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Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites

The formation of superconducting nanocomposites from preformed nanocrystals is still not well understood. Here, we examine the case of ZrO(2) nanocrystals in a YBa(2)Cu(3)O(7−x) matrix. First we analyzed the preformed ZrO(2) nanocrystals via atomic pair distribution function analysis and found that...

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Autores principales: Rijckaert, Hannes, De Roo, Jonathan, Van Zele, Matthias, Banerjee, Soham, Huhtinen, Hannu, Paturi, Petriina, Bennewitz, Jan, Billinge, Simon J. L., Bäcker, Michael, De Buysser, Klaartje, Van Driessche, Isabel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6073135/
https://www.ncbi.nlm.nih.gov/pubmed/29937505
http://dx.doi.org/10.3390/ma11071066
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author Rijckaert, Hannes
De Roo, Jonathan
Van Zele, Matthias
Banerjee, Soham
Huhtinen, Hannu
Paturi, Petriina
Bennewitz, Jan
Billinge, Simon J. L.
Bäcker, Michael
De Buysser, Klaartje
Van Driessche, Isabel
author_facet Rijckaert, Hannes
De Roo, Jonathan
Van Zele, Matthias
Banerjee, Soham
Huhtinen, Hannu
Paturi, Petriina
Bennewitz, Jan
Billinge, Simon J. L.
Bäcker, Michael
De Buysser, Klaartje
Van Driessche, Isabel
author_sort Rijckaert, Hannes
collection PubMed
description The formation of superconducting nanocomposites from preformed nanocrystals is still not well understood. Here, we examine the case of ZrO(2) nanocrystals in a YBa(2)Cu(3)O(7−x) matrix. First we analyzed the preformed ZrO(2) nanocrystals via atomic pair distribution function analysis and found that the nanocrystals have a distorted tetragonal crystal structure. Second, we investigated the influence of various surface ligands attached to the ZrO(2) nanocrystals on the distribution of metal ions in the pyrolyzed matrix via secondary ion mass spectroscopy technique. The choice of stabilizing ligand is crucial in order to obtain good superconducting nanocomposite films with vortex pinning. Short, carboxylate based ligands lead to poor superconducting properties due to the inhomogeneity of metal content in the pyrolyzed matrix. Counter-intuitively, a phosphonate ligand with long chains does not disturb the growth of YBa(2)Cu(3)O(7−x). Even more surprisingly, bisphosphonate polymeric ligands provide good colloidal stability in solution but do not prevent coagulation in the final film, resulting in poor pinning. These results thus shed light on the various stages of the superconducting nanocomposite formation.
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spelling pubmed-60731352018-08-13 Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites Rijckaert, Hannes De Roo, Jonathan Van Zele, Matthias Banerjee, Soham Huhtinen, Hannu Paturi, Petriina Bennewitz, Jan Billinge, Simon J. L. Bäcker, Michael De Buysser, Klaartje Van Driessche, Isabel Materials (Basel) Article The formation of superconducting nanocomposites from preformed nanocrystals is still not well understood. Here, we examine the case of ZrO(2) nanocrystals in a YBa(2)Cu(3)O(7−x) matrix. First we analyzed the preformed ZrO(2) nanocrystals via atomic pair distribution function analysis and found that the nanocrystals have a distorted tetragonal crystal structure. Second, we investigated the influence of various surface ligands attached to the ZrO(2) nanocrystals on the distribution of metal ions in the pyrolyzed matrix via secondary ion mass spectroscopy technique. The choice of stabilizing ligand is crucial in order to obtain good superconducting nanocomposite films with vortex pinning. Short, carboxylate based ligands lead to poor superconducting properties due to the inhomogeneity of metal content in the pyrolyzed matrix. Counter-intuitively, a phosphonate ligand with long chains does not disturb the growth of YBa(2)Cu(3)O(7−x). Even more surprisingly, bisphosphonate polymeric ligands provide good colloidal stability in solution but do not prevent coagulation in the final film, resulting in poor pinning. These results thus shed light on the various stages of the superconducting nanocomposite formation. MDPI 2018-06-23 /pmc/articles/PMC6073135/ /pubmed/29937505 http://dx.doi.org/10.3390/ma11071066 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rijckaert, Hannes
De Roo, Jonathan
Van Zele, Matthias
Banerjee, Soham
Huhtinen, Hannu
Paturi, Petriina
Bennewitz, Jan
Billinge, Simon J. L.
Bäcker, Michael
De Buysser, Klaartje
Van Driessche, Isabel
Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title_full Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title_fullStr Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title_full_unstemmed Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title_short Pair Distribution Function Analysis of ZrO(2) Nanocrystals and Insights in the Formation of ZrO(2)-YBa(2)Cu(3)O(7) Nanocomposites
title_sort pair distribution function analysis of zro(2) nanocrystals and insights in the formation of zro(2)-yba(2)cu(3)o(7) nanocomposites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6073135/
https://www.ncbi.nlm.nih.gov/pubmed/29937505
http://dx.doi.org/10.3390/ma11071066
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