Local atomic structure in disordered and nanocrystalline catalytic materials.
Abstract
The power of the atomic pair density function method to study the local atomic structure of dispersed materials is discussed for three examples (I) supercapacitor hydrous ruthenia, (II) electroctalyst platinum-iron phosphate and (III) nanoparticle gold catalyst. Hydrous ruthenia appears to be amorphous, but was found to be nanocomposite with RuO{sub 2} nanocrystals supporting electronic and hydrous boundaries protonic conductivity. A platinum-iron phosphate electrocatalyst, that exhibits activity for the oxygen reduction reaction has platinum in a non-metallic state. In catalysts comprised of gold nanoparticles supported on TiO{sub 2}, atomic correlations in the second atomic shell were observed suggesting interaction with the support that could modify gold chemical activity.
- Authors:
-
- University of Tennessee, Knoxville (UTK)
- Naval Research Laboratory, Washington, D.C.
- ORNL
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 972002
- DOE Contract Number:
- DE-AC05-00OR22725
- Resource Type:
- Journal Article
- Journal Name:
- Zeitschrift fur Kristallographie
- Additional Journal Information:
- Journal Volume: 222; Journal Issue: 11
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CATALYSTS; ELECTRONIC STRUCTURE; GOLD; IRON PHOSPHATES; PLATINUM; RUTHENIUM OXIDES; NANOSTRUCTURES; DENSITY FUNCTIONAL METHOD
Citation Formats
Dmowski, W., Egami, T., Swider-Lyons, K., Dai, Sheng, and Overbury, Steven. Local atomic structure in disordered and nanocrystalline catalytic materials.. United States: N. p., 2007.
Web. doi:10.1524/zkri.2007.222.11.617.
Dmowski, W., Egami, T., Swider-Lyons, K., Dai, Sheng, & Overbury, Steven. Local atomic structure in disordered and nanocrystalline catalytic materials.. United States. https://doi.org/10.1524/zkri.2007.222.11.617
Dmowski, W., Egami, T., Swider-Lyons, K., Dai, Sheng, and Overbury, Steven. 2007.
"Local atomic structure in disordered and nanocrystalline catalytic materials.". United States. https://doi.org/10.1524/zkri.2007.222.11.617.
@article{osti_972002,
title = {Local atomic structure in disordered and nanocrystalline catalytic materials.},
author = {Dmowski, W. and Egami, T. and Swider-Lyons, K. and Dai, Sheng and Overbury, Steven},
abstractNote = {The power of the atomic pair density function method to study the local atomic structure of dispersed materials is discussed for three examples (I) supercapacitor hydrous ruthenia, (II) electroctalyst platinum-iron phosphate and (III) nanoparticle gold catalyst. Hydrous ruthenia appears to be amorphous, but was found to be nanocomposite with RuO{sub 2} nanocrystals supporting electronic and hydrous boundaries protonic conductivity. A platinum-iron phosphate electrocatalyst, that exhibits activity for the oxygen reduction reaction has platinum in a non-metallic state. In catalysts comprised of gold nanoparticles supported on TiO{sub 2}, atomic correlations in the second atomic shell were observed suggesting interaction with the support that could modify gold chemical activity.},
doi = {10.1524/zkri.2007.222.11.617},
url = {https://www.osti.gov/biblio/972002},
journal = {Zeitschrift fur Kristallographie},
number = 11,
volume = 222,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}