authors.forename: Ung Gi
authors.initials: UG
authors.lastname: Hong
authors.forename: Gle
authors.initials: G
authors.lastname: Park
authors.forename: Yeonshick
authors.initials: Y
authors.lastname: Yoo
authors.forename: Jinsuk
authors.initials: J
authors.lastname: Lee
authors.forename: Hosik
authors.initials: H
authors.lastname: Chang
authors.forename: In Kyu
authors.initials: IK
authors.lastname: Song