Detailed kinetic observation revealing the formation mechanism of chiral mesoporous silica (CMS) synthesized by cooperative self-assembly of anionic chiral surfactant

Eng Poh Ng*, Nurhaswani Bahaman, Rino R. Mukti, Tau Chuan Ling, Yun Hau Ng, Farook Adam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The synthesis of chiral mesoporous silica (CMS) is desirable for emerging applications, particularly in enantioselective catalysis. However, the detailed evolution during the CMS formation templated by self-assembly of chiral surfactants have not been clearly explained. In this study, we reported the evolutional formation of CMS which was understood by complementary analyses involving advanced techniques such as spectroscopy, microscopy and thermogravimetry. The samples were kinetically studied starting from the time intervals during precursors mixing until fully well-ordered CMS was obtained. Insignificant interactions between C14AlaA and APS were observed at the initiate state and the interaction was becoming crucial for the CMS formation. Additionally, we also speculated that the electrostatic interaction between NH2 group and COO- anionic head group on the micelle surface is the driving force for the CMS formation.

Original languageEnglish (US)
Pages (from-to)192-199
Number of pages8
JournalMaterials Research Bulletin
Volume62
DOIs
StatePublished - Feb 2015

Keywords

  • Crystal growth
  • Inorganic compounds
  • Nanostructures
  • Sol-gel chemistry
  • Solvothermal

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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