skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Communications : Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis.

Abstract

The stability of model catalysts based on size-selected Pd clusters supported on graphite surfaces has been explored under realistic conditions for catalytic oxidation of methane at mild temperatures. The experimental results show that aggregated films of nanoparticles are highly unstable, but clusters pinned to the surface in the submonolayer coverage regime are much more stable against sintering. The degree of sintering of the pinned clusters, which does occur, proceeds by the release of clusters from their pinning sites. The suppression of sintering depends on the cluster deposition energy with respect to the pinning threshold.

Authors:
; ; ; ;  [1]
  1. Center for Nanoscale Materials
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Univ. of Birmingham
OSTI Identifier:
1013331
Report Number(s):
ANL/MSD/JA-69492
Journal ID: 0021-9606; TRN: US201110%%587
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
J. Chem. Phys.
Additional Journal Information:
Journal Volume: 134; Journal Issue: 14 ; Apr. 8, 2011
Country of Publication:
United States
Language:
ENGLISH
Subject:
03 NATURAL GAS; CATALYSIS; CATALYSTS; COMMUNICATIONS; DEPOSITION; GRAPHITE; METHANE; OXIDATION; SINTERING; STABILITY

Citation Formats

Yin, F, Lee, S, Abdela, A, Vajda, S, Palmer, R E, MSD), XSD), Univ. of Birmingham), and Yale Univ.). Communications : Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis.. United States: N. p., 2011. Web. doi:10.1063/1.3575195.
Yin, F, Lee, S, Abdela, A, Vajda, S, Palmer, R E, MSD), XSD), Univ. of Birmingham), & Yale Univ.). Communications : Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis.. United States. https://doi.org/10.1063/1.3575195
Yin, F, Lee, S, Abdela, A, Vajda, S, Palmer, R E, MSD), XSD), Univ. of Birmingham), and Yale Univ.). 2011. "Communications : Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis.". United States. https://doi.org/10.1063/1.3575195.
@article{osti_1013331,
title = {Communications : Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis.},
author = {Yin, F and Lee, S and Abdela, A and Vajda, S and Palmer, R E and MSD) and XSD) and Univ. of Birmingham) and Yale Univ.)},
abstractNote = {The stability of model catalysts based on size-selected Pd clusters supported on graphite surfaces has been explored under realistic conditions for catalytic oxidation of methane at mild temperatures. The experimental results show that aggregated films of nanoparticles are highly unstable, but clusters pinned to the surface in the submonolayer coverage regime are much more stable against sintering. The degree of sintering of the pinned clusters, which does occur, proceeds by the release of clusters from their pinning sites. The suppression of sintering depends on the cluster deposition energy with respect to the pinning threshold.},
doi = {10.1063/1.3575195},
url = {https://www.osti.gov/biblio/1013331}, journal = {J. Chem. Phys.},
number = 14 ; Apr. 8, 2011,
volume = 134,
place = {United States},
year = {Fri Apr 08 00:00:00 EDT 2011},
month = {Fri Apr 08 00:00:00 EDT 2011}
}