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Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides

In this work, we investigate the synthesis of (La(0.8)Sr(0.2))MnO(3) (LSM) in various molten salts to gain insight on the influence of molten salt ions for synthesizing materials critical for energy applications. LSM nanoparticles with a size range of ∼10–200 nm and with target stoichiometries were...

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Autores principales: Levitas, Benjamin, Piligian, Spencer, Ireland, Thomas, Gopalan, Srikanth
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9040654/
https://www.ncbi.nlm.nih.gov/pubmed/35492064
http://dx.doi.org/10.1039/d0ra04324a
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author Levitas, Benjamin
Piligian, Spencer
Ireland, Thomas
Gopalan, Srikanth
author_facet Levitas, Benjamin
Piligian, Spencer
Ireland, Thomas
Gopalan, Srikanth
author_sort Levitas, Benjamin
collection PubMed
description In this work, we investigate the synthesis of (La(0.8)Sr(0.2))MnO(3) (LSM) in various molten salts to gain insight on the influence of molten salt ions for synthesizing materials critical for energy applications. LSM nanoparticles with a size range of ∼10–200 nm and with target stoichiometries were formed from oxide precursors via feeding into KNO(3). Furthermore, feeding precursors into the melt compared to mixing and heating from room temperature results in complete formation of LSM that was otherwise unattainable using conventional molten salt synthesis methods. In LiCl–KCl eutectic, the high Lux acidity of Li(+) and Cl(−) establishes a thermodynamic barrier that impedes Sr from reacting with other precursors in solution and increases Sr stability in the melt compared to the perovskite phase. As a result, LSM will not form in a LiCl–KCl eutectic under ambient conditions. Thus, this study further explicates the molten salt synthesis for perovskites and can serve as a guide for future syntheses.
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spelling pubmed-90406542022-04-26 Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides Levitas, Benjamin Piligian, Spencer Ireland, Thomas Gopalan, Srikanth RSC Adv Chemistry In this work, we investigate the synthesis of (La(0.8)Sr(0.2))MnO(3) (LSM) in various molten salts to gain insight on the influence of molten salt ions for synthesizing materials critical for energy applications. LSM nanoparticles with a size range of ∼10–200 nm and with target stoichiometries were formed from oxide precursors via feeding into KNO(3). Furthermore, feeding precursors into the melt compared to mixing and heating from room temperature results in complete formation of LSM that was otherwise unattainable using conventional molten salt synthesis methods. In LiCl–KCl eutectic, the high Lux acidity of Li(+) and Cl(−) establishes a thermodynamic barrier that impedes Sr from reacting with other precursors in solution and increases Sr stability in the melt compared to the perovskite phase. As a result, LSM will not form in a LiCl–KCl eutectic under ambient conditions. Thus, this study further explicates the molten salt synthesis for perovskites and can serve as a guide for future syntheses. The Royal Society of Chemistry 2021-09-01 /pmc/articles/PMC9040654/ /pubmed/35492064 http://dx.doi.org/10.1039/d0ra04324a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Levitas, Benjamin
Piligian, Spencer
Ireland, Thomas
Gopalan, Srikanth
Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title_full Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title_fullStr Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title_full_unstemmed Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title_short Elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
title_sort elucidating the influence of molten salt chemistries on the synthesis and stability of perovskites oxides
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9040654/
https://www.ncbi.nlm.nih.gov/pubmed/35492064
http://dx.doi.org/10.1039/d0ra04324a
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