Reactivity of Ga2O3 Clusters on Zeolite ZSM-5 for the Conversion of Methanol to Aromatics

被引：66
|
作者：
Lopez-Sanchez, Jose A. [1 ]
Conte, Marco [1 ]
Landon, Phil [1 ]
Zhou, Wu [2 ]
Bartley, Jonathan K. [1 ]
Taylor, Stuart H. [1 ]
Carley, Albert F. [1 ]
Kiely, Christopher J. [2 ]
Khalid, Karim [3 ]
Hutchings, Graham J. [1 ]
机构：
[1] Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Cardiff CF10 3AT, S Glam, Wales
[2] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA
[3] SABIC Technol & Innovat, Riyadh 11551, Saudi Arabia
来源：
CATALYSIS LETTERS | 2012年 / 142卷 / 09期
关键词：
Gallium oxide; ZSM-5; Methanol; Aromatics; GALLIUM; AROMATIZATION; HYDROCARBONS; CATALYSTS; MFI; PROPANE; ETHANE; GA;
D O I：
10.1007/s10562-012-0869-2
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：
Composites of Ga2O3 clusters and zeolite ZSM-5 were evaluated for the transformation of methanol to hydrocarbons. Comparison of the activity with ZSM-5 showed that the Ga2O3 clusters are responsible for the enhanced selectivity to aromatics via contact synergy, thus showing the importance of non framework gallium species for this reaction. TEM analysis of fresh and spent catalysts allowed the identification of the formation of carbonaceous products at the Ga2O3/zeolite interface region, and this interface is also the probable location of the catalyst active sites.
引用
收藏
页码：1049 / 1056
页数：8
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