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Catalysts 2016, 6(1), 2; doi:10.3390/catal6010002

Phosphotungstate-Based Ionic Silica Nanoparticles Network for Alkenes Epoxidation

The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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Academic Editor: Michalis Konsolakis
Received: 28 October 2015 / Revised: 13 December 2015 / Accepted: 14 December 2015 / Published: 24 December 2015
(This article belongs to the Special Issue Surface Chemistry and Catalysis)
View Full-Text   |   Download PDF [2268 KB, uploaded 24 December 2015]   |  

Abstract

An inorganic-organic porous silica network catalyst was prepared by linking silica nanoparticles using ionic liquid and followed by anion-exchange with phosphotungstate. Characterization methods of FT-IR, TG, SEM, TEM, BET, etc., were carried out to have a comprehensive insight into the catalyst. The catalyst was used for catalyzing cyclooctene epoxidation with high surface area, high catalytic activity, and convenient recovery. The conversion and selectivity of epoxy-cyclooctene could both reach over 99% at 70 °C for 8 h using hydrogen peroxide (H2O2) as an oxidant, and acetonitrile as a solvent when the catalyst was 10 wt. % of cyclooctene. View Full-Text
Keywords: silica nanoparticles; ionic liquid; network; phosphotungstate; catalyst; epoxidation silica nanoparticles; ionic liquid; network; phosphotungstate; catalyst; epoxidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, X.; Jiang, P.; Wang, Z.; Huang, Y. Phosphotungstate-Based Ionic Silica Nanoparticles Network for Alkenes Epoxidation. Catalysts 2016, 6, 2.

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