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Development of high-performance membrane-electrode assembly in unitized regenerative fuel cells

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Title
Development of high-performance membrane-electrode assembly in unitized regenerative fuel cells
Author(s)
Ji Eun Park; Karuppannan M.; Kwon O.J.; Cho Y.-H.; Yung-Eun Sung
Publication Date
2019-12
Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.80, no., pp.527 - 534
Publisher
ELSEVIER SCIENCE INC
Abstract
© 2019 The Korean Society of Industrial and Engineering ChemistryIn this work, we investigated the membrane-electrode assembly (MEA) parameters of an oxygen electrode to develop a high-performance unitized regenerative fuel cell (URFC) that can be operated in fuel cell (FC) and water electrolysis (WE) mode. The MEA parameters including gas diffusion layer, ionomer content, oxygen reduction reaction (ORR) type, oxygen evolution reaction (OER) catalyst, and catalyst loading were optimized by calculating the round-trip efficiency of URFC. The performance in FC mode was largely affected by the MEA parameters compared to that of the WE mode performance. The FC mode performance is crucial for the achievement of high URFC performance. The optimized round-trip efficiency was 49% at 500 mA cm−2, which is comparable or superior to that reported in literature. This result can be attributed to the highly efficient MEA structure suitable for bifunctional catalysts to participate in both ORR and OER
URI
https://pr.ibs.re.kr/handle/8788114/6703
ISSN
1226-086X
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Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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