New Nb-containing SBA-3 mesoporous materials - Synthesis, characteristics, and catalytic activity in gas and liquid phase oxidation

被引：45
作者：
Kilos, Beata
Tuel, Alain
Ziolek, Maria
Volta, Jean-Claude
机构：
[1] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France
[2] Adam Mickiewicz Univ Poznan, Fac Chem, PL-60780 Poznan, Poland
来源：
CATALYSIS TODAY | 2006年 / 118卷 / 3-4期
关键词：
NbSBA-3; XRD; N-2; adsorption/desorption; UV-vis; FTIR plus pyridine; ODH of propane; epoxidation of cyclohexene;
D O I：
10.1016/j.cattod.2006.07.029
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The synthesis and characterization of NbSBA-3 mesostructured materials - the first hexagonally ordered mesoporous molecular sieves without extra framework Nb-oxide phase - are described in this paper. The effect of the synthesis medium (basic or acidic) and Nb source in the efficiency of niobium incorporation is discussed. A higher Nb content in the final material is reached when Nb(V) chloride is used instead of Nb(V) ammonium trisoxalate complex in the synthesis. All NbSBA-3 materials prepared in this work are very attractive catalysts in ODH of propane and epoxidation of cyclohexene and more effective than the corresponding NbMCM-41 and NbSBA-15 catalysts. (c) 2006 Elsevier B.V. All rights reserved.
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页码：416 / 424
页数：9
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