Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction

TiNb2O7 (TNO) compound has been pursued tremendously due to its high theoretical capacity, high potential, and excellent cycle stability. Unfortunately, an intrinsic low electronic and ionic conductivity feature has restricted its broad applications in electrochemical energy storage fields. Two-dime...

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Autores principales:	Lei Hu, Xulai Yang, Yumeng Chen, Lili Wang, Jiajia Li, Yujie Tang, Haitao Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	TiNb2O7 esterification reaction two-dimensional sheet graphene li ion batteries General Works A
Acceso en línea:	https://doaj.org/article/8a13a96478a74cda83eaaccdedf0ca59
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spelling	oai:doaj.org-article:8a13a96478a74cda83eaaccdedf0ca592021-12-01T11:16:53ZFacile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction2296-598X10.3389/fenrg.2021.794527https://doaj.org/article/8a13a96478a74cda83eaaccdedf0ca592021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.794527/fullhttps://doaj.org/toc/2296-598XTiNb2O7 (TNO) compound has been pursued tremendously due to its high theoretical capacity, high potential, and excellent cycle stability. Unfortunately, an intrinsic low electronic and ionic conductivity feature has restricted its broad applications in electrochemical energy storage fields. Two-dimensional (2D) nanostructures can effectively shorten Li-ion transport path and enhance charge transfer. Here, hierarchical structure TNO was constructed by using ethanol and acetic acid as particularly important organic chemicals of basic raw materials via a simple solvothermal reaction. Ethanol was found to play a critical role in the formation of 2D sheet structure. Meantime, reduced graphene oxide nanosheets can effectively improve electronic conductivity. As-obtained TiNb2O7 were wrapped further by graphene oxide nanosheets through a flocculation process. Their unique structure is beneficial to the final electrochemical performance. This study not only provides a general approach for the design of novel 2D nanomaterials wrapped by graphene because of the advantage of esterification reaction and flocculation reaction, but also improves the electronic and ionic conductivity simultaneously.Lei HuLei HuXulai YangYumeng ChenLili WangLili WangJiajia LiYujie TangHaitao ZhangHaitao ZhangFrontiers Media S.A.articleTiNb2O7esterification reactiontwo-dimensional sheetgrapheneli ion batteriesGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	TiNb2O7 esterification reaction two-dimensional sheet graphene li ion batteries General Works A
spellingShingle	TiNb2O7 esterification reaction two-dimensional sheet graphene li ion batteries General Works A Lei Hu Lei Hu Xulai Yang Yumeng Chen Lili Wang Lili Wang Jiajia Li Yujie Tang Haitao Zhang Haitao Zhang Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
description	TiNb2O7 (TNO) compound has been pursued tremendously due to its high theoretical capacity, high potential, and excellent cycle stability. Unfortunately, an intrinsic low electronic and ionic conductivity feature has restricted its broad applications in electrochemical energy storage fields. Two-dimensional (2D) nanostructures can effectively shorten Li-ion transport path and enhance charge transfer. Here, hierarchical structure TNO was constructed by using ethanol and acetic acid as particularly important organic chemicals of basic raw materials via a simple solvothermal reaction. Ethanol was found to play a critical role in the formation of 2D sheet structure. Meantime, reduced graphene oxide nanosheets can effectively improve electronic conductivity. As-obtained TiNb2O7 were wrapped further by graphene oxide nanosheets through a flocculation process. Their unique structure is beneficial to the final electrochemical performance. This study not only provides a general approach for the design of novel 2D nanomaterials wrapped by graphene because of the advantage of esterification reaction and flocculation reaction, but also improves the electronic and ionic conductivity simultaneously.
format	article
author	Lei Hu Lei Hu Xulai Yang Yumeng Chen Lili Wang Lili Wang Jiajia Li Yujie Tang Haitao Zhang Haitao Zhang
author_facet	Lei Hu Lei Hu Xulai Yang Yumeng Chen Lili Wang Lili Wang Jiajia Li Yujie Tang Haitao Zhang Haitao Zhang
author_sort	Lei Hu
title	Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
title_short	Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
title_full	Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
title_fullStr	Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
title_full_unstemmed	Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction
title_sort	facile construction of hierarchical tinb2o7/rgo nanoflower with robust charge storage properties for li ion batteries via an esterification reaction
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/8a13a96478a74cda83eaaccdedf0ca59
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Facile Construction of Hierarchical TiNb2O7/rGO Nanoflower With Robust Charge Storage Properties for Li Ion Batteries via an Esterification Reaction

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