Supported indium oxide as novel efficient catalysts for dehydrogenation of propane with carbon dioxide

被引：89

作者：

Chen, Miao ^{[1
]}

Xu, Jie ^{[1
]}

Liu, Yong-Mei ^{[1
]}

Cao, Yong ^{[1
]}

He, He-Yong ^{[1
]}

Zhuang, Ji-Hua ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2010年 / 377卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Indium oxide; Dehydrogenation; Propane; Propylene; Carbon dioxide; GALLIUM-LOADED CATALYSTS; OXIDATIVE DEHYDROGENATION; SELECTIVE REDUCTION; CO2; ALUMINA; ETHANE; ETHYLBENZENE; GA2O3-AL2O3; PROPENE; IN2O3;

D O I：

10.1016/j.apcata.2010.01.011

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：

In2O3-MOx binary mixed metal oxide catalysts (M: Al, Zn, Zr, Ti, Fe, Mg, Si, and Ce) prepared by a coprecipitation or sol-gel method have been tested for the dehydrogenation of propane to propylene in the presence of carbon dioxide. Several techniques including N-2 adsorption/desorption, X-ray diffraction, H-2-temperature-programmed reduction and X-ray photoelectron spectroscopy were applied to characterize the physicochemical properties of the as-synthesized materials. Catalytic tests showed that all In-containing samples were active in the CO2-promoted dehydrogenation of propane with good propylene selectivity. Among the In2O3-MOx catalysts tested, the In2O3-Al2O3 sample containing a 20 mol% indium content showed the highest dehydrogenation activity with superior long-term stability. The specific interaction between In2O3 and Al2O3 leading to a high component dispersion is suggested to play a key role in regulating the redox and structural properties of surface indium species, which makes the In2O3-Al2O3 composite highly active and stable for the reaction. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：35 / 41

页数：7

共 37 条

[31] Behavior of active sites on Cr-MCM-41 catalysts during the dehydrogenation of propane with CO2 [J].