• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Zhang, Wen-Bin (Zhang, Wen-Bin.) [1] | Chen, Xiao-Hui (Chen, Xiao-Hui.) [2] (Scholars:陈晓晖) | Wei, Ke-Mei (Wei, Ke-Mei.) [3]

Indexed by:

EI Scopus PKU CSCD

Abstract:

Mesoporous W-MCM-22 molecular sieves were prepared for the first time by directly hydrothermal synthesis using silica gel as the source of silicon, sodium tungstate as the tungsten source, piperidine as a structure-directing agent (SDA) and boric acid as a structure-supporting agent under dynamic state. The catalyst was characterized and analyzed by powder X-ray diffraction and UV-visible spectroscopy. The influence of tungsten content on catalytic performance for epoxidation of allyl alcohol was investigated. The catalytic performances of W-MCM-22 with different ratio of n(Si)/n(W) were compared with the zeolite of MCM-22 without adding sodium tungstate in synthesis. The results showed that the mesostructure of MCM-22 was maintained very well in W-MCM-22 as-synthesized when the ratio of n(Si)/n(W) was above 40 in the gel. The tungsten atoms entered the framework dispersively, and there was no any kind of tungsten oxide in the framework. The W-MCM-22 with n(Si)/n(W) of 40 in the gel showed better catalytic performance obviously than MCM-22 for epoxidation of allyl alcohol to glycidol, with hydrogen peroxide as oxidant in aqueous.

Keyword:

Alcohols Catalysis Catalysts Characterization Hydrogen peroxide Hydrothermal synthesis Molecular sieves Oxidation Silica gel Zeolites

Community:

  • [ 1 ] [Zhang, Wen-Bin]Department of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 2 ] [Chen, Xiao-Hui]Department of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 3 ] [Chen, Xiao-Hui]National Research Center of Chemical Fertilizer Catalysts, Fuzhou University, Fuzhou 350002, China
  • [ 4 ] [Wei, Ke-Mei]Department of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 5 ] [Wei, Ke-Mei]National Research Center of Chemical Fertilizer Catalysts, Fuzhou University, Fuzhou 350002, China

Reprint 's Address:

Email:

Show more details

Version:

Related Keywords:

Source :

Acta Petrolei Sinica (Petroleum Processing Section)

ISSN: 1001-8719

CN: 11-2129/TE

Year: 2006

Issue: SUPPL.

Volume: 22

Page: 100-102

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

Online/Total:154/10000534
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1