Inorganic-organic hybrid materials based on functionalized silica and carbon: a comprehensive understanding toward the structural property and catalytic activity difference over mesoporous silica and carbon supports

TitleInorganic-organic hybrid materials based on functionalized silica and carbon: a comprehensive understanding toward the structural property and catalytic activity difference over mesoporous silica and carbon supports
Publication TypeJournal Article
Year of Publication2008
AuthorsBordoloi, A, Mathew, NT, Lefebvre, F, Halligudi, SB
JournalMicroporous and Mesoporous Materials
Volume115
Issue3
Pagination345-355
Date PublishedNOV
Type of ArticleArticle
ISSN1387-1811
Keywords2-Methylnaphthalene, inorganic-organic hybrid materials, mesoporous carbon, mesoporous organosilica, Oxidation
Abstract

Inorganic-organic hybrid materials based on functionalized silica and carbon were synthesized by anchoring molybdovanadophosphoric acid (H-5[PMo10V2O40]center dot 32.5H(2)O) onto amine-functionalized SBA-15, ethane-bridged SBA-15 and mesoporous carbon, respectively. Small angle X-ray diffraction, N-2 sorption analysis, HRTEM, SEM, IFT-IR, CP-MAS NMR were used to diagnose the mesoporous structure of inorganic-organic hybrid materials. The structural integrity of molybdovanadophosphoric acid has been found to be retained after immobilization over mesoporous materials. These inorganic-organic hybrid materials were tested in the environmentally friendly oxidation of 2-methylnaphthalene (2MN) with 30%, aqueous hydrogen peroxide. Molybdovanadophosphoric acid containing mesoporous organosilica hybrid material (ethane-bridged SBA-15) exhibited higher catalytic activities in the oxidation of 2MN to give a clean product 2-methy-1,4-naphthoquinone (menadione vitamin K3 precursor), because of the improved hydrophobicity of the material. The correlation between structural properties and catalytic activities of these hybrid materials has been well addressed in our present studies. (c) 2008 Elsevier Inc. All rights reserved.

DOI10.1016/j.micromeso.2008.02.005
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.349
Divison category: 
Catalysis and Inorganic Chemistry