The formation mechanism of Janus nanostructures in one-pot reactions

The case of Ag-Ag8GeS6

Joel Van Embden, Laure Bourgeois, Enrico Della Gaspera, Lynne J Waddington, Yuefeng Yin, Nikhil V. Medhekar, Jacek J. Jasieniak, Anthony S. R. Chesman

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Herein we describe a large-scale, non-injection "one-pot" batch method for producing large quantities of novel colloidal Ag-Ag8GeS6 heteronanostructures. Using a suite of analytical techniques, including high resolution TEM, HAADF-STEM, XEDS mapping, and XRD, the formation mechanism of the nanostructures is elucidated. The formation is discovered to occur in three stages comprising nucleation, phase separation of the metal and semiconductor components, and the final segregation of the metal and semiconductor components to form the Janus nanostructure. The high ionic mobility and chemical reactivity of Ag enables the self-regulated formation of Janus nanostructures in optimized one-pot reactions-a phenomenon that is almost unique to silver-based systems. As such, silver-based systems are ideal candidates to study the formation of Janus nanostructures.

Original languageEnglish
Pages (from-to)7060-7070
Number of pages11
JournalJournal of Materials Chemistry A
Volume4
Issue number18
DOIs
Publication statusPublished - 2016

Cite this

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title = "The formation mechanism of Janus nanostructures in one-pot reactions: The case of Ag-Ag8GeS6",
abstract = "Herein we describe a large-scale, non-injection {"}one-pot{"} batch method for producing large quantities of novel colloidal Ag-Ag8GeS6 heteronanostructures. Using a suite of analytical techniques, including high resolution TEM, HAADF-STEM, XEDS mapping, and XRD, the formation mechanism of the nanostructures is elucidated. The formation is discovered to occur in three stages comprising nucleation, phase separation of the metal and semiconductor components, and the final segregation of the metal and semiconductor components to form the Janus nanostructure. The high ionic mobility and chemical reactivity of Ag enables the self-regulated formation of Janus nanostructures in optimized one-pot reactions-a phenomenon that is almost unique to silver-based systems. As such, silver-based systems are ideal candidates to study the formation of Janus nanostructures.",
author = "{Van Embden}, Joel and Laure Bourgeois and {Della Gaspera}, Enrico and Waddington, {Lynne J} and Yuefeng Yin and Medhekar, {Nikhil V.} and Jasieniak, {Jacek J.} and Chesman, {Anthony S. R.}",
year = "2016",
doi = "10.1039/c6ta00398b",
language = "English",
volume = "4",
pages = "7060--7070",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "The Royal Society of Chemistry",
number = "18",

}

The formation mechanism of Janus nanostructures in one-pot reactions : The case of Ag-Ag8GeS6. / Van Embden, Joel; Bourgeois, Laure; Della Gaspera, Enrico; Waddington, Lynne J; Yin, Yuefeng; Medhekar, Nikhil V.; Jasieniak, Jacek J.; Chesman, Anthony S. R.

In: Journal of Materials Chemistry A, Vol. 4, No. 18, 2016, p. 7060-7070.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The formation mechanism of Janus nanostructures in one-pot reactions

T2 - The case of Ag-Ag8GeS6

AU - Van Embden, Joel

AU - Bourgeois, Laure

AU - Della Gaspera, Enrico

AU - Waddington, Lynne J

AU - Yin, Yuefeng

AU - Medhekar, Nikhil V.

AU - Jasieniak, Jacek J.

AU - Chesman, Anthony S. R.

PY - 2016

Y1 - 2016

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AB - Herein we describe a large-scale, non-injection "one-pot" batch method for producing large quantities of novel colloidal Ag-Ag8GeS6 heteronanostructures. Using a suite of analytical techniques, including high resolution TEM, HAADF-STEM, XEDS mapping, and XRD, the formation mechanism of the nanostructures is elucidated. The formation is discovered to occur in three stages comprising nucleation, phase separation of the metal and semiconductor components, and the final segregation of the metal and semiconductor components to form the Janus nanostructure. The high ionic mobility and chemical reactivity of Ag enables the self-regulated formation of Janus nanostructures in optimized one-pot reactions-a phenomenon that is almost unique to silver-based systems. As such, silver-based systems are ideal candidates to study the formation of Janus nanostructures.

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