Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation

Abstract Gold/silver bimetallic nanoparticles still attract extensive interest due to their favorable properties e.g. in plasmonics or catalysis. We present here a facile and robust way for the production of clean Au/Ag binary nanoparticles (BNPs) with a total control over the composition via the sp...

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Autores principales:	Attila Kohut, Lajos Péter Villy, Albert Kéri, Ádám Bélteki, Dániel Megyeri, Béla Hopp, Gábor Galbács, Zsolt Geretovszky
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0a308e4d31244f0e840b3a2204a912f8
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spelling	oai:doaj.org-article:0a308e4d31244f0e840b3a2204a912f82021-12-02T15:52:59ZFull range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation10.1038/s41598-021-84392-62045-2322https://doaj.org/article/0a308e4d31244f0e840b3a2204a912f82021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84392-6https://doaj.org/toc/2045-2322Abstract Gold/silver bimetallic nanoparticles still attract extensive interest due to their favorable properties e.g. in plasmonics or catalysis. We present here a facile and robust way for the production of clean Au/Ag binary nanoparticles (BNPs) with a total control over the composition via the spark discharge nanoparticle generation technique. With the application of pure Ag and Au electrodes, a tuning range of 55 to 90% Au content was achieved, but this can be further extended to the full 0 to 100% range by using a couple of alloyed electrodes. An added benefit of the approach is that either the concentration or the mean particle size can be kept constant at every composition by adjusting the generator parameters. Based on the systematic experimental data collected, a semi-empirical model for the prediction of the Au/Ag BNP composition was also developed. This model was used to calculate the theoretically achievable Au/Ag composition at a given spark parameter set in the parameter range most commonly used in the literature.Attila KohutLajos Péter VillyAlbert KériÁdám BéltekiDániel MegyeriBéla HoppGábor GalbácsZsolt GeretovszkyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Attila Kohut Lajos Péter Villy Albert Kéri Ádám Bélteki Dániel Megyeri Béla Hopp Gábor Galbács Zsolt Geretovszky Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
description	Abstract Gold/silver bimetallic nanoparticles still attract extensive interest due to their favorable properties e.g. in plasmonics or catalysis. We present here a facile and robust way for the production of clean Au/Ag binary nanoparticles (BNPs) with a total control over the composition via the spark discharge nanoparticle generation technique. With the application of pure Ag and Au electrodes, a tuning range of 55 to 90% Au content was achieved, but this can be further extended to the full 0 to 100% range by using a couple of alloyed electrodes. An added benefit of the approach is that either the concentration or the mean particle size can be kept constant at every composition by adjusting the generator parameters. Based on the systematic experimental data collected, a semi-empirical model for the prediction of the Au/Ag BNP composition was also developed. This model was used to calculate the theoretically achievable Au/Ag composition at a given spark parameter set in the parameter range most commonly used in the literature.
format	article
author	Attila Kohut Lajos Péter Villy Albert Kéri Ádám Bélteki Dániel Megyeri Béla Hopp Gábor Galbács Zsolt Geretovszky
author_facet	Attila Kohut Lajos Péter Villy Albert Kéri Ádám Bélteki Dániel Megyeri Béla Hopp Gábor Galbács Zsolt Geretovszky
author_sort	Attila Kohut
title	Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
title_short	Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
title_full	Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
title_fullStr	Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
title_full_unstemmed	Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation
title_sort	full range tuning of the composition of au/ag binary nanoparticles by spark discharge generation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0a308e4d31244f0e840b3a2204a912f8
work_keys_str_mv	AT attilakohut fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT lajospetervilly fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT albertkeri fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT adambelteki fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT danielmegyeri fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT belahopp fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT gaborgalbacs fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration AT zsoltgeretovszky fullrangetuningofthecompositionofauagbinarynanoparticlesbysparkdischargegeneration
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Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation

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