Linked Life Data

20715880

Source:http://linkedlifedata.com/resource/pubmed/id/20715880

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
21
pubmed:dateCreated
2010-10-26
pubmed:abstractText
Ligand-capped Pt nanowires, prepared by colloidal synthesis and deposited on a high surface area ?-Al(2)O(3) support, were subjected to surface characterization by electron microscopy and FTIR spectroscopy using CO as a probe molecule. The structural, adsorption, and catalytic reaction properties of the colloidal Pt nanowires were compared to those of conventional, impregnated Pt nanoparticles on the same Al(2)O(3) support. In situ FTIR spectroscopy indicated ligand effects on the CO resonance frequency, irreversible CO-induced surface roughening upon CO adsorption, and a higher resistance of colloidal catalysts toward oxidation (both in oxygen and during CO oxidation), suggesting that the organic ligands might protect the Pt surface. Elevated temperature induced a transformation of Pt nanowires to faceted Pt nanoparticles. The colloidal catalyst was active for hydrodechlorination of trichloroethylene (TCE), but no ligand effect on selectivity was obtained.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1520-5827
pubmed:author
pubmed:issnType
Electronic
pubmed:day
2
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
16330-8
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Colloidally prepared Pt nanowires versus impregnated Pt nanoparticles: comparison of adsorption and reaction properties.
pubmed:affiliation
Institute of Materials Chemistry, Vienna University of Technology, Veterina?rplatz 1/GA, A-1210 Vienna, Austria.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't