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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...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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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. |
format | Online Article Text |
id | pubmed-9064730 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
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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