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Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries

Titanium niobium oxides (TNOs), benefitting from their large specific capacity and Wadsley–Roth shear structure, are competitive anode materials for high-energy density and high-rate lithium-ion batteries. Herein, carbon and oxygen vacancy co-modified TiNb(6)O(17) (A-TNO) was synthesized through a f...

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Autores principales: Shang, Yunfan, Lu, Suyang, Zheng, Wei, Wang, Rui, Liang, Zi, Huang, Yushuo, Mei, Jun, Yang, Ye, Zeng, Wenwen, Zhan, Haoran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9053084/
https://www.ncbi.nlm.nih.gov/pubmed/35497001
http://dx.doi.org/10.1039/d2ra01757a
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author Shang, Yunfan
Lu, Suyang
Zheng, Wei
Wang, Rui
Liang, Zi
Huang, Yushuo
Mei, Jun
Yang, Ye
Zeng, Wenwen
Zhan, Haoran
author_facet Shang, Yunfan
Lu, Suyang
Zheng, Wei
Wang, Rui
Liang, Zi
Huang, Yushuo
Mei, Jun
Yang, Ye
Zeng, Wenwen
Zhan, Haoran
author_sort Shang, Yunfan
collection PubMed
description Titanium niobium oxides (TNOs), benefitting from their large specific capacity and Wadsley–Roth shear structure, are competitive anode materials for high-energy density and high-rate lithium-ion batteries. Herein, carbon and oxygen vacancy co-modified TiNb(6)O(17) (A-TNO) was synthesized through a facile sol–gel reaction with subsequent heat treatment and ball-milling. Characterizations indicated that A-TNO is composed of nanosized primary particles, and the carbon content is about 0.7 wt%. The nanoparticles increase the contact area of the electrode and electrolyte and shorten the lithium-ion diffusion distance. The carbon and oxygen vacancies decrease the charge transfer resistance and enhance the Li-ion diffusion coefficient of the obtained anode material. As a result of these advantages, A-TNO exhibits excellent rate performance (208 and 177 mA h g(−1) at 10C and 20C, respectively). This work reveals that A-TNO possesses good electrochemical performance and has a facile preparation process, thus A-TNO is believed to be a potential anode material for large-scale applications.
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spelling pubmed-90530842022-04-29 Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries Shang, Yunfan Lu, Suyang Zheng, Wei Wang, Rui Liang, Zi Huang, Yushuo Mei, Jun Yang, Ye Zeng, Wenwen Zhan, Haoran RSC Adv Chemistry Titanium niobium oxides (TNOs), benefitting from their large specific capacity and Wadsley–Roth shear structure, are competitive anode materials for high-energy density and high-rate lithium-ion batteries. Herein, carbon and oxygen vacancy co-modified TiNb(6)O(17) (A-TNO) was synthesized through a facile sol–gel reaction with subsequent heat treatment and ball-milling. Characterizations indicated that A-TNO is composed of nanosized primary particles, and the carbon content is about 0.7 wt%. The nanoparticles increase the contact area of the electrode and electrolyte and shorten the lithium-ion diffusion distance. The carbon and oxygen vacancies decrease the charge transfer resistance and enhance the Li-ion diffusion coefficient of the obtained anode material. As a result of these advantages, A-TNO exhibits excellent rate performance (208 and 177 mA h g(−1) at 10C and 20C, respectively). This work reveals that A-TNO possesses good electrochemical performance and has a facile preparation process, thus A-TNO is believed to be a potential anode material for large-scale applications. The Royal Society of Chemistry 2022-04-29 /pmc/articles/PMC9053084/ /pubmed/35497001 http://dx.doi.org/10.1039/d2ra01757a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Shang, Yunfan
Lu, Suyang
Zheng, Wei
Wang, Rui
Liang, Zi
Huang, Yushuo
Mei, Jun
Yang, Ye
Zeng, Wenwen
Zhan, Haoran
Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title_full Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title_fullStr Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title_full_unstemmed Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title_short Facile synthesis of carbon and oxygen vacancy co-modified TiNb(6)O(17) as an anode material for lithium-ion batteries
title_sort facile synthesis of carbon and oxygen vacancy co-modified tinb(6)o(17) as an anode material for lithium-ion batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9053084/
https://www.ncbi.nlm.nih.gov/pubmed/35497001
http://dx.doi.org/10.1039/d2ra01757a
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