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나노입자 연구단
나노입자 연구단
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Electrodeposited mesh-type dimensionally stable anode for oxygen evolution reaction in acidic and alkaline media

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Title
Electrodeposited mesh-type dimensionally stable anode for oxygen evolution reaction in acidic and alkaline media
Author(s)
Ji Eun Park; Hyunjoon Lee; Oh S.-H.; Kang S.Y.; Choi I.; Cho Y.-H.; Yung-Eun Sung
Publication Date
2019-10
Journal
CHEMICAL ENGINEERING SCIENCE, v.206, no., pp.424 - 431
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
© 2019A mesh-type dimensionally stable anode (DSA) consisting of ruthenium and iridium with low catalyst loading was prepared as an oxygen evolution reaction catalyst in acidic and alkaline media. The electrodeposition (ED) conditions, i.e., applied current density and total cycle number, and ED solutions with different precursor ratios of ruthenium to iridium are examined to fabricate various DSAs with a uniform thickness, and the effect of the iridium content on the catalytic activity is investigated. Among various DSA electrodes, the DSA electrode without iridium exhibits the highest activity and stability in the acidic medium owing to the high ratio of ruthenium. Conversely, the DSA electrode obtained using the ED solution with the ratio of 8:2 exhibits the highest performance in the alkaline medium. This is because the DSA electrode without iridium showed low stability, which is attributed to the dissolution of ruthenium oxide in the alkaline medium. In addition, two large-scale DSA electrodes optimized in the acidic and alkaline electrolytes show excellent performance, indicating the feasibility of the application of this electrode in practical electrolysis
URI
https://pr.ibs.re.kr/handle/8788114/6853
ISSN
0009-2509
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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