Design of bifunctionalized hexagonal mesoporous silicas for selective oxidation of cyclohexane

被引：21

作者：

Chen, Chen ^{[1
]}

Zhou, Lipeng ^{[1
]}

Zhang, Qiaohong ^{[1
]}

Ma, Hong ^{[1
]}

Miao, Hong ^{[1
]}

Xu, Jie ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key lab Catalysis, Dalian 116023, Peoples R China

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 21期

关键词：

D O I：

10.1088/0957-4484/18/21/215603

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Bifunctionalized hexagonal mesoporous silicas, CoPh-HMS, were designed and successfully synthesized by a one-step co-condensation route at ambient temperature. This new material possesses the typical wormhole structure of HMS material. Co2+ ions were incorporated into the frameworks in tetrahedral coordination along with phenyl groups immobilized on the surface, confirmed by a careful spectroscopic ( Fourier transform infrared, ultraviolet - visible and Si-29 magic-angle spinning nuclear magnetic resonance) study. It was used in the liquid-phase selective oxidation of cyclohexane with molecular oxygen under solvent-free conditions, and showed excellent performance. The results indicate the potential for intentional design of the catalytic environment at a nanometre level with the combination of transition metal incorporation and surface organofunctionalization for mesoporous siliceous materials.

引用

页数：5

共 22 条

[1]

TEMPLATING OF MESOPOROUS MOLECULAR-SIEVES BY NONIONIC POLYETHYLENE OXIDE SURFACTANTS [J].