The fate of organic species upon sintering of thiol-stabilised gold nanoparticles under different atmospheric conditions.

Summers, PK; Angeloski, A; Wuhrer, R; Cortie, MB; McDonagh, AM

The fate of organic species upon sintering of thiol-stabilised gold nanoparticles under different atmospheric conditions.

Summers, PK Angeloski, A

Wuhrer, R Cortie, MB McDonagh, AM

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Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Phys Chem Chem Phys, 2023, 25, (10), pp. 7170-7175
Issue Date:: 2023-03-08

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Field	Value	Language
dc.contributor.author	Summers, PK
dc.contributor.author	Angeloski, A https://orcid.org/0000-0003-4395-1829
dc.contributor.author	Wuhrer, R
dc.contributor.author	Cortie, MB
dc.contributor.author	McDonagh, AM
dc.date.accessioned	2024-04-02T02:40:16Z
dc.date.available	2024-04-02T02:40:16Z
dc.date.issued	2023-03-08
dc.identifier.citation	Phys Chem Chem Phys, 2023, 25, (10), pp. 7170-7175
dc.identifier.issn	1463-9076
dc.identifier.issn	1463-9084
dc.identifier.uri	http://hdl.handle.net/10453/177417
dc.description.abstract	Understanding and controlling the sintering behavior of gold nanoparticles is important for applications such as printed electronics, catalysis and sensing that utilise these materials. Here we examine the processes by which thiol-protected gold nanoparticles thermally sinter under a variety of atmospheres. We find that upon sintering, the surface-bound thiyl ligands exclusively form the corresponding disulfide species when released from the gold surface. Experiments conducted using air, hydrogen, nitrogen, or argon atmospheres revealed no significant differences between the temperatures of the sintering event nor on the composition of released organic species. When conducted under high vacuum, the sintering event occurred at lower temperatures compared to ambient pressures in cases where the resulting disulfide had relatively high volatility (dibutyl disulfide). Hexadecylthiol-stabilized particles exhibited no significant differences in the temperatures of the sintering event under ambient pressures compared to high vacuum conditions. We attribute this to the relatively low volatility of the resultant dihexadecyl disulfide product.
dc.format	Electronic
dc.language	eng
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation.ispartof	Phys Chem Chem Phys
dc.relation.hasversion	Accepted Manauscript
dc.relation.isbasedon	10.1039/d2cp05822g
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Physics
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	The fate of organic species upon sintering of thiol-stabilised gold nanoparticles under different atmospheric conditions.
dc.type	Journal Article
utslib.citation.volume	25
utslib.location.activity	England
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	open_access	*
dc.date.updated	2024-04-02T02:40:15Z
pubs.issue	10
pubs.publication-status	Published online
pubs.volume	25
utslib.citation.issue	10

Abstract:

Understanding and controlling the sintering behavior of gold nanoparticles is important for applications such as printed electronics, catalysis and sensing that utilise these materials. Here we examine the processes by which thiol-protected gold nanoparticles thermally sinter under a variety of atmospheres. We find that upon sintering, the surface-bound thiyl ligands exclusively form the corresponding disulfide species when released from the gold surface. Experiments conducted using air, hydrogen, nitrogen, or argon atmospheres revealed no significant differences between the temperatures of the sintering event nor on the composition of released organic species. When conducted under high vacuum, the sintering event occurred at lower temperatures compared to ambient pressures in cases where the resulting disulfide had relatively high volatility (dibutyl disulfide). Hexadecylthiol-stabilized particles exhibited no significant differences in the temperatures of the sintering event under ambient pressures compared to high vacuum conditions. We attribute this to the relatively low volatility of the resultant dihexadecyl disulfide product.

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http://hdl.handle.net/10453/177417