Particle morphology and microstructure in the mesoporous silicate SBA-2

HMA Hunter, AE Garcia-Bennett, ID Shannon, Wuzong Zhou, Paul Anthony Wright

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The mesoporous solid SBA- 2, prepared at room temperature in alkaline pH using the gemini surfactant [CH3(CH2)(15)N(CH3)(2)(CH2)(3)N(CH3)(3)](2+) can adopt hollow sphere (ca. 100 mum diameter), flat plate (50 mum across) and small sphere (1- 2 mum diameter) morphologies. Plates appear to be formed directly by fracturing of the hollow spheres. The nanostructure of these materials is consistent with templating around close packed micelles. X- Ray diffraction and high resolution imaging show that the structure of these preparations ranges from mainly hexagonal to mainly cubic close packing.

Original languageEnglish
Pages (from-to)20-23
Number of pages4
JournalJournal of Materials Chemistry
Volume12
Publication statusPublished - 2002

Keywords

  • MOLECULAR-SIEVES
  • SPHERES

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