Corrosion processes of triangular silver nanoparticles compared to bulk silver

Keast, VJ; Myles, TA; Shahcheraghi, N; Cortie, MB

Corrosion processes of triangular silver nanoparticles compared to bulk silver

Keast, VJ Myles, TA Shahcheraghi, N Cortie, MB

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Publisher:: Springer
Publication Type:: Journal Article
Citation:: Journal of Nanoparticle Research, 2016, 18, (2), pp. 1-11
Issue Date:: 2016-02-11

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Field	Value	Language
dc.contributor.author	Keast, VJ
dc.contributor.author	Myles, TA
dc.contributor.author	Shahcheraghi, N
dc.contributor.author	Cortie, MB
dc.date.accessioned	2023-04-26T11:29:30Z
dc.date.available	2023-04-26T11:29:30Z
dc.date.issued	2016-02-11
dc.identifier.citation	Journal of Nanoparticle Research, 2016, 18, (2), pp. 1-11
dc.identifier.issn	1388-0764
dc.identifier.issn	1572-896X
dc.identifier.uri	http://hdl.handle.net/10453/170121
dc.description.abstract	Excessive corrosion of silver nanoparticles is a significant impediment to their use in a variety of potential applications in the biosensing, plasmonic and antimicrobial fields. Here we examine the environmental degradation of triangular silver nanoparticles (AgNP) in laboratory air. In the early stages of corrosion, transmission electron microscopy shows that dissolution of the single-crystal, triangular, AgNP (side lengths 50–120 nm) is observed with the accompanying formation of smaller, polycrystalline Ag particles nearby. The new particles are then observed to corrode to Ag2S and after 21 days nearly full corrosion has occurred, but some with minor Ag inclusions remaining. In contrast, a bulk Ag sheet, studied in cross section, showed an adherent corrosion layer of only around 20–50 nm in thickness after over a decade of being exposed to ambient air. The results have implications for antibacterial properties and ecotoxicology of AgNP during corrosion as the dissolution and reformation of Ag particles during corrosion will likely be accompanied by the release of Ag+ ions.
dc.language	English
dc.publisher	Springer
dc.relation	http://purl.org/au-research/grants/arc/DP120102545
dc.relation.ispartof	Journal of Nanoparticle Research
dc.relation.isbasedon	10.1007/s11051-016-3354-9
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0912 Materials Engineering, 1007 Nanotechnology
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Corrosion processes of triangular silver nanoparticles compared to bulk silver
dc.type	Journal Article
utslib.citation.volume	18
utslib.for	0912 Materials Engineering
utslib.for	1007 Nanotechnology
utslib.for	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
utslib.for	0912 Materials Engineering
utslib.for	1007 Nanotechnology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Students
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2023-04-26T11:29:27Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	18
utslib.citation.issue	2

Abstract:

Excessive corrosion of silver nanoparticles is a significant impediment to their use in a variety of potential applications in the biosensing, plasmonic and antimicrobial fields. Here we examine the environmental degradation of triangular silver nanoparticles (AgNP) in laboratory air. In the early stages of corrosion, transmission electron microscopy shows that dissolution of the single-crystal, triangular, AgNP (side lengths 50–120 nm) is observed with the accompanying formation of smaller, polycrystalline Ag particles nearby. The new particles are then observed to corrode to Ag2S and after 21 days nearly full corrosion has occurred, but some with minor Ag inclusions remaining. In contrast, a bulk Ag sheet, studied in cross section, showed an adherent corrosion layer of only around 20–50 nm in thickness after over a decade of being exposed to ambient air. The results have implications for antibacterial properties and ecotoxicology of AgNP during corrosion as the dissolution and reformation of Ag particles during corrosion will likely be accompanied by the release of Ag+ ions.

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http://hdl.handle.net/10453/170121