Controlled synthesis of various Fe2O3 morphologies as energy storage materials

Abstract Air pollution from vehicle emissions is a major problem in developing countries. Consequently, the use of iron-based rechargeable batteries, which is an effective method of reducing air pollution, have been extensively studied for electric vehicles. The structures and morphologies of iron p...

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Autores principales:	Bui Thi Hang, Trinh Tuan Anh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5cb1cf5dc59d407eb2a284be689d1c4e
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spelling	oai:doaj.org-article:5cb1cf5dc59d407eb2a284be689d1c4e2021-12-02T13:35:03ZControlled synthesis of various Fe2O3 morphologies as energy storage materials10.1038/s41598-021-84755-z2045-2322https://doaj.org/article/5cb1cf5dc59d407eb2a284be689d1c4e2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84755-zhttps://doaj.org/toc/2045-2322Abstract Air pollution from vehicle emissions is a major problem in developing countries. Consequently, the use of iron-based rechargeable batteries, which is an effective method of reducing air pollution, have been extensively studied for electric vehicles. The structures and morphologies of iron particles significantly affect the cycle performance of iron-based rechargeable batteries. The synthesis parameters for these iron materials also remarkably influence their structures, shapes, sizes, and electrochemical properties. In this study, we fabricated α-Fe2O3 materials with various shapes and sizes via a facile hydrothermal route and investigated the effects of raw materials on their structures, morphologies, and properties. The structural characteristics of the synthesized iron oxides were studied via X-ray diffraction using scanning electron microscopy. Results indicate that changing the concentration of raw materials modified the structure and morphology of the synthesized α-Fe2O3 particles, that is, the desired shape and size of α-Fe2O3 can be controlled. The effects of the structure and morphology of α-Fe2O3 particles on their electrochemical characteristics were investigated. The results show that the morphology and shape of the iron oxide particles remarkably affected the redox reaction rate and discharge capacity of the Fe2O3/C composite electrodes. Among the synthesized α-Fe2O3 materials, the cubic-shaped α-Fe2O3 exhibited the highest discharge capacity. This material is a potential candidate for application in iron-based aqueous batteries. Our results may facilitate not only the controlled synthesis of α-Fe2O3 nanoparticles for potential technical applications but also the production of electrode materials with high capacity and good cycle performance for iron-based rechargeable batteries.Bui Thi HangTrinh Tuan AnhNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bui Thi Hang Trinh Tuan Anh Controlled synthesis of various Fe2O3 morphologies as energy storage materials
description	Abstract Air pollution from vehicle emissions is a major problem in developing countries. Consequently, the use of iron-based rechargeable batteries, which is an effective method of reducing air pollution, have been extensively studied for electric vehicles. The structures and morphologies of iron particles significantly affect the cycle performance of iron-based rechargeable batteries. The synthesis parameters for these iron materials also remarkably influence their structures, shapes, sizes, and electrochemical properties. In this study, we fabricated α-Fe2O3 materials with various shapes and sizes via a facile hydrothermal route and investigated the effects of raw materials on their structures, morphologies, and properties. The structural characteristics of the synthesized iron oxides were studied via X-ray diffraction using scanning electron microscopy. Results indicate that changing the concentration of raw materials modified the structure and morphology of the synthesized α-Fe2O3 particles, that is, the desired shape and size of α-Fe2O3 can be controlled. The effects of the structure and morphology of α-Fe2O3 particles on their electrochemical characteristics were investigated. The results show that the morphology and shape of the iron oxide particles remarkably affected the redox reaction rate and discharge capacity of the Fe2O3/C composite electrodes. Among the synthesized α-Fe2O3 materials, the cubic-shaped α-Fe2O3 exhibited the highest discharge capacity. This material is a potential candidate for application in iron-based aqueous batteries. Our results may facilitate not only the controlled synthesis of α-Fe2O3 nanoparticles for potential technical applications but also the production of electrode materials with high capacity and good cycle performance for iron-based rechargeable batteries.
format	article
author	Bui Thi Hang Trinh Tuan Anh
author_facet	Bui Thi Hang Trinh Tuan Anh
author_sort	Bui Thi Hang
title	Controlled synthesis of various Fe2O3 morphologies as energy storage materials
title_short	Controlled synthesis of various Fe2O3 morphologies as energy storage materials
title_full	Controlled synthesis of various Fe2O3 morphologies as energy storage materials
title_fullStr	Controlled synthesis of various Fe2O3 morphologies as energy storage materials
title_full_unstemmed	Controlled synthesis of various Fe2O3 morphologies as energy storage materials
title_sort	controlled synthesis of various fe2o3 morphologies as energy storage materials
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5cb1cf5dc59d407eb2a284be689d1c4e
work_keys_str_mv	AT buithihang controlledsynthesisofvariousfe2o3morphologiesasenergystoragematerials AT trinhtuananh controlledsynthesisofvariousfe2o3morphologiesasenergystoragematerials
_version_	1718392737722531840

Controlled synthesis of various Fe2O3 morphologies as energy storage materials

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