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Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives

Electrochemical energy storage devices are one of the main protagonists in the ongoing technological advances in the energy field, whereby the development of efficient, sustainable, and durable storage systems aroused a great interest in the scientific community. Batteries, electrical double layer c...

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Detalles Bibliográficos
Autores principales: Mineo, Giacometta, Bruno, Elena, Mirabella, Salvo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10142086/
https://www.ncbi.nlm.nih.gov/pubmed/37111003
http://dx.doi.org/10.3390/nano13081418
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author Mineo, Giacometta
Bruno, Elena
Mirabella, Salvo
author_facet Mineo, Giacometta
Bruno, Elena
Mirabella, Salvo
author_sort Mineo, Giacometta
collection PubMed
description Electrochemical energy storage devices are one of the main protagonists in the ongoing technological advances in the energy field, whereby the development of efficient, sustainable, and durable storage systems aroused a great interest in the scientific community. Batteries, electrical double layer capacitors (EDLC), and pseudocapacitors are characterized in depth in the literature as the most powerful energy storage devices for practical applications. Pseudocapacitors bridge the gap between batteries and EDLCs, thus supplying both high energy and power densities, and transition metal oxide (TMO)-based nanostructures are used for their realization. Among them, WO(3) nanostructures inspired the scientific community, thanks to WO(3)’s excellent electrochemical stability, low cost, and abundance in nature. This review analyzes the morphological and electrochemical properties of WO(3) nanostructures and their most used synthesis techniques. Moreover, a brief description of the electrochemical characterization methods of electrodes for energy storage, such as Cyclic Voltammetry (CV), Galvanostatic Charge–Discharge (GCD), and Electrochemical Impedance Spectroscopy (EIS) are reported, to better understand the recent advances in WO(3)-based nanostructures, such as pore WO(3) nanostructures, WO(3)/carbon nanocomposites, and metal-doped WO(3) nanostructure-based electrodes for pseudocapacitor applications. This analysis is reported in terms of specific capacitance calculated as a function of current density and scan rate. Then we move to the recent progress made for the design and fabrication of WO(3)-based symmetric and asymmetric supercapacitors (SSCs and ASCs), thus studying a comparative Ragone plot of the state-of-the-art research.
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spelling pubmed-101420862023-04-29 Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives Mineo, Giacometta Bruno, Elena Mirabella, Salvo Nanomaterials (Basel) Review Electrochemical energy storage devices are one of the main protagonists in the ongoing technological advances in the energy field, whereby the development of efficient, sustainable, and durable storage systems aroused a great interest in the scientific community. Batteries, electrical double layer capacitors (EDLC), and pseudocapacitors are characterized in depth in the literature as the most powerful energy storage devices for practical applications. Pseudocapacitors bridge the gap between batteries and EDLCs, thus supplying both high energy and power densities, and transition metal oxide (TMO)-based nanostructures are used for their realization. Among them, WO(3) nanostructures inspired the scientific community, thanks to WO(3)’s excellent electrochemical stability, low cost, and abundance in nature. This review analyzes the morphological and electrochemical properties of WO(3) nanostructures and their most used synthesis techniques. Moreover, a brief description of the electrochemical characterization methods of electrodes for energy storage, such as Cyclic Voltammetry (CV), Galvanostatic Charge–Discharge (GCD), and Electrochemical Impedance Spectroscopy (EIS) are reported, to better understand the recent advances in WO(3)-based nanostructures, such as pore WO(3) nanostructures, WO(3)/carbon nanocomposites, and metal-doped WO(3) nanostructure-based electrodes for pseudocapacitor applications. This analysis is reported in terms of specific capacitance calculated as a function of current density and scan rate. Then we move to the recent progress made for the design and fabrication of WO(3)-based symmetric and asymmetric supercapacitors (SSCs and ASCs), thus studying a comparative Ragone plot of the state-of-the-art research. MDPI 2023-04-20 /pmc/articles/PMC10142086/ /pubmed/37111003 http://dx.doi.org/10.3390/nano13081418 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Mineo, Giacometta
Bruno, Elena
Mirabella, Salvo
Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title_full Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title_fullStr Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title_full_unstemmed Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title_short Advances in WO(3)-Based Supercapacitors: State-of-the-Art Research and Future Perspectives
title_sort advances in wo(3)-based supercapacitors: state-of-the-art research and future perspectives
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10142086/
https://www.ncbi.nlm.nih.gov/pubmed/37111003
http://dx.doi.org/10.3390/nano13081418
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