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dc.contributor.authorZhang, Weizh_CN
dc.contributor.authorDuchesne, Paul N.zh_CN
dc.contributor.authorGong, Zheng-Liangzh_CN
dc.contributor.authorWu, Shun-Qingzh_CN
dc.contributor.authorMa, Linzh_CN
dc.contributor.authorJiang, Zhengzh_CN
dc.contributor.authorZhang, Shuozh_CN
dc.contributor.authorZhang, Pengzh_CN
dc.contributor.authorMi, Jin-Xiaozh_CN
dc.contributor.authorYang, Yongzh_CN
dc.contributor.author龚正良zh_CN
dc.contributor.author吴顺情zh_CN
dc.contributor.author宓锦校zh_CN
dc.contributor.author杨勇zh_CN
dc.date.accessioned2015-07-22T07:07:43Z
dc.date.available2015-07-22T07:07:43Z
dc.date.issued2013-Jun 6zh_CN
dc.identifier.citationJOURNAL OF PHYSICAL CHEMISTRY C, 2013,117(22):11498-11505zh_CN
dc.identifier.otherWOS:000320214800006zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/90268
dc.descriptionNational Basic Research Program of China (973 program) [2011CB935903]; National Natural Science Foundation of China [21233004, 21021002, 20873115]zh_CN
dc.description.abstractThe reactions and structural evolution of FeF3 during cell cycling are investigated in an in situ cell by using Fe K-edge X-ray absorption fine-structure (XAFS) spectroscopy. The results of X-ray absorption near-edge structure spectroscopic analysis demonstrate that there are three stages in the reaction of FeF3 with Li: (1) a two-phase intercalation reaction in the range of x = 0 to 0.46 Li, (2) a single-phase intercalation reaction in the range of x = 0.46 to 0.92 Li, and (3) a conversion reaction in the range of x = 0.92 to 2.78 Li. The coordination numbers (CNs) and bond lengths of the Fe-F bonds or Fe-Fe bonds for the lithiated FeF3 are obtained by performing XAFS fitting. The splitting trends of the Fe-F bond lengths and the Fe-F CNs in the range of x = 0 to 0.92 Li support the proposal that R-3c-structured FeF3 is transformed into R3c-structured Li0.92FeF3 after the intercalation of 0.92 equiv. of Li, and that the intermediate Li0.46FeF3 may be R3-structured. The small Fe-Fe CN of Li2.78FeF3 indicates that the average diameter of the Fe crystallites formed during discharge is <1 nm.zh_CN
dc.language.isoen_USzh_CN
dc.publisherAMER CHEMICAL SOCzh_CN
dc.source.urihttp://dx.doi.org/10.1021/jp401200uzh_CN
dc.subjectABSORPTION FINE-STRUCTUREzh_CN
dc.subjectX-RAY-DIFFRACTIONzh_CN
dc.subjectION BATTERIESzh_CN
dc.subjectELECTRODE MATERIALSzh_CN
dc.subjectNANOCOMPOSITESzh_CN
dc.subjectINTERCALATIONzh_CN
dc.subjectSPECTROSCOPYzh_CN
dc.subjectPERFORMANCEzh_CN
dc.subjectLITHIATIONzh_CN
dc.subjectSTORAGEzh_CN
dc.titleIn Situ Electrochemical XAFS Studies on an Iron Fluoride High-Capacity Cathode Material for Rechargeable Lithium Batterieszh_CN
dc.typeArticlezh_CN


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