Novel sea urchin-like polyaniline microspheres-supported molybdenum catalyst: Preparation, characteristic and functionality

被引：19

作者：

Ding, Hangjun ^{[1
]}

Wang, Ge ^{[1
]}

Yang, Mu ^{[1
]}

Luan, Yi ^{[1
]}

Wang, Yingnan ^{[1
]}

Yao, Xingxiong ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2009年 / 308卷 / 1-2期

关键词：

Polyaniline microspheres; Support; Heterogeneous catalyst; Molybdenum; Epoxidation; OLEFIN EPOXIDATION; OXIDATION; ALKENES; NANOFIBERS; PEROXIDES; MECHANISM; ALCOHOLS; COMPLEX; COMBINATORIAL; PALLADIUM;

D O I：

10.1016/j.molcata.2009.03.038

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：

Novel heterogeneous molybdenum catalysts were successfully synthesized using sea Urchin-like polyaniline (PANI) hollow microspheres constructed with their own oriented nanofibers arrays as Support. This catalyst was successfully applied for efficient epoxidation of olefins using tert-butylhydroperoxide (TBHP) as oxidant. The catalytic activity of the PAN] microspheres-supported catalysts (95% conversion)was found to be higher than that observed for its corresponding homogenous catalyst (85% conversion) and the conventional PANI-supported catalyst (65% conversion). The immobilized catalyst showed a stable catalytic activity in manifold reuses. It was found that the special micro/nanoscale spherical morphology plays an important role for the enhancement of activities of the polymer-supported heterogeneous catalyst. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：25 / 31

页数：7

共 55 条

[51] Advances in homogeneous and heterogeneous catalytic asymmetric epoxidation [J].

Xia, QH ;

Ge, HQ ;

Ye, CP ;

Liu, ZM ;

Su, KX .

CHEMICAL REVIEWS, 2005, 105 (05) :1603-1662

[52] A simple method to synthesize sea urchin-like polyaniline hollow spheres [J].

Yang, Mu ;

Yao, XingXiong ;

Wang, Ge ;

Ding, Hangjun .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2008, 324 (1-3) :113-116

[53] Molybdenum containing surface complex for olefin epoxidation [J].

Yang, QH ;

Copéret, C ;

Li, C ;

Basset, JM .

NEW JOURNAL OF CHEMISTRY, 2003, 27 (02) :319-323

[54] Polyaniline nanofibers: chemical synthesis using surfactants [J].

Zhang, XY ;

Manohar, SK .

CHEMICAL COMMUNICATIONS, 2004, (20) :2360-2361

[55] Synthesis of polyaniline nanofibers by "nanofiber seeding" [J].

Zhang, XY ;

Goux, WJ ;

Manohar, SK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (14) :4502-4503

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