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Anisotropic Li+ ion conductivity in a large single crystal of a Co(III) coordination complex
- Anisotropic Li+ ion conductivity in a large single crystal of a Co(III) coordination complex
- Kim, S.B.[Kim, Saet Byeol]; Kim, J.Y.[Kim, Jeung Yoon]; Jeong, N.C.[Jeong, Nak Cheon]; Ok, K.M.[Ok, Kang Min]
- DGIST Authors
- Kim, J.Y.[Kim, Jeung Yoon]; Jeong, N.C.[Jeong, Nak Cheon]
- Issue Date
- Inorganic Chemistry Frontiers, 4(1), 79-83
- Article Type
- Large single crystals of a novel lithium cobalt coordination compound, LiCo(NC5H3(CO2)2)2(H2O)2.125 [LiCo(PDC)2] were grown via a hydrothermal reaction in high yield. The electrochemical impedance spectroscopy (EIS) data measured on a large single crystal of LiCo(PDC)2 revealed very interesting anisotropic Li+ ion conductivity. The redox potential for Co3+/Co4+ observed at ca. 200 mV in the cyclic voltammogram was consistent with the electric potential where the ionic conductivity occurred. Detailed structural analysis on a series of stoichiometrically equivalent cobalt coordination compounds, ACo(PDC)2 (A = Na+, K+, and H3O+), indicated that the presence of ion channels as well as a suitable cation size is critical for the anisotropic ionic conductivity. © the Partner Organisations 2017.
- Royal Society of Chemistry
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- Emerging Materials ScienceETC1. Journal Articles
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