Sol-gel synthesis, characterization and catalytic activity of γ-alumina with bimodal mesopore distribution

被引：4
|
作者：
Vinogradov, Vladimir V. [1 ]
Vinogradov, Alexander V. [1 ]
Kraev, Anton S. [1 ]
Agafonov, Alexander V. [1 ]
Kessler, Vadim G. [2 ]
机构：
[1] Russian Acad Sci, Inst Solut Chem, Ivanovo 153045, Russia
[2] Swedish Univ Agr Sci SLU, Bioctr, Dept Chem, S-75007 Uppsala, Sweden
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2013年 / 68卷 / 02期
关键词：
Sol-gel synthesis; Dimethyl ether; Template; Mesopore; DIMETHYL ETHER; METHANOL DEHYDRATION; SYNTHESIS GAS; IRON-OXIDE; CONVERSION; GAMMA-AL2O3; ACID; DME;
D O I：
10.1007/s10971-013-3099-1
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, boehmite sols were used for preparation of mesoporous gamma-alumina with bimodal mesopore distribution. Superfine nanospheres of poly(methyl methacrylate) (PMMA) prepared by water based emulsion polymerization method were used as a template. Nitrogen sorption revealed that aluminas prepared using this approach demonstrated bimodal mesopore size distribution with maxima at 3.8 and 25.7 nm, respectively. Catalytic tests showed that bimodal mesopore distribution within gamma-Al2O3 prepared with PMMA nanospheres as a template provides improved catalytic activity in the methanol dehydration reaction.
引用
收藏
页码：155 / 161
页数：7
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