Valuation of Nb2O5-SiO2 catalysts in soybean oil epoxidation

被引：55

作者：

Di Serio, Martino ^{[1
]}

Turco, Rosa ^{[1
]}

Pernice, Pasquale ^{[2
]}

Aronne, Antonio ^{[2
]}

Sannino, Filomena ^{[3
]}

Santacesaria, Elio ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Chim, NICL, Naples, Italy

[2] Univ Naples Federico II, Dipartimento Ingn Mat & Prod, Naples, Italy

[3] Univ Naples Federico II, Fac Sci Biotecnol, Dipartimento Sci Suolo Pianta Ambiente & Prod Ani, Naples, Italy

来源：

CATALYSIS TODAY | 2012年 / 192卷 / 01期

关键词：

Nb2O5-SiO2; catalysts; Epoxidation; Hydrogen peroxide; Soybean oil; MESOPOROUS MOLECULAR-SIEVES; UNSATURATED FATTY ESTERS; SOL-GEL SYNTHESIS; HYDROGEN-PEROXIDE; HETEROGENEOUS CATALYSTS; METHYL OLEATE; NIOBIUM; SILICA; SURFACE; BIODIESEL;

D O I：

10.1016/j.cattod.2012.03.069

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The performances of Nb2O5-SiO2 catalysts prepared by sol-gel technique in the epoxidation of soybean oil with hydrogen peroxide have been investigated. The most active catalyst showed a good activity in epoxidation reaction but also a low selectivity to epoxide. The low selectivity has been attributed to the presence on the surface besides the Lewis acid sites, that promote the epoxidation, also of strong Bronsted acid sites, that promote the reaction of ring epoxide opening by hydrolysis. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：112 / 116

页数：5

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