Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries

Abstract A self-supporting Co3O4/graphene hybrid film has been constructed via vacuum filtration of Co(OH)2 nanosheet and graphene, followed by a two-step thermal treatment. Within the hybrid film, Co3O4 nanoparticles with size of 40~60 nm uniformly in-situ grew on the surface of graphene, forming a...

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Autores principales:	Shouling Wang, Ronghua Wang, Jie Chang, Ning Hu, Chaohe Xu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ad479f87218a41a8b13397980a9135d2
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spelling	oai:doaj.org-article:ad479f87218a41a8b13397980a9135d22021-12-02T15:09:10ZSelf-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries10.1038/s41598-018-21436-42045-2322https://doaj.org/article/ad479f87218a41a8b13397980a9135d22018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-21436-4https://doaj.org/toc/2045-2322Abstract A self-supporting Co3O4/graphene hybrid film has been constructed via vacuum filtration of Co(OH)2 nanosheet and graphene, followed by a two-step thermal treatment. Within the hybrid film, Co3O4 nanoparticles with size of 40~60 nm uniformly in-situ grew on the surface of graphene, forming a novel porous and interleaved structure with strong interactions between Co3O4 nanoparticles and graphene. Such fascinating microstructures can greatly facilitate interfacial electron transportation and accommodate the volume changes upon Li ions insertion and extraction. Consequently, the binder-less hybrid film demonstrated extremely high reversible capacity (1287.7 mAh g −1 at 0.2 A g −1), excellent cycling stability and rate capability (1110 and 800 mAh g −1 at 0.5 and 1.0 A g −1, respectively).Shouling WangRonghua WangJie ChangNing HuChaohe XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shouling Wang Ronghua Wang Jie Chang Ning Hu Chaohe Xu Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
description	Abstract A self-supporting Co3O4/graphene hybrid film has been constructed via vacuum filtration of Co(OH)2 nanosheet and graphene, followed by a two-step thermal treatment. Within the hybrid film, Co3O4 nanoparticles with size of 40~60 nm uniformly in-situ grew on the surface of graphene, forming a novel porous and interleaved structure with strong interactions between Co3O4 nanoparticles and graphene. Such fascinating microstructures can greatly facilitate interfacial electron transportation and accommodate the volume changes upon Li ions insertion and extraction. Consequently, the binder-less hybrid film demonstrated extremely high reversible capacity (1287.7 mAh g −1 at 0.2 A g −1), excellent cycling stability and rate capability (1110 and 800 mAh g −1 at 0.5 and 1.0 A g −1, respectively).
format	article
author	Shouling Wang Ronghua Wang Jie Chang Ning Hu Chaohe Xu
author_facet	Shouling Wang Ronghua Wang Jie Chang Ning Hu Chaohe Xu
author_sort	Shouling Wang
title	Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
title_short	Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
title_full	Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
title_fullStr	Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
title_full_unstemmed	Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries
title_sort	self-supporting co3o4/graphene hybrid films as binder-free anode materials for lithium ion batteries
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/ad479f87218a41a8b13397980a9135d2
work_keys_str_mv	AT shoulingwang selfsupportingco3o4graphenehybridfilmsasbinderfreeanodematerialsforlithiumionbatteries AT ronghuawang selfsupportingco3o4graphenehybridfilmsasbinderfreeanodematerialsforlithiumionbatteries AT jiechang selfsupportingco3o4graphenehybridfilmsasbinderfreeanodematerialsforlithiumionbatteries AT ninghu selfsupportingco3o4graphenehybridfilmsasbinderfreeanodematerialsforlithiumionbatteries AT chaohexu selfsupportingco3o4graphenehybridfilmsasbinderfreeanodematerialsforlithiumionbatteries
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Self-supporting Co3O4/Graphene Hybrid Films as Binder-free Anode Materials for Lithium Ion Batteries

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