Complexed Metal Clusters in Organically Modified Oxide Matrices

T. Gacoin; F. Chaput; J. P. Boilot; G. Jaskierowicz

doi:10.1021/cm00032a019

Complexed Metal Clusters in Organically Modified Oxide Matrices

T. Gacoin
, F. Chaput
, J. P. Boilot
, G. Jaskierowicz

Laboratoire des Solides Irradiés

Research output: Contribution to journal › Article › peer-review

Abstract

A two-step procedure was developed to prepare composite materials containing nanometer-sized metal particles (Ag, Au) homogeneously dispersed in sol-gel matrices. In the first step, irradiation with γ-rays from a ⁶⁰Co source was used to initiate the growth of metal particles in a solution containing both metal ions and stabilizing multifunctional silanes ℐ(CH₂)₃Si(OR)₃ (ℐ = H₂N−, NCS−, …). In the second step, transparent and closed porosity xerogels with metal clusters grafted on the oxide network were prepared via hydrolysis-condensation of alkoxides. The nanocrystallites were characterized by transmission electron microscopy and optical spectroscopy.

Original language	English
Pages (from-to)	1150-1156
Number of pages	7
Journal	Chemistry of Materials
Volume	5
Issue number	8
DOIs	https://doi.org/10.1021/cm00032a019
Publication status	Published - 1 Jan 1993

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title = "Complexed Metal Clusters in Organically Modified Oxide Matrices",

abstract = "A two-step procedure was developed to prepare composite materials containing nanometer-sized metal particles (Ag, Au) homogeneously dispersed in sol-gel matrices. In the first step, irradiation with γ-rays from a 60Co source was used to initiate the growth of metal particles in a solution containing both metal ions and stabilizing multifunctional silanes ℐ(CH2)3Si(OR)3 (ℐ = H2N−, NCS−, …). In the second step, transparent and closed porosity xerogels with metal clusters grafted on the oxide network were prepared via hydrolysis-condensation of alkoxides. The nanocrystallites were characterized by transmission electron microscopy and optical spectroscopy.",

author = "T. Gacoin and F. Chaput and Boilot, \{J. P.\} and G. Jaskierowicz",

year = "1993",

month = jan,

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journal = "Chemistry of Materials",

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T1 - Complexed Metal Clusters in Organically Modified Oxide Matrices

AU - Gacoin, T.

AU - Chaput, F.

AU - Boilot, J. P.

AU - Jaskierowicz, G.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - A two-step procedure was developed to prepare composite materials containing nanometer-sized metal particles (Ag, Au) homogeneously dispersed in sol-gel matrices. In the first step, irradiation with γ-rays from a 60Co source was used to initiate the growth of metal particles in a solution containing both metal ions and stabilizing multifunctional silanes ℐ(CH2)3Si(OR)3 (ℐ = H2N−, NCS−, …). In the second step, transparent and closed porosity xerogels with metal clusters grafted on the oxide network were prepared via hydrolysis-condensation of alkoxides. The nanocrystallites were characterized by transmission electron microscopy and optical spectroscopy.

AB - A two-step procedure was developed to prepare composite materials containing nanometer-sized metal particles (Ag, Au) homogeneously dispersed in sol-gel matrices. In the first step, irradiation with γ-rays from a 60Co source was used to initiate the growth of metal particles in a solution containing both metal ions and stabilizing multifunctional silanes ℐ(CH2)3Si(OR)3 (ℐ = H2N−, NCS−, …). In the second step, transparent and closed porosity xerogels with metal clusters grafted on the oxide network were prepared via hydrolysis-condensation of alkoxides. The nanocrystallites were characterized by transmission electron microscopy and optical spectroscopy.

U2 - 10.1021/cm00032a019

DO - 10.1021/cm00032a019

M3 - Article

AN - SCOPUS:0002215240

SN - 0897-4756

VL - 5

SP - 1150

EP - 1156

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 8

ER -

Complexed Metal Clusters in Organically Modified Oxide Matrices

Abstract

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