Three-Dimensional Nanoporous Fe2O3/Fe3C-Graphene Heterogeneous Thin Films for Lithium-Ion Batteries

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dc.citation.firstpage3939en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitleACS Nanoen_US
dc.citation.lastpage3946en_US
dc.citation.volumeNumber8en_US
dc.contributor.authorYang, Yangen_US
dc.contributor.authorFan, Xiujunen_US
dc.contributor.authorCasillas, Gilbertoen_US
dc.contributor.authorPeng, Zhiweien_US
dc.contributor.authorRuan, Gedengen_US
dc.contributor.authorWang, Gunuken_US
dc.contributor.authorYacaman, Miguel Joseen_US
dc.contributor.authorTour, James M.en_US
dc.contributor.orgSmalley Institute for Nanoscale Science and Technologyen_US
dc.date.accessioned2016-01-29T16:52:03Zen_US
dc.date.available2016-01-29T16:52:03Zen_US
dc.date.issued2014en_US
dc.description.abstractThree-dimensional self-organized nanoporous thin films integrated into a heterogeneous Fe2O3/Fe3C-graphene structure were fabricated using chemical vapor deposition. Few-layer graphene coated on the nanoporous thin film was used as a conductive passivation layer, and Fe3C was introduced to improve capacity retention and stability of the nanoporous layer. A possible interfacial lithium storage effect was anticipated to provide additional charge storage in the electrode. These nanoporous layers, when used as an anode in lithium-ion batteries, deliver greatly enhanced cyclability and rate capacity compared with pristine Fe2O3: a specific capacity of 356 μAh cm–2 μm–1 (3560 mAh cm–3 or ∼1118 mAh g–1) obtained at a discharge current density of 50 μA cm–2 (∼0.17 C) with 88% retention after 100 cycles and 165 μAh cm–2 μm–1(1650 mAh cm–3 or ∼518 mAh g–1) obtained at a discharge current density of 1000 μA cm–2(∼6.6 C) for 1000 cycles were achieved. Meanwhile an energy density of 294 μWh cm–2 μm–1(2.94 Wh cm–3 or ∼924 Wh kg–1) and power density of 584 μW cm–2 μm–1 (5.84 W cm–3 or ∼1834 W kg–1) were also obtained, which may make these thin film anodes promising as a power supply for micro- or even nanosized portable electronic devices.en_US
dc.identifier.citationYang, Yang, Fan, Xiujun, Casillas, Gilberto, et al.. "Three-Dimensional Nanoporous Fe2O3/Fe3C-Graphene Heterogeneous Thin Films for Lithium-Ion Batteries." <i>ACS Nano,</i> 8, no. 4 (2014) American Chemical Society: 3939-3946. http://dx.doi.org/10.1021/nn500865d.en_US
dc.identifier.doihttp://dx.doi.org/10.1021/nn500865den_US
dc.identifier.urihttps://hdl.handle.net/1911/88251en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an open access article published under an ACS AuthorChoiceﾠLicense, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en_US
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen_US
dc.subject.keywordheterogeneous structureen_US
dc.subject.keywordnanoporousen_US
dc.subject.keywordlithium-ion batteryen_US
dc.subject.keywordthin filmen_US
dc.subject.keywordanodeen_US
dc.titleThree-Dimensional Nanoporous Fe2O3/Fe3C-Graphene Heterogeneous Thin Films for Lithium-Ion Batteriesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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