Counter diffusion self assembly synthesis of ordered mesoporous silica membranes

Shriya K. Seshadri, Hatem M. Alsyouri, Jerry Lin

Research output: Chapter in Book/Report/Conference proceedingChapter


We report the synthesis of ordered mesoporous silica membranes in macroporous supports by a novel acid catalyzed counter diffusion self assembly (CDSA) method. Effect of pore size, morphology and surface chemistry of the support on the formation of oriented mesoporous silica plugs has been studied. Hydrophobically modified small pore alumina supports (0.3μm) show good quality silica membranes as sub-millimeter plugs. Preliminary observations on straight pored hydrophilic and hydrophobic track etch polycarbonate membranes supports (pore diameters 5 μm and 8 μm respectively) indicate the formation of ordered mesoporous silica plugs within the support pores, as seen by results of scanning electron microscopy and X-ray diffraction studies. Experimental results suggest that the pore size and morphology of the support play a vital role in the formation of these ordered mesoporous silica plugs, while surface chemistry seems affect the quality of the plugs formed.

Original languageEnglish (US)
Title of host publicationFrom Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference
PublisherElsevier Inc.
Number of pages8
ISBN (Print)0444530681, 9780444530684
StatePublished - 2007

Publication series

NameStudies in Surface Science and Catalysis
ISSN (Print)0167-2991

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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