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Issue 3, 2016
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Sulfonated organosilica mesocellular foam for catalyzing bulky molecules

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Abstract

Organosilica mesocellular foam (OSMCF), a large-pore material, was successfully fabricated using 1,4-bis(triethoxysilyl)-benzene (BTEB) as a precursor, Pluronic P123 as a template, and 1,3,5-trimethylbenzene (TMB) as a swelling agent. The cell size is tailorable by changing the weight ratio of TMB to P123. Thermogravimetry (TG) analysis revealed that the material had a high thermal stability. The FT-IR spectra and chemical titration suggested that sulfonic acid might be grafted onto the OSMCF by treating with sulfuric acid (98 wt%) and potassium disulfate. After sulfonation, the large-pore acidic catalysts exhibited very high catalytic activities for bulky reactants. The catalysts were evaluated by the hydrolysis of lab-extracted natural fibers or commercial microcrystalline cellulose, and esterification of oleic acid (OA).

Graphical abstract: Sulfonated organosilica mesocellular foam for catalyzing bulky molecules

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Publication details

The article was received on 10 Nov 2015, accepted on 15 Jan 2016 and first published on 18 Jan 2016


Article type: Letter
DOI: 10.1039/C5NJ03162A
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New J. Chem., 2016,40, 1957-1961

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    Sulfonated organosilica mesocellular foam for catalyzing bulky molecules

    S. Chu, G. Cai, Z. Tan, D. Xiang and C. Xiong, New J. Chem., 2016, 40, 1957
    DOI: 10.1039/C5NJ03162A

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