Cobalt-containing mesoporous silicas - Preparation,characterization and catalytic activity in toluene hydrogenation

被引：32

作者：

Szegedi, Agnes ^{[1
]}

Popova, Margarita ^{[2
]}

Mavrodinova, Vesselina ^{[2
]}

Minchev, Christo ^{[2
]}

机构：

[1] Hungarian Acad Sci, Chem Res Ctr, Inst Catalysis & Surface Chem, H-1525 Budapest, Hungary

[2] Bulgarian Acad Sci, Inst Organ Chem, BU-1113 Sofia, Bulgaria

来源：

APPLIED CATALYSIS A-GENERAL | 2008年 / 338卷 / 1-2期

基金：

匈牙利科学研究基金会;

关键词：

mesoporous materials; CoMCM-41; CoSBA-15; toluene hydrogenation;

D O I：

10.1016/j.apcata.2007.12.017

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：

The effect of post synthesis modification was studied on cobalt impregnated mesoporous materials having different textural properties. The supports were SBA-15 and MCM-41 with conventional and spherical morphology. The modified materials were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), FT-IR spectroscopy of adsorbed probe molecules (pyridine and CO) and toluene hydrogenation as a catalytic test reaction. It was found that the amount of surface silanol groups of the mesoporous supports and the variation of the pretreatment procedure have a notable influence on the nature of the cobalt oxide species formed upon the precursor decomposition. Formation Of CO3O4, CoO and Co2+ species in different ratio, depending on the mesoporous support, was established. The strength of interaction with the support determines the dispersion, reducibility and the catalytic activity in toluene hydrogenation. (c) 2008 Elsevier BY All rights reserved.

引用

页码：44 / 51

页数：8

共 50 条

[21] CHARACTERIZATION OF VANADIUM-CONTAINING MESOPOROUS SILICAS
GONTIER, S
TUEL, A
MICROPOROUS MATERIALS, 1995, 5 (03): : 161 - 171
[22] Synthesis, characterization and catalytic activity of Titania and Vanadium grafted and substituted on mesoporous silicas
Williams, T.
Beltramini, J. N.
Lu, G. Q.
RECENT PROGRESS IN MESOSTRUCTURED MATERIALS, PROCEEDINGS OF THE 5TH INTERNATIONAL MESOSTRUCTURED MATERIALS SYMPOSIUM - IMMS2006, 2007, 165 : 135 - 138
[23] CO2 hydrogenation over cobalt-containing catalysts
Suslova, E. V.
Chernyak, S. A.
Egorov, A. V.
Savilov, S. V.
Lunin, V. V.
KINETICS AND CATALYSIS, 2015, 56 (05) : 646 - 654
[24] Characterization and catalytic properties of tin-containing mesoporous silicas prepared by different methods
Wang, XX
Xu, HB
Fu, XZ
Liu, P
Lefebvre, F
Basset, JM
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 238 (1-2) : 185 - 191
[25] Spectroscopic characterization of cobalt-containing solid catalysts
Finocchio, E
Montanari, T
Resini, C
Busca, G
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2003, 204 : 535 - 544
[26] CO2 hydrogenation over cobalt-containing catalysts
E. V. Suslova
S. A. Chernyak
A. V. Egorov
S. V. Savilov
V. V. Lunin
Kinetics and Catalysis, 2015, 56 : 646 - 654
[27] Stability and microwave synthesis of cobalt-containing mesoporous molecular sieves
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
不详
Kuei Suan Jen Hsueh Pao, 2008, SUPPL. (6-11):
[28] Hydrothermal stability and catalytic activity of aluminum-containing mesoporous ethane-silicas
Yang, QH
Li, Y
Zhang, L
Yang, J
Liu, J
Li, C
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (23): : 7934 - 7937
[29] Nickel-containing MCM-41 materials, influence of the preparation procedures on the catalytic activity in toluene hydrogenation
Szegedi, A
Mavrodinova, V
Popova, M
Minchev, C
REACTION KINETICS AND CATALYSIS LETTERS, 2006, 87 (02): : 405 - 412
[30] Nickel-containing MCM-41 materials, influence of the preparation procedures on the catalytic activity in toluene hydrogenation
Ágnes Szegedi
Vesselina Mavrodinova
Margarita Popova
Reaction Kinetics and Catalysis Letters, 2006, 87 : 405 - 412

← 1 2 3 4 5 →