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

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Carbothermal shock-induced bifunctional Pt-Co alloy electrocatalysts for high-performance seawater batteries

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dc.contributor.author Ryu, Jong Hun ko
dc.contributor.author Park, Jaehyun ko
dc.contributor.author Park, Jeongwoo ko
dc.contributor.author Mun, Jinhong ko
dc.contributor.author Im, Eunmi ko
dc.contributor.author Lee, Hojeong ko
dc.contributor.author Hong, Sung You ko
dc.contributor.author An, Kwangjin ko
dc.contributor.author Lee, Geunsik ko
dc.contributor.author Kim, Youngsik ko
dc.contributor.author Jo, Pil Sung ko
dc.contributor.author Kang, Seok Ju ko
dc.date.available 2021-12-09T05:14:47Z -
dc.date.created 2021-12-07 ko
dc.date.issued 2022-03 ko
dc.identifier.citation ENERGY STORAGE MATERIALS, v.45, pp.281 - 290 ko
dc.identifier.issn 2405-8297 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/54997 -
dc.description.abstract Seawater batteries consisting of Na anode, Na super-ionic conductor separators, and seawater catholytes have received wide attention because of their theoretical specific capacity of 1160 mAh g−1 and cost-effective Na anode in comparison to rare-earth Li. However, large overpotential during charge and discharge caused by parasitic reactions limits their practical applications. In this work, we employ the bifunctional Pt-Co alloy electrocatalysts produced by carbothermal shock (CTS) method to improve the oxygen evolution and reduction reaction activities of seawater batteries. The CTS induced Pt-Co alloy nanoparticles are well synthesized and dispersed on a carbon current collector within a few s, resulting in improved overpotential and cycle endurance of seawater batteries compared to pristine carbon cathode. In particular, the cell can operate for over 500 h in a seawater catholyte at a fixed capacity of 0.25 mA cm−2 without significant performance degradation. Furthermore, CTS can be readily applied to large-area prismatic seawater battery cells. We observe excellent cyclability in a large-scale seawater battery, suggesting that bifunctional Pt-Co alloy electrocatalysts produced by CTS are viable for use in seawater batteries. ko
dc.language 영어 ko
dc.publisher Elsevier BV ko
dc.title Carbothermal shock-induced bifunctional Pt-Co alloy electrocatalysts for high-performance seawater batteries ko
dc.type ARTICLE ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.ensm.2021.11.036 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S2405829721005535 ko
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