Superior cycling and rate performances of rattle-type CoMoO4 microspheres prepared by one-pot spray pyrolysis

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dc.contributor.authorKo, You Nako
dc.contributor.authorKang, Yun Chanko
dc.contributor.authorPark, Seung Binko
dc.date.accessioned2014-09-01T06:58:55Z-
dc.date.available2014-09-01T06:58:55Z-
dc.date.created2014-06-09-
dc.date.created2014-06-09-
dc.date.issued2014-
dc.identifier.citationRSC ADVANCES, v.4, no.34, pp.17873 - 17878-
dc.identifier.issn2046-2069-
dc.identifier.urihttp://hdl.handle.net/10203/189165-
dc.description.abstractRattle-type CoMoO4 and CoMoO4-carbon composite microspheres were prepared by one-pot spray pyrolysis at temperatures of 850 and 700 degrees C, respectively. The XRD patterns of both the samples corresponded to the pure crystal structure of b-CoMoO4. The CoMoO4-carbon composite microspheres exhibited broad diffraction peaks with relatively lower intensities, when compared to those of rattle-type CoMoO4 microspheres. This indicates the poor crystallinity of the carbon composite powders, despite the similar preparation conditions. In the initial cycles, the rattle-type CoMoO4 microspheres and CoMoO4-carbon composite microspheres delivered discharge capacities of 1221 and 1245 mA h g(-1), respectively at a current density of 500 mA g(-1), and charge capacities of 1019 and 896 mA h g (1), respectively, corresponding to Coulombic efficiencies of 83 and 72%, respectively. After 150 cycles, the discharge capacities of the rattle-type and carbon composite microspheres were 1065 and 833 mA h g (1), respectively, and the corresponding capacity retentions measured after the first cycles were 100 and 90%, respectively. The morphology of the rattle-type CoMoO4 microsphere was maintained, despite repeated Li+ insertion and extraction processes, even at a high current density of 500 mA g (-1).-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.subjectLITHIUM-ION BATTERIES-
dc.subjectCAPACITY ANODE MATERIAL-
dc.subjectELECTROCHEMICAL PERFORMANCE-
dc.subjectREVERSIBLE CAPACITY-
dc.subjectELECTRODE MATERIALS-
dc.subjectFACILE SYNTHESIS-
dc.subjectMETAL-OXIDES-
dc.subjectGRAPHENE-
dc.subjectCARBON-
dc.subjectSUPERCAPACITORS-
dc.titleSuperior cycling and rate performances of rattle-type CoMoO4 microspheres prepared by one-pot spray pyrolysis-
dc.typeArticle-
dc.identifier.wosid000335227700058-
dc.identifier.scopusid2-s2.0-84898772273-
dc.type.rimsART-
dc.citation.volume4-
dc.citation.issue34-
dc.citation.beginningpage17873-
dc.citation.endingpage17878-
dc.citation.publicationnameRSC ADVANCES-
dc.identifier.doi10.1039/c4ra01278j-
dc.contributor.localauthorPark, Seung Bin-
dc.contributor.nonIdAuthorKang, Yun Chan-
dc.type.journalArticleArticle-
dc.subject.keywordPlusLITHIUM-ION BATTERIES-
dc.subject.keywordPlusCAPACITY ANODE MATERIAL-
dc.subject.keywordPlusELECTROCHEMICAL PERFORMANCE-
dc.subject.keywordPlusREVERSIBLE CAPACITY-
dc.subject.keywordPlusELECTRODE MATERIALS-
dc.subject.keywordPlusFACILE SYNTHESIS-
dc.subject.keywordPlusMETAL-OXIDES-
dc.subject.keywordPlusGRAPHENE-
dc.subject.keywordPlusCARBON-
dc.subject.keywordPlusSUPERCAPACITORS-
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