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


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

DC Field Value Language Ryu, Jong Hun ko Park, Jaehyun ko Park, Jeongwoo ko Mun, Jinhong ko Im, Eunmi ko Lee, Hojeong ko Hong, Sung You ko An, Kwangjin ko Lee, Geunsik ko Kim, Youngsik ko Jo, Pil Sung ko Kang, Seok Ju ko 2021-12-09T05:14:47Z - 2021-12-07 ko 2022-03 ko
dc.identifier.citation ENERGY STORAGE MATERIALS, v.45, pp.281 - 290 ko
dc.identifier.issn 2405-8297 ko
dc.identifier.uri -
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 ko
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