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Article: In situ transmission electron microscopy of electrochemical lithiation, delithiation and deformation of individual graphene nanoribbons

TitleIn situ transmission electron microscopy of electrochemical lithiation, delithiation and deformation of individual graphene nanoribbons
Authors
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/carbon
Citation
Carbon, 2012, v. 50 n. 10, p. 3836-3844 How to Cite?
Abstract
We report an in situ transmission electron microscopy study of the electrochemical behavior of few-layer graphene nanoribbons (GNRs) synthesized by longitudinal splitting the multi-walled carbon nanotubes (MWCNTs). Upon lithiation, the GNRs were covered by a nanocrystalline lithium oxide layer attached to the surfaces and edges of the GNRs, most of which were removed upon delithiation, indicating that the lithiation/delithiation processes occurred predominantly at the surfaces of GNRs. The lithiated GNRs were mechanically robust during the tension and compression tests, in sharp contrast to the easy and brittle fracture of the lithiated MWCNTs. This difference is attributed to the unconfined stacking of planar carbon layers in GNRs leading to a weak coupling between the intralayer and interlayer deformations, as opposed to the cylindrically confined carbon nanotubes where the interlayer lithium produces large tensile hoop stresses within the circumferentially-closed carbon layers, causing the ease of brittle fracture. These results suggest substantial promise of graphene for building durable batteries. © 2012 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/168631
ISSN
2013 Impact Factor: 6.160
2013 SCImago Journal Rankings: 2.414
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, XHen_US
dc.contributor.authorWang, JWen_US
dc.contributor.authorLiu, Yen_US
dc.contributor.authorZheng, Hen_US
dc.contributor.authorKushima, Aen_US
dc.contributor.authorHuang, Sen_US
dc.contributor.authorZhu, Ten_US
dc.contributor.authorMao, SXen_US
dc.contributor.authorLi, Jen_US
dc.contributor.authorZhang, Sen_US
dc.contributor.authorLu, Wen_US
dc.contributor.authorTour, JMen_US
dc.contributor.authorHuang, JYen_US
dc.date.accessioned2012-10-08T03:21:48Z-
dc.date.available2012-10-08T03:21:48Z-
dc.date.issued2012en_US
dc.identifier.citationCarbon, 2012, v. 50 n. 10, p. 3836-3844en_US
dc.identifier.issn0008-6223en_US
dc.identifier.urihttp://hdl.handle.net/10722/168631-
dc.description.abstractWe report an in situ transmission electron microscopy study of the electrochemical behavior of few-layer graphene nanoribbons (GNRs) synthesized by longitudinal splitting the multi-walled carbon nanotubes (MWCNTs). Upon lithiation, the GNRs were covered by a nanocrystalline lithium oxide layer attached to the surfaces and edges of the GNRs, most of which were removed upon delithiation, indicating that the lithiation/delithiation processes occurred predominantly at the surfaces of GNRs. The lithiated GNRs were mechanically robust during the tension and compression tests, in sharp contrast to the easy and brittle fracture of the lithiated MWCNTs. This difference is attributed to the unconfined stacking of planar carbon layers in GNRs leading to a weak coupling between the intralayer and interlayer deformations, as opposed to the cylindrically confined carbon nanotubes where the interlayer lithium produces large tensile hoop stresses within the circumferentially-closed carbon layers, causing the ease of brittle fracture. These results suggest substantial promise of graphene for building durable batteries. © 2012 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/carbonen_US
dc.relation.ispartofCarbonen_US
dc.titleIn situ transmission electron microscopy of electrochemical lithiation, delithiation and deformation of individual graphene nanoribbonsen_US
dc.typeArticleen_US
dc.identifier.emailLu, W:luwei@hku.hken_US
dc.identifier.authorityLu, W=rp00754en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.carbon.2012.04.025en_US
dc.identifier.scopuseid_2-s2.0-84861602380en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84861602380&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume50en_US
dc.identifier.issue10en_US
dc.identifier.spage3836en_US
dc.identifier.epage3844en_US
dc.identifier.isiWOS:000305851700055-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLiu, XH=55095836600en_US
dc.identifier.scopusauthoridWang, JW=42062429900en_US
dc.identifier.scopusauthoridLiu, Y=55207151200en_US
dc.identifier.scopusauthoridZheng, H=53364589000en_US
dc.identifier.scopusauthoridKushima, A=6603646605en_US
dc.identifier.scopusauthoridHuang, S=55053745800en_US
dc.identifier.scopusauthoridZhu, T=55206699200en_US
dc.identifier.scopusauthoridMao, SX=55171379100en_US
dc.identifier.scopusauthoridLi, J=55097811400en_US
dc.identifier.scopusauthoridZhang, S=54909873800en_US
dc.identifier.scopusauthoridLu, W=27868087600en_US
dc.identifier.scopusauthoridTour, JM=7005402492en_US
dc.identifier.scopusauthoridHuang, JY=36095632700en_US

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