Amorphous Carbon Bearing Sulfonic Acid Groups in Mesoporous Silica as a Selective Catalyst

被引：130

作者：

Nakajima, Kiyotaka ^{[1
]}

Okamura, Mai ^{[1
]}

Kondo, Junko N. ^{[2
]}

Domen, Kazunari ^{[4
]}

Tatsumi, Takashi ^{[2
]}

Hayashi, Shigenobu ^{[3
]}

Hara, Michikazu ^{[1
,5
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[3] Natl Inst Adv Ind Sci & Technol, Res Inst Instrumentat Frontier, Tsukuba, Ibaraki 3058565, Japan

[4] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[5] Kanagawa Acad Sci & Technol, Takatsu Ku, Kawasaki, Kanagawa 2130012, Japan

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 01期

基金：

日本学术振兴会;

关键词：

ION-EXCHANGE-RESINS; STRONG SOLID-ACID; TRIMETHYLPHOSPHINE OXIDE; GREEN CHEMISTRY; P-31; NMR; ZEOLITES; DIMERIZATION; SITES; COPOLYMER; TRIBLOCK;

D O I：

10.1021/cm801441c

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：

Sulfonic acid group (SO3H)-bearing amorphous carbon/mesoporous silica composites were studied for use as solid acid catalysts. Sugar-derived amorphous carbon with SO3H cannot catalyze hydrophobic acid-catalyzed reactions, such as the dimerization of alpha-methyl styrene, because of the small surface area. However, SO3H-bearing sugar-derived amorphous carbon supported on mesoporous silica exhibits remarkable catalytic performance for the dimerization of alpha-methylstyrene. Under optimal conditions, the selectivity of the composite catalysts for unsaturated dimers exceeds 98%. Structural and reaction analyses revealed that SO3H-bearing carbon particles with large surface areas are formed in the mesopores and prevent intramolecular Friedel-Crafts alkylation, resulting in high catalytic activity.

引用

页码：186 / 193

页数：8

共 37 条

[1] Origins, current status, and future challenges of green chemistry [J].