Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance

The CNTs/rGO/NG composite lithiumion battery anode material was synthesized by thermal reducing, using graphene oxide (GO) and carbon nanotubes (CNTs) as precursors for a 5 ∶ 3 proportion. The morphology, structure, and electrochemical performance of the composite were characterized by scanning elec...

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Main Authors: DENG Ling-feng, PENG Hui-yan, QIN Yu-kun, WU Yi-qiang
Format: Article
Language:zho
Published: Journal of Materials Engineering 2017-04-01
Series:Cailiao gongcheng
Subjects:
Online Access:http://jme.biam.ac.cn/CN/Y2017/V45/I4/121
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author DENG Ling-feng
PENG Hui-yan
QIN Yu-kun
WU Yi-qiang
author_facet DENG Ling-feng
PENG Hui-yan
QIN Yu-kun
WU Yi-qiang
author_sort DENG Ling-feng
collection DOAJ
description The CNTs/rGO/NG composite lithiumion battery anode material was synthesized by thermal reducing, using graphene oxide (GO) and carbon nanotubes (CNTs) as precursors for a 5 ∶ 3 proportion. The morphology, structure, and electrochemical performance of the composite were characterized by scanning electron microscopy(SEM), X-ray diffractometry(XRD), Fourier transform infrared spectra (FTIR) and electrochemical measurements. The results show that reduced graphene oxide and carbon nanotubes form a perfect three-dimensional network structure on the surface of natural graphite. CNTs/rGO/NG composite has good rate performance and cycle life,compared with pure natural graphite.The initial discharge capacity of designed anode is 479mAh/g at 0.1C, the reversible capacity up to 473mAh/g after 100 cycles,the capacity is still 439.5mAh/g, the capacity retention rate is 92%,and the capacity is 457, 433, 394mAh/g at 0.5, 1, 5C, respectively.
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spelling doaj.art-20efcf913d644b54b352c9d2c33b0b2a2023-01-03T01:58:09ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812017-04-0145412112710.11868/j.issn.1001-4381.2016.001044201704001044Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical PerformanceDENG Ling-feng0PENG Hui-yan1QIN Yu-kun2WU Yi-qiang3School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaSchool of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaSchool of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaSchool of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaThe CNTs/rGO/NG composite lithiumion battery anode material was synthesized by thermal reducing, using graphene oxide (GO) and carbon nanotubes (CNTs) as precursors for a 5 ∶ 3 proportion. The morphology, structure, and electrochemical performance of the composite were characterized by scanning electron microscopy(SEM), X-ray diffractometry(XRD), Fourier transform infrared spectra (FTIR) and electrochemical measurements. The results show that reduced graphene oxide and carbon nanotubes form a perfect three-dimensional network structure on the surface of natural graphite. CNTs/rGO/NG composite has good rate performance and cycle life,compared with pure natural graphite.The initial discharge capacity of designed anode is 479mAh/g at 0.1C, the reversible capacity up to 473mAh/g after 100 cycles,the capacity is still 439.5mAh/g, the capacity retention rate is 92%,and the capacity is 457, 433, 394mAh/g at 0.5, 1, 5C, respectively.http://jme.biam.ac.cn/CN/Y2017/V45/I4/121carbon nanotubesgraphene oxideanode materialelectrochemical performance3D network structure
spellingShingle DENG Ling-feng
PENG Hui-yan
QIN Yu-kun
WU Yi-qiang
Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
Cailiao gongcheng
carbon nanotubes
graphene oxide
anode material
electrochemical performance
3D network structure
title Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
title_full Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
title_fullStr Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
title_full_unstemmed Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
title_short Combination Carbon Nanotubes with Graphene Modified Natural Graphite and Its Electrochemical Performance
title_sort combination carbon nanotubes with graphene modified natural graphite and its electrochemical performance
topic carbon nanotubes
graphene oxide
anode material
electrochemical performance
3D network structure
url http://jme.biam.ac.cn/CN/Y2017/V45/I4/121
work_keys_str_mv AT denglingfeng combinationcarbonnanotubeswithgraphenemodifiednaturalgraphiteanditselectrochemicalperformance
AT penghuiyan combinationcarbonnanotubeswithgraphenemodifiednaturalgraphiteanditselectrochemicalperformance
AT qinyukun combinationcarbonnanotubeswithgraphenemodifiednaturalgraphiteanditselectrochemicalperformance
AT wuyiqiang combinationcarbonnanotubeswithgraphenemodifiednaturalgraphiteanditselectrochemicalperformance