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.
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收藏
页码：112 / 116
页数：5
相关论文
共 35 条
  • [1] [Anonymous], C321976 NGD
  • [2] Gel derived niobium-silicon mixed oxides: Characterization and catalytic activity for cyclooctene epoxidation
    Aronne, Antonio
    Turco, Maria
    Bagnasco, Giovanni
    Ramis, Gianguido
    Santacesaria, Elio
    Di Serio, Martino
    Marenna, Elisa
    Bevilacqua, Maria
    Cammarano, Claudia
    Fanelli, Esther
    [J]. APPLIED CATALYSIS A-GENERAL, 2008, 347 (02) : 179 - 185
  • [3] Sol-gel synthesis and structural characterization of niobium-silicon mixed-oxide nanocomposites
    Aronne, Antonio
    Marenna, Elisa
    Califano, Valeria
    Fanelli, Esther
    Pernice, Pasquale
    Trifuoggi, Marco
    Vergara, Alessandro
    [J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2007, 43 (02) : 193 - 204
  • [4] *ASTM, D80382 ASTM
  • [5] Babich M.A., 2010, THESIS BETHESDA
  • [6] Biermann U, 2000, ANGEW CHEM INT EDIT, V39, P2206, DOI 10.1002/1521-3773(20000703)39:13<2206::AID-ANIE2206>3.0.CO
  • [7] 2-P
  • [8] Epoxidation of unsaturated fatty esters over large-pore Ti-containing molecular sieves as catalysts: Important role of the hydrophobic-hydrophilic properties of the molecular sieve
    Camblor, MA
    Corma, A
    Esteve, P
    Martinez, A
    Valencia, S
    [J]. CHEMICAL COMMUNICATIONS, 1997, (08) : 795 - 796
  • [9] Surface characterization of monoclinic ZrO2 .1. Morphology, FTIR spectral features, and computer modelling
    Cerrato, G
    Bordiga, S
    Barbera, S
    Morterra, C
    [J]. APPLIED SURFACE SCIENCE, 1997, 115 (01) : 53 - 65
  • [10] Grafting of titanium alkoxides on high-surface SiO2 support:: An advanced technique for the preparation of nanostructured TiO2/SiO2 catalysts
    Cozzolino, M.
    Di Serio, M.
    Tesser, R.
    Santacesaria, E.
    [J]. APPLIED CATALYSIS A-GENERAL, 2007, 325 (02) : 256 - 262
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