Influence of ligand structure on the stability andoxidation of copper nanoparticles

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Kanninen, Petri Johans, Christoffer Merta, Juha Kontturi, Kyösti 2016-09-23T09:29:40Z 2008
dc.identifier.citation Kanninen , P , Johans , C , Merta , J & Kontturi , K 2008 , ' Influence of ligand structure on the stability andoxidation of copper nanoparticles ' JOURNAL OF COLLOID AND INTERFACE SCIENCE , vol 318 , no. 1 , pp. 88-95 . DOI: 10.1016/j.jcis.2007.09.069 en
dc.identifier.issn 0021-9797
dc.identifier.issn 1095-7103
dc.identifier.other PURE UUID: beabd401-d985-4ab3-8e50-a775f24e04ed
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract The stability and oxidation of copper nanoparticles stabilized with various ligands have been studied. Lauric acid-capped copper nanoparticles were prepared by a modified Brust–Schiffrin method. Then, ligand exchange with an excess of different capping agents was performed. Oxidation and stability were studied by UV–vis, XRD, and TEM. Alkanethiols and oleic acid were found to improve air stability. The oxidation resistance of thiol-capped copper nanoparticles was found to increase with the chain length of the thiol. However, excess thiol caused etching of the particles under nitrogen. With oleic acid no etching was observed under nitrogen. After oxidation, no traces of the ligand-exchanged particles were found, suggesting their dissolution due to excess ligand. Oleic acid protected the particles against oxidation better than the tested thiols at large excess (ligand–copper ratio 20:1). en
dc.format.extent 88-95
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries JOURNAL OF COLLOID AND INTERFACE SCIENCE en
dc.relation.ispartofseries Volume 318, issue 1 en
dc.rights openAccess en
dc.subject.other 116 Chemical sciences en
dc.title Influence of ligand structure on the stability andoxidation of copper nanoparticles en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemistry en
dc.subject.keyword ligand structure
dc.subject.keyword Copper nanoparticles
dc.subject.keyword Oxidation
dc.subject.keyword Ligand exchange
dc.subject.keyword Etching
dc.subject.keyword Alkanethiols
dc.subject.keyword Oleic acid
dc.subject.keyword Lauric acid
dc.subject.keyword 116 Chemical sciences
dc.identifier.urn URN:NBN:fi:aalto-201609234469
dc.identifier.doi 10.1016/j.jcis.2007.09.069
dc.type.version acceptedVersion

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