Novel mesoporous polyoxometalate hybrid catalysts for heterogeneous oxidation of thioethers

被引：17

作者：

Karimi, Z. ^{[1
]}

Mahjoub, A. R. ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Chem, Tehran 14115175, Iran

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 11期

基金：

美国国家科学基金会;

关键词：

Mesoporous silica; Functionalized; Preyssler; Dawson; Heterogeneous oxidation catalyst; Thioethers; SELECTIVE OXIDATION; HETEROPOLY ANIONS; MOLECULAR-SIEVES; SILICA; ACID; SULFOXIDES; CARBON; SULFIDES; SURFACE; PHASE;

D O I：

10.1016/j.catcom.2011.03.015

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：

K(6)P(2)W(18)O(62) and K(14)[NaP(5)W(30)O(110)] polyoxometalate salts are synthesized and immobilized within MCM-48, SBA-3, SBA-15 and NH(3)(+) functionalized mesoporous silicas. The newly designed hybrid materials are studied as catalysts for oxidation of thioethers. Preyssler complex is found to be a more active catalyst compared to its Dawson analog. Texture and chemical composition of the silica framework is shown to have indispensable effect on oxidation efficiency, stability, and reusability of catalysts. Catalysts with larger pores are proved to be more proper for the oxidation of relatively large thioethers and functionalization improves catalyst's properties. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：984 / 988

页数：5

共 36 条

[1] A HETEROPOLYANION WITH FIVEFOLD MOLECULAR SYMMETRY THAT CONTAINS A NONLABILE ENCAPSULATED SODIUM-ION - THE STRUCTURE AND CHEMISTRY OF [NAP5W30O110]14- [J].

ALIZADEH, MH ;

HARMALKER, SP ;

JEANNIN, Y ;

MARTINFRERE, J ;

POPE, MT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (09) :2662-2669

[2] Heteropolyacid-based catalysis. Dawson acid for MTBE synthesis in gas phase [J].

Baronetti, G ;

Briand, L ;

Sedran, U ;

Thomas, H .

APPLIED CATALYSIS A-GENERAL, 1998, 172 (02) :265-272

[3] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].

BARRETT, EP ;

JOYNER, LG ;

HALENDA, PP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) :373-380

[4] Oxyfunctionalisation of adamantane using inorganic-organic hybrid materials based on isopoly and heteropoly anions: Kinetics and mechanistic studies [J].

Bordoloi, Ankur ;

Vinu, Ajayan ;

Halligudi, S. B. .

APPLIED CATALYSIS A-GENERAL, 2007, 333 (01) :143-152

[5]

Burrage S, 2000, CHEM-EUR J, V6, P1455, DOI 10.1002/(SICI)1521-3765(20000417)6:8<1455::AID-CHEM1455>3.0.CO

[6]

2-M

[7] APPLICATIONS OF SULFOXIDES TO ASYMMETRIC-SYNTHESIS OF BIOLOGICALLY-ACTIVE COMPOUNDS [J].

CARRENO, MC .

CHEMICAL REVIEWS, 1995, 95 (06) :1717-1760

[8] Small-angle X-ray scattering and electron microscopy investigation of silica and carbon replicas with ordered porosity [J].

Ehrburger-Dolle, F ;

Morfin, I ;

Geissler, E ;

Bley, F ;

Livet, F ;

Vix-Guterl, C ;

Saadallah, S ;

Parmentier, J ;

Reda, M ;

Patarin, J ;

Iliescu, M ;

Werckmann, J .

LANGMUIR, 2003, 19 (10) :4303-4308

[9] Recent developments in the synthesis and utilization of chiral sulfoxides [J].

Fernández, I ;

Khiar, N .

CHEMICAL REVIEWS, 2003, 103 (09) :3651-3705

[10] Carbon powder and fiber-supported polyoxometalate catalytic materials. Preparation, characterization, and catalytic oxidation of dialkyl sulfides as mustard (HD) analogues [J].

Gall, RD ;

Hill, CL ;

Walker, JE .

CHEMISTRY OF MATERIALS, 1996, 8 (10) :2523-2527

← 1 2 3 4 →