Fe3O4 Nanoparticles Confined in Mesocellular Carbon Foam for High Performance Anode Materials for Lithium-Ion Batteries

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dc.contributor.authorKang, Eunaeko
dc.contributor.authorJung, Yoon Seokko
dc.contributor.authorCavanagh, Andrew S.ko
dc.contributor.authorKim, Gi-Heonko
dc.contributor.authorGeorge, Steven M.ko
dc.contributor.authorDillon, Anne C.ko
dc.contributor.authorKim, Jin Konko
dc.contributor.authorLee, Jinwooko
dc.date.accessioned2018-08-20T08:24:48Z-
dc.date.available2018-08-20T08:24:48Z-
dc.date.created2018-08-08-
dc.date.created2018-08-08-
dc.date.issued2011-07-
dc.identifier.citationADVANCED FUNCTIONAL MATERIALS, v.21, no.13, pp.2430 - 2438-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10203/245095-
dc.description.abstractFe3O4 nanocrystals confined in mesocellular carbon foam (MSU-F-C) are synthesized by a "host-guest " approach and tested as an anode material for lithium-ion batteries (LIBs). Briefly, an iron oxide precursor, Fe(NO3)(3)center dot 9H(2)O, is impregnated in MSU-F-C having uniform cellular pores similar to 30 nm in diameter, followed by heat-treatment at 400 degrees C for 4 h under Ar. Magnetite Fe3O4 nanocrystals with sizes between 13-27 nm are then successfully fabricated inside the pores of the MSU-F-C, as confirmed by transmission electron microscopy (TEM), dark-field scanning transmission electron microscopy (STEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and nitrogen sorption isotherms. The presence of the carbon most likely allows for reduction of some of the Fe3+ ions to Fe2+ ions via a carbothermoreduction process. A Fe3O4/MSU-F-C nanocomposite with 45 wt% Fe3O4 exhibited a first charge capacity of 1007 mA h g(-1) (Li+ extraction) at 0.1 Ag-1 (similar to 0.1 C rate) with 111% capacity retention at the 150(th) cycle, and retained 37% capacity at 7 Ag-1 (similar to 7 C rate). Because the three dimensionally interconnected open pores are larger than the average nanosized Fe3O4 particles, the large volume expansion of Fe3O4 upon Li-insertion is easily accommodated inside the pores, resulting in excellent electrochemical performance as a LIB anode. Furthermore, when an ultrathin Al2O3 layer (< 4 angstrom) was deposited on the composite anode using atomic layer deposition (ALD), the durability, rate capability and undesirable side reactions are significantly improved.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.subjectORDERED MESOPOROUS CARBON-
dc.subjectATOMIC LAYER DEPOSITION-
dc.subjectBINARY REACTION SEQUENCE-
dc.subjectSECONDARY BATTERIES-
dc.subjectNEGATIVE-ELECTRODE-
dc.subjectGAS SENSOR-
dc.subjectLI-
dc.subjectALPHA-FE2O3-
dc.subjectSHELL-
dc.subjectCHEMISTRY-
dc.titleFe3O4 Nanoparticles Confined in Mesocellular Carbon Foam for High Performance Anode Materials for Lithium-Ion Batteries-
dc.typeArticle-
dc.identifier.wosid000292707700004-
dc.identifier.scopusid2-s2.0-79959990745-
dc.type.rimsART-
dc.citation.volume21-
dc.citation.issue13-
dc.citation.beginningpage2430-
dc.citation.endingpage2438-
dc.citation.publicationnameADVANCED FUNCTIONAL MATERIALS-
dc.identifier.doi10.1002/adfm.201002576-
dc.contributor.localauthorLee, Jinwoo-
dc.contributor.nonIdAuthorKang, Eunae-
dc.contributor.nonIdAuthorJung, Yoon Seok-
dc.contributor.nonIdAuthorCavanagh, Andrew S.-
dc.contributor.nonIdAuthorKim, Gi-Heon-
dc.contributor.nonIdAuthorGeorge, Steven M.-
dc.contributor.nonIdAuthorDillon, Anne C.-
dc.contributor.nonIdAuthorKim, Jin Kon-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusORDERED MESOPOROUS CARBON-
dc.subject.keywordPlusATOMIC LAYER DEPOSITION-
dc.subject.keywordPlusBINARY REACTION SEQUENCE-
dc.subject.keywordPlusSECONDARY BATTERIES-
dc.subject.keywordPlusNEGATIVE-ELECTRODE-
dc.subject.keywordPlusGAS SENSOR-
dc.subject.keywordPlusLI-
dc.subject.keywordPlusALPHA-FE2O3-
dc.subject.keywordPlusSHELL-
dc.subject.keywordPlusCHEMISTRY-
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