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New method for the preparation of nonuniform distributed Co/SiO2 catalysts.

Authors
  • Li, Jingwei
  • Ding, Yunjie
  • Li, Xianming
  • Jiao, Guiping
  • Wang, Tao
  • Chen, Weimiao
  • Luo, Hongyuan
Type
Published Article
Journal
Chemical communications (Cambridge, England)
Publication Date
Dec 07, 2008
Issue
45
Pages
5954–5956
Identifiers
DOI: 10.1039/b813641f
PMID: 19030550
Source
Medline
License
Unknown

Abstract

Egg-shell, egg-yolk and egg-white types of Co/SiO2 catalysts were prepared by utilizing entrapped air to inhibit the entrance of impregnation or leaching solution into the cores of catalyst pellets during the preparation procedure; the entrapped air played the important role because the capillary pressure was reduced to a suitable range by adjusting the concentration of ethanol in the impregnation or leaching solution for a hydrophobized silica surface.

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