Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130254
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dc.contributor.authorLi, D.-
dc.contributor.authorHuang, Y.-
dc.contributor.authorSharma, N.-
dc.contributor.authorChen, Z.-
dc.contributor.authorJia, D.-
dc.contributor.authorGuo, Z.-
dc.date.issued2012-
dc.identifier.citationPhysical Chemistry Chemical Physics, 2012; 14(10):3634-3639-
dc.identifier.issn1463-9076-
dc.identifier.issn1463-9084-
dc.identifier.urihttp://hdl.handle.net/2440/130254-
dc.description.abstractA composite cathode material for lithium ion battery applications, Mo-doped LiFePO(4)/C, is obtained through a facile and fast microwave-assisted synthesis method. Rietveld analysis of LiFePO(4)-based structural models using synchrotron X-ray diffraction data shows that Mo-ions substitute onto the Fe sites and displace Fe-ions to the Li sites. Supervalent Mo(6+) doping can act to introduce Li ion vacancies due to the charge compensation effect and therefore facilitate lithium ion diffusion during charging/discharging. Transmission electron microscope images demonstrate that the pure and doped LiFePO(4) nanoparticles were uniformly covered by an approximately 5 nm thin layer of graphitic carbon. Amorphous carbon on the graphitic carbon-coated pure and doped LiFePO(4) particles forms a three-dimensional (3D) conductive carbon network, effectively improving the conductivity of these materials. The combined effects of Mo-doping and the 3D carbon network dramatically enhance the electrochemical performance of these LiFePO(4) cathodes. In particular, Mo-doped LiFePO(4)/C delivers a reversible capacity of 162 mA h g(-1) at a current of 0.5 C and shows enhanced capacity retention compared to that of undoped LiFePO(4)/C. Moreover, the electrode exhibits excellent rate capability, with an associated high discharge capacity and good electrochemical reversibility.-
dc.description.statementofresponsibilityDan Li, Yudai Huang, Neeraj Sharma, Zhixin Chen, Dianzeng Jia and Zaiping Guo-
dc.language.isoen-
dc.publisherRoyal Society of Chemistry-
dc.rightsThis journal is © the Owner Societies 2012-
dc.subjectPhosphates-
dc.subjectCarbon-
dc.subjectLithium-
dc.subjectIron-
dc.subjectMolybdenum-
dc.subjectElectrochemistry-
dc.subjectMicrowaves-
dc.subjectElectric Power Supplies-
dc.titleEnhanced electrochemical properties of LiFePO₄ by Mo-substitution and graphitic carbon-coating via a facile and fast microwave-assisted solid-state reaction-
dc.title.alternativeEnhanced electrochemical properties of LiFePO(4) by Mo-substitution and graphitic carbon-coating via a facile and fast microwave-assisted solid-state reaction-
dc.typeJournal article-
dc.identifier.doi10.1039/c2cp24062a-
pubs.publication-statusPublished-
dc.identifier.orcidGuo, Z. [0000-0003-3464-5301]-
Appears in Collections:Aurora harvest 4
Chemistry and Physics publications

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