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Title: Nanoengineering Catalyst Supports via Layer-by Layer Surface Functionalization

Abstract

Recent progress in the layer-by-layer surface modification of oxides for the preparation of highly active and stable gold nanocatalysts is briefly reviewed. Through a layer-by-layer surface modification approach, the surfaces of various catalyst supports including both porous and nonporous silica materials and TiO{sub 2} nanoparticles were modified with monolayers or multilayers of distinct metal oxide ultra-thin films. The surface-modified materials were used as supports for Au nanoparticles, resulting in highly active nanocatalysts for low-temperature CO oxidation. Good stability against sintering under high-temperature treatment was achieved for a number of the Au catalysts through surface modification of the support material. The surface modification of supports can be a viable route to control both the composition and structure of support and nanoparticle interfaces, thereby tailoring the stability and activity of the supported catalyst systems.

Authors:
 [1];  [1];  [2];  [1]
  1. ORNL
  2. {Steve} H [ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
941018
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Topics in Catalysis
Additional Journal Information:
Journal Volume: 39; Journal Issue: 3-4
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CATALYST SUPPORTS; FABRICATION; TITANIUM OXIDES; NANOSTRUCTURES; CATALYSTS; GOLD; CARBON MONOXIDE; OXIDATION; SILICA

Citation Formats

Yan, Wenfu, Mahurin, Shannon Mark, Overbury, Steven, and Dai, Sheng. Nanoengineering Catalyst Supports via Layer-by Layer Surface Functionalization. United States: N. p., 2006. Web. doi:10.1007/s11244-006-0058-x.
Yan, Wenfu, Mahurin, Shannon Mark, Overbury, Steven, & Dai, Sheng. Nanoengineering Catalyst Supports via Layer-by Layer Surface Functionalization. United States. doi:10.1007/s11244-006-0058-x.
Yan, Wenfu, Mahurin, Shannon Mark, Overbury, Steven, and Dai, Sheng. Sun . "Nanoengineering Catalyst Supports via Layer-by Layer Surface Functionalization". United States. doi:10.1007/s11244-006-0058-x.
@article{osti_941018,
title = {Nanoengineering Catalyst Supports via Layer-by Layer Surface Functionalization},
author = {Yan, Wenfu and Mahurin, Shannon Mark and Overbury, Steven and Dai, Sheng},
abstractNote = {Recent progress in the layer-by-layer surface modification of oxides for the preparation of highly active and stable gold nanocatalysts is briefly reviewed. Through a layer-by-layer surface modification approach, the surfaces of various catalyst supports including both porous and nonporous silica materials and TiO{sub 2} nanoparticles were modified with monolayers or multilayers of distinct metal oxide ultra-thin films. The surface-modified materials were used as supports for Au nanoparticles, resulting in highly active nanocatalysts for low-temperature CO oxidation. Good stability against sintering under high-temperature treatment was achieved for a number of the Au catalysts through surface modification of the support material. The surface modification of supports can be a viable route to control both the composition and structure of support and nanoparticle interfaces, thereby tailoring the stability and activity of the supported catalyst systems.},
doi = {10.1007/s11244-006-0058-x},
journal = {Topics in Catalysis},
number = 3-4,
volume = 39,
place = {United States},
year = {2006},
month = {1}
}