Preparation of surfactant templated nanoporous silica spherical particles by the Stöber method. Effect of solvent composition on the particle size

Naoki Shimura, Makoto Ogawa*

*この研究の対応する著者

研究成果: Article査読

46 被引用数 (Scopus)

抄録

Monodispersed nanoporous silica spherical particles with the particle size ranges from 0.01 μm to 1.5 μm were successfully prepared by the Stöber method combined with supramolecular templating approach. The particles formed from homogeneous solutions containing tetraethoxysilane, cetyltrimethylammonium chloride, methanol, and aqueous ammonia solution at room temperature. In the present study, methanol/tetraethoxysilane ratio was the factor to control the particle size. With increasing the methanol/ tetraethoxysilane ratios from 1,125 to 6,000, particle size decreased from 1.5 μm to 0.01 μm. The calcination of the particles resulted in the spherical porous silicas with the average pore sizes of around 2.0 nm irrespective of the particle size. The particle morphology retained after the calcination.

本文言語English
ページ(範囲)5299-5306
ページ数8
ジャーナルJournal of Materials Science
42
14
DOI
出版ステータスPublished - 2007 7

ASJC Scopus subject areas

  • 材料科学(全般)
  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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