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New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites
The results of XRD, FTIR and differential scanning calorimetry (DSC) studies of empty porous silica matrices filled with binary mixtures of K(1–x)Ag(x)NO(3) (x = 0.05, 0.10) are reported in comparison with those obtained for bulk salts in the temperature range of structural phase transitions. Scanni...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503263/ https://www.ncbi.nlm.nih.gov/pubmed/32825670 http://dx.doi.org/10.3390/ma13173698 |
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author | Rysiakiewicz-Pasek, Ewa Antropova, Tatiana Polyakova, Irina Pshenko, Olga Ciżman, Agnieszka |
author_facet | Rysiakiewicz-Pasek, Ewa Antropova, Tatiana Polyakova, Irina Pshenko, Olga Ciżman, Agnieszka |
author_sort | Rysiakiewicz-Pasek, Ewa |
collection | PubMed |
description | The results of XRD, FTIR and differential scanning calorimetry (DSC) studies of empty porous silica matrices filled with binary mixtures of K(1–x)Ag(x)NO(3) (x = 0.05, 0.10) are reported in comparison with those obtained for bulk salts in the temperature range of structural phase transitions. Scanning electron microscopic data of the studied empty macroporous and microporous glasses confirmed differences in the pore morphology associated with the presence of silica gel. Accordingly, XRD and FTIR samples contain crystalline phase of KNO(3) and AgNO(3). The results of calorimetric investigation of porous glasses filled with binary mixtures of K(1–x)Ag(x)NO(3) (x = 0.05, 0.10) are presented. The results show that in the K(1–x)Ag(x)NO(3) nanocomposites, anomalies associated with phase transitions were detected. An influence of the mean value of pores sizes on the ferroelectric phase transition temperatures of K(1–x)Ag(x)NO(3) nanocrystals embedded into the porous matrices was determined. The impact of pore space structure on the phase transitions of ferroics nanocomposites was discussed. |
format | Online Article Text |
id | pubmed-7503263 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75032632020-09-23 New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites Rysiakiewicz-Pasek, Ewa Antropova, Tatiana Polyakova, Irina Pshenko, Olga Ciżman, Agnieszka Materials (Basel) Article The results of XRD, FTIR and differential scanning calorimetry (DSC) studies of empty porous silica matrices filled with binary mixtures of K(1–x)Ag(x)NO(3) (x = 0.05, 0.10) are reported in comparison with those obtained for bulk salts in the temperature range of structural phase transitions. Scanning electron microscopic data of the studied empty macroporous and microporous glasses confirmed differences in the pore morphology associated with the presence of silica gel. Accordingly, XRD and FTIR samples contain crystalline phase of KNO(3) and AgNO(3). The results of calorimetric investigation of porous glasses filled with binary mixtures of K(1–x)Ag(x)NO(3) (x = 0.05, 0.10) are presented. The results show that in the K(1–x)Ag(x)NO(3) nanocomposites, anomalies associated with phase transitions were detected. An influence of the mean value of pores sizes on the ferroelectric phase transition temperatures of K(1–x)Ag(x)NO(3) nanocrystals embedded into the porous matrices was determined. The impact of pore space structure on the phase transitions of ferroics nanocomposites was discussed. MDPI 2020-08-21 /pmc/articles/PMC7503263/ /pubmed/32825670 http://dx.doi.org/10.3390/ma13173698 Text en © 2020 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 Rysiakiewicz-Pasek, Ewa Antropova, Tatiana Polyakova, Irina Pshenko, Olga Ciżman, Agnieszka New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title | New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title_full | New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title_fullStr | New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title_full_unstemmed | New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title_short | New Insight into Phase Transitions of Porous Glass-Based Ferroelectric Nanocomposites |
title_sort | new insight into phase transitions of porous glass-based ferroelectric nanocomposites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503263/ https://www.ncbi.nlm.nih.gov/pubmed/32825670 http://dx.doi.org/10.3390/ma13173698 |
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