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Title: Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis

Abstract

A dried gel material sterically entrapping nanoclusters of a catalytically active material and a process to make the material via an inverse micelle/sol-gel synthesis. A surfactant is mixed with an apolar solvent to form an inverse micelle solution. A salt of a catalytically active material, such as gold chloride, is added along with a silica gel precursor to the solution to form a mixture. To the mixture are then added a reducing agent for the purpose of reducing the gold in the gold chloride to atomic gold to form the nanoclusters and a condensing agent to form the gel which sterically entraps the nanoclusters. The nanoclusters are normally in the average size range of from 5-10 nm in diameter with a monodisperse size distribution.

Inventors:
 [1];  [2];  [1];  [1];  [1]
  1. (Albuquerque, NM)
  2. (Dallas, TX)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
871868
Patent Number(s):
5814370
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
encapsulation; nanoclusters; dried; materials; via; inverse; micelle; sol; synthesis; material; sterically; entrapping; catalytically; active; process; sol-gel; surfactant; mixed; apolar; solvent; form; solution; salt; gold; chloride; added; silica; precursor; mixture; reducing; agent; purpose; atomic; condensing; entraps; normally; average; size; range; 5-10; nm; diameter; monodisperse; distribution; size range; polar solvent; size distribution; active material; reducing agent; catalytically active; average size; inverse micelle; material via; micelle sol; materials via; /427/428/523/

Citation Formats

Martino, Anthony, Yamanaka, Stacey A., Kawola, Jeffrey S., Showalter, Steven K., and Loy, Douglas A. Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis. United States: N. p., 1998. Web.
Martino, Anthony, Yamanaka, Stacey A., Kawola, Jeffrey S., Showalter, Steven K., & Loy, Douglas A. Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis. United States.
Martino, Anthony, Yamanaka, Stacey A., Kawola, Jeffrey S., Showalter, Steven K., and Loy, Douglas A. Thu . "Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis". United States. https://www.osti.gov/servlets/purl/871868.
@article{osti_871868,
title = {Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis},
author = {Martino, Anthony and Yamanaka, Stacey A. and Kawola, Jeffrey S. and Showalter, Steven K. and Loy, Douglas A.},
abstractNote = {A dried gel material sterically entrapping nanoclusters of a catalytically active material and a process to make the material via an inverse micelle/sol-gel synthesis. A surfactant is mixed with an apolar solvent to form an inverse micelle solution. A salt of a catalytically active material, such as gold chloride, is added along with a silica gel precursor to the solution to form a mixture. To the mixture are then added a reducing agent for the purpose of reducing the gold in the gold chloride to atomic gold to form the nanoclusters and a condensing agent to form the gel which sterically entraps the nanoclusters. The nanoclusters are normally in the average size range of from 5-10 nm in diameter with a monodisperse size distribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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