Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment

doi:10.1016/j.ijhydene.2021.06.207

IMR OpenIR

	Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment
	Yang, Ling Xu 1; Liu, Rui Jia 2,3; Wang, Ying 2,3; Liu, Hui Jun 1; Zeng, Chao Liu 1; Fu, Chao 1
通讯作者	Liu, Hui Jun(hui_jun_liu@163.com) ; Zeng, Chao Liu(clzeng@imr.ac.cn)
	2021-09-13
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN	0360-3199
卷号	46 期号:63 页码:32206-32214
摘要	The corrosion of metallic bipolar plates in the proton exchange membrane fuel cells (PEMFCs) anode environment would degrade the performance and shorten the lifespan of the fuel cell. Hence, it is essential to develop a conductive coating with good corrosion resistance. Herein we demonstrate a dense, defect-free, and well-adhered nanocrystalline beta-Nb2N coating prepared on 430 ferritic stainless steel (430 FSS) via disproportionation of Nb(IV) species in molten salts. The corrosion mechanism of bare and beta-Nb2N coated 430 FSS in the simulated PEMFC anode environment is also studied by electrochemical techniques including potentiodynamic polarization, potentiostatic polarization, and electrochemical impedance spectroscopy. Results show that beta-Nb2N coating can significantly improve the corrosion resistance of the steel alloy with acceptable contact resistance. In addition, no obvious degradation is observed for the beta-Nb2N coating after potentiostatic polarization measurement for 500 h. This work offers a promising strategy to develop the corrosion protective coating on metallic bipolar plates for PEMFCs. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词	Proton exchange membrane fuel cells Metallic bipolar plates Disproportionation beta-Nb2N coating Corrosion
资助者	National Natural Science Founda-tion of China ; GuangDong Basic and Applied Basic Research Foundation
DOI	10.1016/j.ijhydene.2021.06.207
收录类别	SCI
语种	英语
资助项目	National Natural Science Founda-tion of China[51671204] ; GuangDong Basic and Applied Basic Research Foundation[2020A1515110128]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS记录号	WOS:000691827000010
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/166846
专题	中国科学院金属研究所
通讯作者	Liu, Hui Jun; Zeng, Chao Liu
作者单位	1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, Ling Xu,Liu, Rui Jia,Wang, Ying,et al. Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(63):32206-32214.
APA	Yang, Ling Xu,Liu, Rui Jia,Wang, Ying,Liu, Hui Jun,Zeng, Chao Liu,&Fu, Chao.(2021).Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(63),32206-32214.
MLA	Yang, Ling Xu,et al."Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.63(2021):32206-32214.