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Hong, Sung You
Synthetic Organic Chemistry Laboratory
Research Interests
  • Synthetic organic chemistry, transition metals, oxidation state

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Fullerene-like Re-Doped MoS2 Nanoparticles as an Intercalation Host with Fast Kinetics for Sodium Ion Batteries

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dc.contributor.author Woo, Seung Hee ko
dc.contributor.author Yadgarov, Lena ko
dc.contributor.author Rosentsveig, Rita ko
dc.contributor.author Park, Yuwon ko
dc.contributor.author Song, Daesun ko
dc.contributor.author Tenne, Reshef ko
dc.contributor.author Hong, Sung You ko
dc.date.available 2015-04-02T04:09:35Z -
dc.date.created 2015-04-01 ko
dc.date.issued 2015-05 ko
dc.identifier.citation ISRAEL JOURNAL OF CHEMISTRY, v.55, no.5, pp.599 - 603 ko
dc.identifier.issn 0021-2148 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/11129 -
dc.description.abstract Sodium ion batteries (SIBs) are considered as a promising alternative to threaten the reign of lithium ion batteries (LIBs) among various next-generation rechargeable energy storage systems, including magnesium ion, metal-air, and metal-sulfur batteries. Since both sodium and lithium are located in Group 1 of the periodic table, they share similar (electro)chemical properties with regard to ionization pattern, electronegativity, and electronic configuration; thus the vast number of compounds developed from LIBs can provide guidance to design electrode materials for SIBs. However, the larger ionic radius of the sodium cation and unique (de)sodiation processes may also lead to uncertainties in terms of thermodynamic or kinetic properties. Herein, we present the first construction of SIBs based on inorganic fullerene-like (IF) MoS2 nanoparticles. Closed-shell-type structures, represented by C60 fullerene, have largely been neglected for studies of alkali-metal hosting materials due to their inaccessibility for intercalating ions into the inner spaces. However, IF-MoS2, with faceted surfaces, can diffuse sodium ions through the defective channels, thereby allowing reversible sodium ion intercalation/deintercalation. Interestingly, Re-doped MoS2 showed good electrochemical performances with fast kinetics (ca. 74mAhg-1 at 20C). N-type doping caused by Re substitution of Mo in IF-MoS2 revealed enhanced electrical conductivity and an increased number of diffusion defect sites. Thus, chemical modification of fullerene-like structures through doping is proven to be a promising synthetic strategy to prepare improved electrodes. ko
dc.description.statementofresponsibility open -
dc.language 영어 ko
dc.publisher WILEY-V C H VERLAG GMBH ko
dc.title Fullerene-like Re-Doped MoS2 Nanoparticles as an Intercalation Host with Fast Kinetics for Sodium Ion Batteries ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85027917136 ko
dc.identifier.wosid 000354415600011 ko
dc.type.rims ART ko
dc.description.scopustc 0 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1002/ijch.201400124 ko
dc.identifier.url http://onlinelibrary.wiley.com/doi/10.1002/ijch.201400124/abstract ko
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