In-situ Conversion of Multiwalled Carbon Nanotubes to GrapheneNanosheets: An Increasing Capacity Anode for Li Ion Batteries
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
In-situ Conversion of Multiwalled Carbon Nanotubes to GrapheneNanosheets: An Increasing Capacity Anode for Li Ion Batteries
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| Creator |
Elizabeth, I.
Singh, B.P. Bijoy, T.K. Reddy, V.R. Karthikeyan, G. Singh, V.N. Dhakate, S.R. Murugan, P. Gopukumar, S. |
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| Subject |
Lithium batteries
Nanotechnology Electrochemical Power Sources |
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| Description |
A unique in-situ morphology transition from multiwall carbon nanotubes (MWCNT) to graphene
nanosheets (GNS) upon Li intercalation results in enormous increase in capacity of SnO2/MWCNT
composites anode during cycling. The anode capacity increases from 330 mAhg�1 to 500 mAhg�1 which
is more than 50% of its initial capacity when cycled at a current density of 200 mAg�1. Further when the
sample is cycled at a high current density of 500 mAg�1 the composite sample shows a stable capacity of
400 mAhg�1 for 100 cycles which is attributed to the complete transition of MWCNT to GNSs as
confirmed from the high resolution transmission electron microscope (HRTEM) images. First principles
density functional theory calculations have been carried out to validate possibility of this morphological
transition upon Li intercalation and the results agree well with the experimental
findings.
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| Publisher |
Elsevier B.V.
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| Date |
2017-02-10
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3228/1/063-2017.pdf
Elizabeth, I. and Singh, B.P. and Bijoy, T.K. and Reddy, V.R. and Karthikeyan, G. and Singh, V.N. and Dhakate, S.R. and Murugan, P. and Gopukumar, S. (2017) In-situ Conversion of Multiwalled Carbon Nanotubes to GrapheneNanosheets: An Increasing Capacity Anode for Li Ion Batteries. Electrochim Acta, 231. pp. 255-263. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3228/ |
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