Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique

Tuo Li, Joo Ho Moon, Augusto A. Morrone, John J. Mecholsky, Daniel R. Talham, James H. Adair

Research output: Contribution to journalArticle

217 Citations (Scopus)

Abstract

Spherical nanosize Ag/SiO2 composite particles have been synthesized within reverse micelles via metal alkoxide hydrolysis and condensation. The size of the particles and the thickness of the coating can be controlled by manipulating the relative rates of the hydrolysis and condensation reactions of tetraethoxysilane (TEOS) within the microemulsion. Composite particles in the size range 20-35 nm are produced. As the molar ratio of water to surfactant is increased above 10, the size distribution broadens. Absorption spectra have been used to dynamically monitor the reaction and growth. The effects of other synthesis parameters, such as the molar ratio of water to TEOS and the amount of base catalyst, are discussed. Possible mechanisms for the formation of the nanocomposite particles are also discussed.

Original languageEnglish
Pages (from-to)4328-4334
Number of pages7
JournalLangmuir
Volume15
Issue number13
DOIs
Publication statusPublished - 1999 Jan 1

Fingerprint

Micelles
Sol-gels
Hydrolysis
micelles
gels
preparation
Condensation reactions
composite materials
Water
Microemulsions
Composite materials
Polymers
Surface-Active Agents
Particles (particulate matter)
hydrolysis
Absorption spectra
Condensation
Nanocomposites
Surface active agents
condensation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Li, T., Moon, J. H., Morrone, A. A., Mecholsky, J. J., Talham, D. R., & Adair, J. H. (1999). Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique. Langmuir, 15(13), 4328-4334. https://doi.org/10.1021/la970801o
Li, Tuo ; Moon, Joo Ho ; Morrone, Augusto A. ; Mecholsky, John J. ; Talham, Daniel R. ; Adair, James H. / Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique. In: Langmuir. 1999 ; Vol. 15, No. 13. pp. 4328-4334.
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Li, T, Moon, JH, Morrone, AA, Mecholsky, JJ, Talham, DR & Adair, JH 1999, 'Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique', Langmuir, vol. 15, no. 13, pp. 4328-4334. https://doi.org/10.1021/la970801o

Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique. / Li, Tuo; Moon, Joo Ho; Morrone, Augusto A.; Mecholsky, John J.; Talham, Daniel R.; Adair, James H.

In: Langmuir, Vol. 15, No. 13, 01.01.1999, p. 4328-4334.

Research output: Contribution to journalArticle

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AU - Adair, James H.

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