The Promotion of Vanadia-Alumina and Vanadia-Titania Catalysts by Surface Molybdenum Oxide for the Propane ODH Reaction

被引：6
|
作者：
Nayak, Sudhir C. [1 ]
Shee, Debaprasad [1 ]
Deo, Goutam [1 ]
机构：
[1] Indian Inst Technol Kanpur, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India
来源：
CATALYSIS LETTERS | 2010年 / 136卷 / 3-4期
关键词：
Vanadium oxide; Molybdenum oxide; Alumina; Titania; Promotion; Propane ODH; OXIDATIVE DEHYDROGENATION REACTIONS; V2O5/TIO2; CATALYSTS; STRUCTURAL-CHARACTERIZATION; PARAMETER-ESTIMATION; SUPPORT; ETHANE; RAMAN; V2O5/AL2O3; ADDITIVES; BUTANE;
D O I：
10.1007/s10562-010-0322-3
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：
Supported vanadia-alumina and vanadia-titania catalysts with and without molybdena modifier were synthesized, characterized and studied for the propane ODH reaction. In these catalysts the surface molybdena species is present as a non-interacting phase and possesses a much lower activity compared to the surface vanadia species. The propane ODH reaction studies reveal that molybdena modified vanadia catalysts are more active and selective for propene formation compared to the unmodified vanadia catalysts. This promotional effect appears to be due to the increase in propane adsorption in the presence of molybdena as observed by FTIR spectroscopy.
引用
收藏
页码：271 / 278
页数：8
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