Please use this identifier to cite or link to this item: https://doi.org/10.1002/cctc.201100457
Title: Antisolvent precipitation for the synthesis of monodisperse mesoporous niobium oxide spheres as highly effective solid acid catalysts
Authors: Li, C.C.
Dou, J.
Chen, L.
Lin, J.
Zeng, H.C. 
Keywords: Alkylation
Heterogeneous catalysis
Hydrolysis
Mesoporous materials
Niobium
Issue Date: Oct-2012
Citation: Li, C.C., Dou, J., Chen, L., Lin, J., Zeng, H.C. (2012-10). Antisolvent precipitation for the synthesis of monodisperse mesoporous niobium oxide spheres as highly effective solid acid catalysts. ChemCatChem 4 (10) : 1675-1682. ScholarBank@NUS Repository. https://doi.org/10.1002/cctc.201100457
Abstract: We have developed a low-cost reaction protocol to synthesize mesoporous Nb 2O 5-based solid acid catalysts with external shape control. In the synthesis, monodisperse glycolated niobium oxide spheres (GNOS) were prepared by means of a simple antisolvent precipitation approach and subsequently converted to mesoporous niobium oxide spheres (MNOS) with a large surface area of 312m 2g -1 by means of the hydrothermal treatment. The antisolvent acetone used to obtain GNOS was recovered through distillation at high purity. The obtained mesoporous MNOS were functionalized further with sulfate anions at different temperatures or incorporated with tungstophosphoric acid to obtain recyclable solid acid catalysts. These MNOS-based catalysts showed excellent performance in a wide range of acid-catalyzed reactions, such as Friedel-Crafts alkylation, esterification, and hydrolysis of acetates. As they are monodisperse spheres with diameters in the submicrometer range, the catalysts can be easily separated and reused. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: ChemCatChem
URI: http://scholarbank.nus.edu.sg/handle/10635/88548
ISSN: 18673880
DOI: 10.1002/cctc.201100457
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

19
checked on Dec 11, 2018

WEB OF SCIENCETM
Citations

18
checked on Dec 11, 2018

Page view(s)

56
checked on Dec 14, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.