Combined alkyl and sulfonic acid functionalization of MCM-41-type silica -: Part 1.: Synthesis and characterization

被引：256

作者：

Díaz, I ^{[1
]}

Márquez-Alvarez, C ^{[1
]}

Mohino, F ^{[1
]}

Pérez-Pariente, J ^{[1
]}

Sastre, E ^{[1
]}

机构：

[1] CSIC, Inst Catalisis & Petr Quim, Madrid 28049, Spain

来源：

JOURNAL OF CATALYSIS | 2000年 / 193卷 / 02期

关键词：

MCM-41; mesoporous acid catalysts; sulfonic acid; fatty acids; selective esterification; monoglyceride;

D O I：

10.1006/jcat.2000.2898

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：

Single-step synthesis of well-ordered MCM-41 materials containing simultaneously alkyl (methyl or propyl) and 3-mercaptopropyl groups has been carried out by hydrothermal treatment of gels containing a mixture of dodecyl and hexadecyltrimethylammonium surfactants. A wide range of synthesis conditions has been studied in order to optimize the pore arrangement and to vary the alkyl/mercaptopropyl ratio of the product. A number of characterization techniques suggest that the anchored organic fragments lined the wall channels of the MCM-41 in a close-packed configuration. The mercaptopropyl groups can be oxidized with hydrogen peroxide to sulfonic acid with a high retention of sulfur and no loss of methyl groups. (C) 2000 Academic Press.

引用

页码：283 / 294

页数：12

共 43 条

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