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Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles

The single-step incorporation of multiple immiscible elements into colloidal high-entropy alloy (HEA) nanoparticles has manifold technological potential, but it continues to be a challenge for state-of-the-art synthesis methods. Hence, the development of a synthesis approach by which the chemical co...

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Autores principales: Waag, Friedrich, Li, Yao, Ziefuß, Anna Rosa, Bertin, Erwan, Kamp, Marius, Duppel, Viola, Marzun, Galina, Kienle, Lorenz, Barcikowski, Stephan, Gökce, Bilal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064730/
https://www.ncbi.nlm.nih.gov/pubmed/35515245
http://dx.doi.org/10.1039/c9ra03254a
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author Waag, Friedrich
Li, Yao
Ziefuß, Anna Rosa
Bertin, Erwan
Kamp, Marius
Duppel, Viola
Marzun, Galina
Kienle, Lorenz
Barcikowski, Stephan
Gökce, Bilal
author_facet Waag, Friedrich
Li, Yao
Ziefuß, Anna Rosa
Bertin, Erwan
Kamp, Marius
Duppel, Viola
Marzun, Galina
Kienle, Lorenz
Barcikowski, Stephan
Gökce, Bilal
author_sort Waag, Friedrich
collection PubMed
description The single-step incorporation of multiple immiscible elements into colloidal high-entropy alloy (HEA) nanoparticles has manifold technological potential, but it continues to be a challenge for state-of-the-art synthesis methods. Hence, the development of a synthesis approach by which the chemical composition and phase of colloidal HEA nanoparticles can be controlled could lead to a new pool of nanoalloys with unparalleled functionalities. Herein, this study reports the single-step synthesis of colloidal CoCrFeMnNi HEA nanoparticles with targeted equimolar stoichiometry and diameters less than 5 nm by liquid-phase, ultrashort-pulsed laser ablation of the consolidated and heat-treated micropowders of the five constituent metals. Further, the scalability of the process with an unprecedented productivity of 3 grams of colloidal HEA nanoparticles per hour is demonstrated. Electrochemical analysis reveals a unique redox behavior of the particles' surfaces in an alkaline environment and a potential for future application as a heterogeneous catalyst for the oxygen evolution reaction.
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spelling pubmed-90647302022-05-04 Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles Waag, Friedrich Li, Yao Ziefuß, Anna Rosa Bertin, Erwan Kamp, Marius Duppel, Viola Marzun, Galina Kienle, Lorenz Barcikowski, Stephan Gökce, Bilal RSC Adv Chemistry The single-step incorporation of multiple immiscible elements into colloidal high-entropy alloy (HEA) nanoparticles has manifold technological potential, but it continues to be a challenge for state-of-the-art synthesis methods. Hence, the development of a synthesis approach by which the chemical composition and phase of colloidal HEA nanoparticles can be controlled could lead to a new pool of nanoalloys with unparalleled functionalities. Herein, this study reports the single-step synthesis of colloidal CoCrFeMnNi HEA nanoparticles with targeted equimolar stoichiometry and diameters less than 5 nm by liquid-phase, ultrashort-pulsed laser ablation of the consolidated and heat-treated micropowders of the five constituent metals. Further, the scalability of the process with an unprecedented productivity of 3 grams of colloidal HEA nanoparticles per hour is demonstrated. Electrochemical analysis reveals a unique redox behavior of the particles' surfaces in an alkaline environment and a potential for future application as a heterogeneous catalyst for the oxygen evolution reaction. The Royal Society of Chemistry 2019-06-12 /pmc/articles/PMC9064730/ /pubmed/35515245 http://dx.doi.org/10.1039/c9ra03254a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Waag, Friedrich
Li, Yao
Ziefuß, Anna Rosa
Bertin, Erwan
Kamp, Marius
Duppel, Viola
Marzun, Galina
Kienle, Lorenz
Barcikowski, Stephan
Gökce, Bilal
Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title_full Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title_fullStr Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title_full_unstemmed Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title_short Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
title_sort kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064730/
https://www.ncbi.nlm.nih.gov/pubmed/35515245
http://dx.doi.org/10.1039/c9ra03254a
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