Au/TiO2 for Ethane Dehydrogenation: Effect of Silica Doping

被引：10

作者：

Xie, Qi ^{[1
]}

Lei, Tianqi ^{[1
]}

Miao, Changxi ^{[2
]}

Hua, Weiming ^{[2
]}

Yue, Yinghong ^{[1
]}

Gao, Zi ^{[1
]}

机构：

[1] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200438, Peoples R China

[2] Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China

来源：

CATALYSIS LETTERS | 2020年 / 150卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Ethane dehydrogenation; Au catalyst; TiO2; SiO2; doping; OXIDATIVE DEHYDROGENATION; CO OXIDATION; CATALYST; ETHYLENE; SUPPORT; NANOCATALYST; OXIDE; NO;

D O I：

10.1007/s10562-020-03126-x

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：

Dehydrogenation of ethane to ethylene over silica-doped TiO2 supported Au catalysts was investigated. The silica doping of TiO2 support greatly improved the dehydrogenation activity of Au supported catalysts, which can be ascribed to the reduced Au particle size. An ethane conversion of 15.8% and ethylene selectivity of 94.8% can be obtained over the catalyst with SiO2 doping of 20 wt%. However, the activity would begin to decrease with further increasing of SiO2 content, since the proportion of Au delta+ species decreased monotonically with SiO2 amount, which may also play an important role in ethane dehydrogenation. [GRAPHICS] .

引用

页码：2013 / 2020

页数：8

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