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

被引：1

作者：

Park, Ji Eun ^{[1
,2
]}

Karuppannan, Mohanraju ^{[3
]}

Kwon, Oh Joong ^{[3
]}

Cho, Yong-Hun ^{[4
]}

Sung, Yung-Eun ^{[1
,2
]}

机构：

[1] Inst for Basic Sci Korea, Ctr Nanoparticle Res, Seoul 08826, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 08826, South Korea

[3] Incheon Natl Univ, Dept Energy & Chem Engn, 12-1 Songdo Dong, Incheon 22012, South Korea

[4] Kangwon Natl Univ, Dept Chem Engn, Samcheok 25913, Kangwon Do, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 80卷

关键词：

Unitized regenerative fuel cell; Membrane-electrode assembly; Oxygen electrode; Oxygen reduction reaction; Oxygen evolution reaction; GAS-DIFFUSION LAYER; EVOLUTION REACTION OER; CATALYST LAYER; WATER ELECTROLYZER; ELECTROCATALYST; OPTIMIZATION; IONOMER; CATHODE; IRO2;

D O I：

10.1016/j.jiec.2019.08.029

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In 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 mAcm(-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. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：527 / 534

页数：8

共 32 条

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