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

[1] APPLICATION OF FUNCTIONALIZED POLYMERS IN ORGANIC-SYNTHESIS [J].

AKELAH, A ;

SHERRINGTON, DC .

CHEMICAL REVIEWS, 1981, 81 (06) :557-587

[2] Template synthesis of polyaniline/Pd nanoparticle and its catalytic application [J].

Amaya, Toru ;

Saio, Daisuke ;

Hirao, Toshikazu .

TETRAHEDRON LETTERS, 2007, 48 (15) :2729-2732

[3]

AMOLD U, 2001, J MOL CATAL A-CHEM, V149, P165

[4]

Bckvall J.-E., 2004, MODERN OXIDATION MET

[5] Solid-supported reagent strategies for rapid purification of combinatorial synthesis products [J].

Booth, RJ ;

Hodges, JC .

ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (01) :18-26

[6] STRUCTURE AND PROPERTIES OF POLY(ACRYLIC ACID)-DOPED POLYANILINE [J].

CHEN, SA ;

LEE, HT .

MACROMOLECULES, 1995, 28 (08) :2858-2866

[7] Polyaniline nanofibers prepared by dilute polymerization [J].

Chiou, NR ;

Epstein, AJ .

ADVANCED MATERIALS, 2005, 17 (13) :1679-+

[8] Preparation, characterization and catalytic properties of polyaniline-supported metal complexes [J].

Choudary, Boyapati M. ;

Roy, Moumita ;

Roy, Sarabindu ;

Kantam, M. Lakshmi ;

Sreedhar, Bojja ;

Kumar, Karasala Vijay .

ADVANCED SYNTHESIS & CATALYSIS, 2006, 348 (12-13) :1734-1742

[9] Polyaniline supported cobalt(II) catalyst: Oxidation of alkenes with molecular oxygen [J].

Das, BC ;

Iqbal, J .

TETRAHEDRON LETTERS, 1997, 38 (07) :1235-1238

[10] Cobalt(II)-catalyzed oxidation of alcohols into carboxylic acids and ketones with hydrogen peroxide [J].

Das, S ;

Punniyamurthy, T .

TETRAHEDRON LETTERS, 2003, 44 (32) :6033-6035

← 1 2 3 4 5 6 →