An effective oxygen electrode based on Ir0.6Sn0.4O2 for PEM water electrolyzers

能源化学(英文版) ›› 2019, Vol. 39 ›› Issue (12): 23-28.

An effective oxygen electrode based on Ir_0.6Sn_0.4O₂ for PEM water electrolyzers

Guang Jiang^a,b, Hongmei Yu^a, Jinkai Hao^a, Jun Chi^a,b, Zhixuan Fan^a,b, Dewei Yao^a,b, Bowen Qin^a,b, Zhigang Shao^a

a Fuel Cell System and Engineering Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b University of Chinese Academy of Sciences, Beijing 100039, China

收稿日期:2018-12-12 修回日期:2018-12-28 出版日期:2019-12-15 发布日期:2020-12-18
通讯作者: Hongmei Yu, hmyu@dicp.ac.cn
基金资助:
This work was financially supported by the National Natural Science Foundation of China (U1664259) and State Grid Corporation of China (No. SGTYHT/15-JS-191, PEMWE MEA Preparation and degradation mechanism).

An effective oxygen electrode based on Ir_0.6Sn_0.4O₂ for PEM water electrolyzers

Guang Jiang^a,b, Hongmei Yu^a, Jinkai Hao^a, Jun Chi^a,b, Zhixuan Fan^a,b, Dewei Yao^a,b, Bowen Qin^a,b, Zhigang Shao^a

a Fuel Cell System and Engineering Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b University of Chinese Academy of Sciences, Beijing 100039, China

Received:2018-12-12 Revised:2018-12-28 Online:2019-12-15 Published:2020-12-18
Contact: Hongmei Yu, hmyu@dicp.ac.cn
Supported by:
This work was financially supported by the National Natural Science Foundation of China (U1664259) and State Grid Corporation of China (No. SGTYHT/15-JS-191, PEMWE MEA Preparation and degradation mechanism).

摘要/Abstract

摘要： An effective oxygen evolution electrode with Ir_0.6Sn_0.4O₂ was designed for proton exchange membrane (PEM) water electrolyzers. The anode catalyst layer exhibits a jagged structure with smaller particles and pores, which provide more active sites and mass transportation channels. The prepared IrSn electrode showed a cell voltage of 1.96 V at 2.0 A cm^-2 with Ir loading as low as 0.294 mg cm^-2. Furthermore, IrSn electrode with different anode catalyst loadings was investigated. The IrSn electrode indicates higher mass current and more stable cell voltage than the commercial Ir Black electrode at low loading.

关键词: PEM water electrolyzer, OER electrode, Low Ir loading

Abstract: An effective oxygen evolution electrode with Ir_0.6Sn_0.4O₂ was designed for proton exchange membrane (PEM) water electrolyzers. The anode catalyst layer exhibits a jagged structure with smaller particles and pores, which provide more active sites and mass transportation channels. The prepared IrSn electrode showed a cell voltage of 1.96 V at 2.0 A cm^-2 with Ir loading as low as 0.294 mg cm^-2. Furthermore, IrSn electrode with different anode catalyst loadings was investigated. The IrSn electrode indicates higher mass current and more stable cell voltage than the commercial Ir Black electrode at low loading.

Key words: PEM water electrolyzer, OER electrode, Low Ir loading

Guang Jiang, Hongmei Yu, Jinkai Hao, Jun Chi, Zhixuan Fan, Dewei Yao, Bowen Qin, Zhigang Shao. An effective oxygen electrode based on Ir_0.6Sn_0.4O₂ for PEM water electrolyzers[J]. 能源化学(英文版), 2019, 39(12): 23-28.

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An effective oxygen electrode based on Ir_0.6Sn_0.4O₂ for PEM water electrolyzers

An effective oxygen electrode based on Ir_0.6Sn_0.4O₂ for PEM water electrolyzers

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