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Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet

We achieved sputter deposition of silver atoms onto liquid alcohols by injection of solvents into vacuum via a liquid microjet. Mixing silver atoms into ethanol by this method produced metallic silver nanoparticles. These had a broad, log-normal size distribution, with median size between 3.3 ± 1.4...

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Autores principales: McNally, Michael J., Galinis, Gediminas, Youle, Oliver, Petr, Martin, Prucek, Robert, Machala, Libor, von Haeften, Klaus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418456/
https://www.ncbi.nlm.nih.gov/pubmed/36132097
http://dx.doi.org/10.1039/c9na00347a
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author McNally, Michael J.
Galinis, Gediminas
Youle, Oliver
Petr, Martin
Prucek, Robert
Machala, Libor
von Haeften, Klaus
author_facet McNally, Michael J.
Galinis, Gediminas
Youle, Oliver
Petr, Martin
Prucek, Robert
Machala, Libor
von Haeften, Klaus
author_sort McNally, Michael J.
collection PubMed
description We achieved sputter deposition of silver atoms onto liquid alcohols by injection of solvents into vacuum via a liquid microjet. Mixing silver atoms into ethanol by this method produced metallic silver nanoparticles. These had a broad, log-normal size distribution, with median size between 3.3 ± 1.4 nm and 2.0 ± 0.7 nm, depending on experiment geometry; and a broad plasmon absorption band centred around 450 nm. We also deposited silver atoms into a solution of colloidal silica nanoparticles, generating silver-decorated silica particles with consistent decoration of almost one silver particle to each silica sphere. The silver–silica mixture showed increased colloidal stability and yield of silver, along with a narrowed size distribution and a narrower plasmon band blue-shifted to 410 nm. Significant methanol loss of 1.65 × 10(−7) mol MeOH per g per s from the mature silver–silica solutions suggests we have reproduced known silica supported silver catalysts. The excellent distribution of silver on each silica sphere shows this technique has potential to improve the distribution of catalytically active particles in supported catalysts.
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spelling pubmed-94184562022-09-20 Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet McNally, Michael J. Galinis, Gediminas Youle, Oliver Petr, Martin Prucek, Robert Machala, Libor von Haeften, Klaus Nanoscale Adv Chemistry We achieved sputter deposition of silver atoms onto liquid alcohols by injection of solvents into vacuum via a liquid microjet. Mixing silver atoms into ethanol by this method produced metallic silver nanoparticles. These had a broad, log-normal size distribution, with median size between 3.3 ± 1.4 nm and 2.0 ± 0.7 nm, depending on experiment geometry; and a broad plasmon absorption band centred around 450 nm. We also deposited silver atoms into a solution of colloidal silica nanoparticles, generating silver-decorated silica particles with consistent decoration of almost one silver particle to each silica sphere. The silver–silica mixture showed increased colloidal stability and yield of silver, along with a narrowed size distribution and a narrower plasmon band blue-shifted to 410 nm. Significant methanol loss of 1.65 × 10(−7) mol MeOH per g per s from the mature silver–silica solutions suggests we have reproduced known silica supported silver catalysts. The excellent distribution of silver on each silica sphere shows this technique has potential to improve the distribution of catalytically active particles in supported catalysts. RSC 2019-09-06 /pmc/articles/PMC9418456/ /pubmed/36132097 http://dx.doi.org/10.1039/c9na00347a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
McNally, Michael J.
Galinis, Gediminas
Youle, Oliver
Petr, Martin
Prucek, Robert
Machala, Libor
von Haeften, Klaus
Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title_full Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title_fullStr Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title_full_unstemmed Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title_short Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
title_sort silver nanoparticles by atomic vapour deposition on an alcohol micro-jet
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418456/
https://www.ncbi.nlm.nih.gov/pubmed/36132097
http://dx.doi.org/10.1039/c9na00347a
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