High surface area microporous tabular SiO2 nanoparticles synthesized from octylamine/water bilayer systems

Jun Wang, William B. White, James H. Adair

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Amorphous tabular SiO2 nanoparticles were synthesized from the self-assembled octylamine/water bilayer via a template-directed growth mechanism. Morphology of the tabular SiO2 nanoparticles was analyzed by transmission electron microscope (TEM) both for samples dried at 25 °C and as a function of high temperature treatment. The tabular SiO2 nanoparticles had well-defined thickness (4-6 nm) with a relative range of face diameter from 100 to 300 nm. This range of dimensions leads to a wide distribution of aspect ratio (10-50) based on atomic force microscope analysis (AFM). High surface area up to ∼1200 m2/g was readily obtained with a very uniform micropore size of about 0.63 nm after thermal treatment at 700 °C for 2 h.

Original languageEnglish (US)
Pages (from-to)27-32
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Issue number1-3
StatePublished - Sep 1 2006

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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