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dc.contributor.author Chae, Mun-Seok -
dc.contributor.author Hyoung, Joo-Eun -
dc.contributor.author Jang, Min-Chul -
dc.contributor.author Lee, Ho-Chun -
dc.contributor.author Hong, Seung-Tae -
dc.date.available 2017-09-11T09:29:01Z -
dc.date.created 2017-09-11 -
dc.date.issued 2017-09 -
dc.identifier.issn 0378-7753 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/4460 -
dc.description.abstract The magnesium insertion capability of Prussian blue (PB) analogue, potassium nickel hexacyanoferrate K0.86Ni[Fe(CN)6]0.954(H2O)0.766 (KNF-086), is demonstrated as a cathode material for rechargeable magnesium-ion batteries using a conventional organic electrolyte. K1.51Ni[Fe(CN)6]0.954(H2O)0.766 is synthesized first, and potassium ions are electrochemically extracted to prepare the KNF-086 cathode. The electrochemical test cell is composed of KNF-086 as the working electrode, an activated carbon as the counter and reference electrode, and 0.5 M Mg(ClO4)2 in acetonitrile as the electrolyte. The cell shows a reversible magnesium insertion/extraction reaction with a discharge capacity of 48.3 mAh g−1 at a 0.2 C rate, and an average discharge voltage at 2.99 V (vs. Mg/Mg2+) that is the highest among the cathode materials ever reported for magnesium-ion batteries. Elemental analysis and Fourier electron-density map analysis from powder X-ray diffraction data confirm that the magnesium-inserted phase is Mg0.27K0.86Ni[Fe(CN)6]0.954(H2O)0.766 (MKNF-086), and the magnesium ions in MKNF-086 are positioned at the center of the large interstitial cavities of cubic PB. Compared to KNF-086, MKNF-086 exhibits a decreased unit cell parameter (0.8%) and volume (2.4%). These results demonstrate that a PB analogue, potassium nickel hexacyanoferrate, could be utilized as a potential cathode material for conventional organic electrolyte-based magnesium-ion batteries. © 2017 Elsevier B.V. -
dc.language English -
dc.publisher Elsevier B.V. -
dc.title Potassium nickel hexacyanoferrate as a high-voltage cathode material for nonaqueous magnesium-ion batteries -
dc.type Article -
dc.identifier.doi 10.1016/j.jpowsour.2017.07.094 -
dc.identifier.wosid 000411544300033 -
dc.identifier.scopusid 2-s2.0-85026488282 -
dc.identifier.bibliographicCitation Journal of Power Sources, v.363, pp.269 - 276 -
dc.description.isOpenAccess FALSE -
dc.subject.keywordAuthor Prussian blue analogue -
dc.subject.keywordAuthor Potassium nickel hexacyanoferrate -
dc.subject.keywordAuthor Magnesium-ion battery -
dc.subject.keywordAuthor Multivalent-ion battery -
dc.subject.keywordAuthor Crystal structure -
dc.subject.keywordAuthor Nonaqueous electrolyte -
dc.subject.keywordPlus RECHARGEABLE LITHIUM BATTERIES -
dc.subject.keywordPlus PRUSSIAN BLUE ANALOG -
dc.subject.keywordPlus AQUEOUS-ELECTROLYTES -
dc.subject.keywordPlus MG2+ INTERCALATION -
dc.subject.keywordPlus CRYSTAL-STRUCTURE -
dc.subject.keywordPlus KEY CHALLENGES -
dc.subject.keywordPlus FUTURE -
dc.subject.keywordPlus ELECTRODES -
dc.subject.keywordPlus INSERTION -
dc.subject.keywordPlus ANODES -
dc.citation.endPage 276 -
dc.citation.startPage 269 -
dc.citation.title Journal of Power Sources -
dc.citation.volume 363 -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Chemistry; Electrochemistry; Energy & Fuels; Materials Science -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary -
dc.type.docType Article -

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