Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency

Compact capacitive energy storing/harvesting systems could play a key role in the urgent need for more energy-efficient technologies to address both energy and environmental issues. Therein, the purpose of the present work is to develop and investigate epoxy/BaMnO<sub>4</sub> nanocomposi...

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Autores principales:	Despoina I. Batsouli, Anastasios C. Patsidis, Georgios C. Psarras
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	nanodielectrics nanocomposites epoxy resin barium manganate dielectric response energy storage/harvesting Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/7cdd659a2fdb472fb79a9a3e5d1f775c
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spelling	oai:doaj.org-article:7cdd659a2fdb472fb79a9a3e5d1f775c2021-11-25T17:24:47ZEpoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency10.3390/electronics102228032079-9292https://doaj.org/article/7cdd659a2fdb472fb79a9a3e5d1f775c2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2803https://doaj.org/toc/2079-9292Compact capacitive energy storing/harvesting systems could play a key role in the urgent need for more energy-efficient technologies to address both energy and environmental issues. Therein, the purpose of the present work is to develop and investigate epoxy/BaMnO<sub>4</sub> nanocomposites at various filler concentrations, which could be applicable as compact materials systems for energy storage and harvesting. Broadband dielectric spectroscopy was used for studying the dielectric properties and the relaxation processes of the examined nanodielectrics. The energy storing/retrieving ability of the nanocomposites was also evaluated via DC charge–discharge experiments. The coefficient of energy efficiency (n<sub>eff</sub>) was found for all prepared nanocomposites to evaluate the energy performance of the systems. Dielectric data divulge the existence of two matrix-related relaxations, i.e., α-mode and β-mode, attributed to the glass-to-rubber transition of the polymer matrix and re-orientation of polar side groups, respectively. Interfacial polarization was also identified in the low-frequency and high-temperature region. The 7 phr BaMnO<sub>4</sub> nanocomposite exhibits the best performance in terms of the stored and harvested energies compared to all systems. On the other hand, the 5 phr, 3 phr and 1 phr nanocomposites display optimum energy performance, reaching high values of n<sub>eff</sub>.Despoina I. BatsouliAnastasios C. PatsidisGeorgios C. PsarrasMDPI AGarticlenanodielectricsnanocompositesepoxy resinbarium manganatedielectric responseenergy storage/harvestingElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2803, p 2803 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanodielectrics nanocomposites epoxy resin barium manganate dielectric response energy storage/harvesting Electronics TK7800-8360
spellingShingle	nanodielectrics nanocomposites epoxy resin barium manganate dielectric response energy storage/harvesting Electronics TK7800-8360 Despoina I. Batsouli Anastasios C. Patsidis Georgios C. Psarras Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
description	Compact capacitive energy storing/harvesting systems could play a key role in the urgent need for more energy-efficient technologies to address both energy and environmental issues. Therein, the purpose of the present work is to develop and investigate epoxy/BaMnO<sub>4</sub> nanocomposites at various filler concentrations, which could be applicable as compact materials systems for energy storage and harvesting. Broadband dielectric spectroscopy was used for studying the dielectric properties and the relaxation processes of the examined nanodielectrics. The energy storing/retrieving ability of the nanocomposites was also evaluated via DC charge–discharge experiments. The coefficient of energy efficiency (n<sub>eff</sub>) was found for all prepared nanocomposites to evaluate the energy performance of the systems. Dielectric data divulge the existence of two matrix-related relaxations, i.e., α-mode and β-mode, attributed to the glass-to-rubber transition of the polymer matrix and re-orientation of polar side groups, respectively. Interfacial polarization was also identified in the low-frequency and high-temperature region. The 7 phr BaMnO<sub>4</sub> nanocomposite exhibits the best performance in terms of the stored and harvested energies compared to all systems. On the other hand, the 5 phr, 3 phr and 1 phr nanocomposites display optimum energy performance, reaching high values of n<sub>eff</sub>.
format	article
author	Despoina I. Batsouli Anastasios C. Patsidis Georgios C. Psarras
author_facet	Despoina I. Batsouli Anastasios C. Patsidis Georgios C. Psarras
author_sort	Despoina I. Batsouli
title	Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
title_short	Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
title_full	Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
title_fullStr	Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
title_full_unstemmed	Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency
title_sort	epoxy-based/bamno<sub>4</sub> nanodielectrics: dielectric response and energy storage efficiency
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7cdd659a2fdb472fb79a9a3e5d1f775c
work_keys_str_mv	AT despoinaibatsouli epoxybasedbamnosub4subnanodielectricsdielectricresponseandenergystorageefficiency AT anastasioscpatsidis epoxybasedbamnosub4subnanodielectricsdielectricresponseandenergystorageefficiency AT georgioscpsarras epoxybasedbamnosub4subnanodielectricsdielectricresponseandenergystorageefficiency
_version_	1718412417182990336

Epoxy-Based/BaMnO<sub>4</sub> Nanodielectrics: Dielectric Response and Energy Storage Efficiency

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