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 are disclosed. 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. 1 fig.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 672626
- Patent Number(s):
- 5814370
- Application Number:
- PAN: 8-664,210
- Assignee:
- Sandia Corp., Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 29 Sep 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; CATALYSTS; ENCAPSULATION; GELS; CHEMICAL PREPARATION; MICELLAR SYSTEMS; GOLD CHLORIDES; REDUCING AGENTS; PARTICLE SIZE
Citation Formats
Martino, A, Yamanaka, S A, Kawola, J S, Showalter, S K, and Loy, D A. Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis. United States: N. p., 1998.
Web.
Martino, A, Yamanaka, S A, Kawola, J S, Showalter, S K, & Loy, D A. Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis. United States.
Martino, A, Yamanaka, S A, Kawola, J S, Showalter, S K, and Loy, D A. Tue .
"Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis". United States.
@article{osti_672626,
title = {Encapsulation of nanoclusters in dried gel materials via an inverse micelle/sol gel synthesis},
author = {Martino, A and Yamanaka, S A and Kawola, J S and Showalter, S K and Loy, D 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 are disclosed. 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. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}