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Title: Thermally stable nanoparticles on supports

Abstract

An inverse micelle-based method for forming nanoparticles on supports includes dissolving a polymeric material in a solvent to provide a micelle solution. A nanoparticle source is dissolved in the micelle solution. A plurality of micelles having a nanoparticle in their core and an outer polymeric coating layer are formed in the micelle solution. The micelles are applied to a support. The polymeric coating layer is then removed from the micelles to expose the nanoparticles. A supported catalyst includes a nanocrystalline powder, thin film, or single crystal support. Metal nanoparticles having a median size from 0.5 nm to 25 nm, a size distribution having a standard deviation .ltoreq.0.1 of their median size are on or embedded in the support. The plurality of metal nanoparticles are dispersed and in a periodic arrangement. The metal nanoparticles maintain their periodic arrangement and size distribution following heat treatments of at least 1,000.degree. C.

Inventors:
; ;
Issue Date:
Research Org.:
University of Central Florida Research Foundation, Inc. (Orlando, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080361
Patent Number(s):
8309489
Application Number:
12/818,928
Assignee:
University of Central Florida Research Foundation, Inc. (Orlando, FL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
FG02-08ER15995
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Roldan Cuenya, Beatriz, Naitabdi, Ahmed R., and Behafarid, Farzad. Thermally stable nanoparticles on supports. United States: N. p., 2012. Web.
Roldan Cuenya, Beatriz, Naitabdi, Ahmed R., & Behafarid, Farzad. Thermally stable nanoparticles on supports. United States.
Roldan Cuenya, Beatriz, Naitabdi, Ahmed R., and Behafarid, Farzad. Tue . "Thermally stable nanoparticles on supports". United States. https://www.osti.gov/servlets/purl/1080361.
@article{osti_1080361,
title = {Thermally stable nanoparticles on supports},
author = {Roldan Cuenya, Beatriz and Naitabdi, Ahmed R. and Behafarid, Farzad},
abstractNote = {An inverse micelle-based method for forming nanoparticles on supports includes dissolving a polymeric material in a solvent to provide a micelle solution. A nanoparticle source is dissolved in the micelle solution. A plurality of micelles having a nanoparticle in their core and an outer polymeric coating layer are formed in the micelle solution. The micelles are applied to a support. The polymeric coating layer is then removed from the micelles to expose the nanoparticles. A supported catalyst includes a nanocrystalline powder, thin film, or single crystal support. Metal nanoparticles having a median size from 0.5 nm to 25 nm, a size distribution having a standard deviation .ltoreq.0.1 of their median size are on or embedded in the support. The plurality of metal nanoparticles are dispersed and in a periodic arrangement. The metal nanoparticles maintain their periodic arrangement and size distribution following heat treatments of at least 1,000.degree. C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Works referenced in this record:

Solving the Structure of Size-Selected Pt Nanocatalysts Synthesized by Inverse Micelle Encapsulation
journal, June 2010