Linked Life Data

17712460

Source:http://linkedlifedata.com/resource/pubmed/id/17712460

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
34
pubmed:dateCreated
2007-8-22
pubmed:abstractText
The diameter and size-distribution of Ni nanoparticles prepared by the decomposition of [bis(1,5-cyclooctadiene)nickel(0)] organometallic precursor dissolved in 1-alkyl-3-methylimidazolium N-bis(trifluoromethanesulfonyl) amide ionic liquids depend on the length of the alkyl side-chain of the imidazolium ring. The increase of the organization range order of the ionic liquid that increases with that of the alkyl side-chain (from n-butyl to n-hexadecyl) induces the formation of nanoparticles with a smaller diameter and size-distribution. The cubic fcc Ni nanoparticles with 4.9 +/- 0.9 to 5.9 +/- 1.4 nm in mean diameter and monomodal size-distribution thus prepared are probably composed of a small cap layer of NiO around a core of Ni metal. The contribution of the oxide layer also depends on the medium i.e. the metal oxide ratio increases in salts containing four to eight carbons on their side-chains and then decreases as the number of carbons increases. The Ni nanoparticles dispersed in the ionic liquids are active catalysts for the hydrogenation of olefins under relatively mild reaction conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1463-9076
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4814-21
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Synthesis and characterization of nickel nanoparticles dispersed in imidazolium ionic liquids.
pubmed:affiliation
Laboratory of Molecular Catalysis, Instituto de Química-UFRGS, P.O. Box 15003, Porto Alegre, 91501-970, RS Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't