Sol-gel synthesis of micro- and mesoporous silica in strong mineral acid

被引：3

作者：

Depla, Anouschka ^{[1
]}

Kirschhock, Christine ^{[1
]}

Martens, Johan ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Louvain, Belgium

来源：

SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS: PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM | 2010年 / 175卷

关键词：

amorphous silica; TEOS; TMOS; microporosity; mesoporosity; AMORPHOUS MICROPOROUS SILICA; CONTROLLED-RELEASE; OXIDES;

D O I：

10.1016/S0167-2991(10)75164-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Acid catalyzed silica sol-gel syntheses were performed using TEOS and TMOS, the corresponding alcohol solvent, a high concentration of mineral acid and a low hydrolysis ratio. The molar Si:H(2)O: solvent: acid ratios of the synthesis mixture were 1:2:3:0.35. The obtained silica materials were calcined to remove residual alkoxide groups. The nature of the mineral acid, the use of TEOS versus TMOS, and the temperature of the polymerization had a strong influence on the textural properties of the obtained silica. Distinct microporous and mesoporous materials were obtained.

引用

页码：801 / 804

页数：4

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