Aging effect of starting solutions for spherical silica synthesis

Naoya Enomoto, Akihiro Kumagai, Junichi Hojo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Particular attention was paid to the "aging" of starting solution for synthesis of spherical silica by a controlled hydrolysis of alkoxide. Two starting solutions, i.e., an ethanol solution of tetraethylorthosilicate (TEOS) and an ethanol solution of ammonia water, were aged and then mixed to synthesize spheres. Sufficient aging (∼a week) of the starting solutions resulted in larger sphere size and higher monodispersibility. We infer here that solute molecules are not homogeneously dispersed in the as-dissolved solution even though they appear to be clearly dissolved.

Original languageEnglish
Pages (from-to)340-343
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume113
Issue number1317
DOIs
Publication statusPublished - Jan 1 2005

Fingerprint

Silicon Dioxide
Aging of materials
Silica
silicon dioxide
synthesis
Ethanol
ethyl alcohol
alkoxides
Ammonia
hydrolysis
ammonia
Hydrolysis
solutes
Molecules
Water
water
molecules

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Aging effect of starting solutions for spherical silica synthesis. / Enomoto, Naoya; Kumagai, Akihiro; Hojo, Junichi.

In: Journal of the Ceramic Society of Japan, Vol. 113, No. 1317, 01.01.2005, p. 340-343.

Research output: Contribution to journalArticle

Enomoto, Naoya ; Kumagai, Akihiro ; Hojo, Junichi. / Aging effect of starting solutions for spherical silica synthesis. In: Journal of the Ceramic Society of Japan. 2005 ; Vol. 113, No. 1317. pp. 340-343.
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