Preparation and Catalytic Activity of Porous Alumina by the Sol-Gel Process in the Presence of Saccharides

被引:2
|
作者
Hashidzume, Akihito [1 ]
Fujimoto, Taku [1 ]
Masaoka, Makoto [1 ]
Sanada, Yusuke [1 ]
Sato, Takahiro [1 ]
机构
[1] Osaka Univ, Grad Sch Sci, Dept Macromol Sci, Toyonaka, Osaka 5600043, Japan
关键词
Porous Alumina; Sol-Gel Process; Saccharides; Crystallinity; Porosity; Formose Reaction; MESOPOROUS ALUMINA; TEMPLATE;
D O I
10.1295/koron.67.312
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Porous alumina samples were prepared by the sol-gel process using aluminum tri-sec-butoxide in the presence of D-(+)-glucose, D-(-)-ribose, or sucrose. The crystallinity and porosity of the alumina samples obtained were controlled by changing the amount of the sugar added and the calcination temperature. The less crystalline alumina samples exhibited a higher ability of sugar adsorption and a higher catalytic activity for the formose reaction. These observations indicate that lattice defects act as strong base sites.
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页码:312 / 317
页数:6
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