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Corrosion and interfacial contact resistance of nanocrystalline beta-Nb2N coating on 430 FSS bipolar plates in the simulated PEMFC anode environment
Yang, Ling Xu1; Liu, Rui Jia2,3; Wang, Ying2,3; Liu, Hui Jun1; Zeng, Chao Liu1; Fu, Chao1
Corresponding AuthorLiu, Hui Jun(hui_jun_liu@163.com) ; Zeng, Chao Liu(clzeng@imr.ac.cn)
2021-09-13
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume46Issue:63Pages:32206-32214
AbstractThe 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.
KeywordProton exchange membrane fuel cells Metallic bipolar plates Disproportionation beta-Nb2N coating Corrosion
Funding OrganizationNational Natural Science Founda-tion of China ; GuangDong Basic and Applied Basic Research Foundation
DOI10.1016/j.ijhydene.2021.06.207
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Founda-tion of China[51671204] ; GuangDong Basic and Applied Basic Research Foundation[2020A1515110128]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000691827000010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166846
Collection中国科学院金属研究所
Corresponding AuthorLiu, Hui Jun; Zeng, Chao Liu
Affiliation1.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
Recommended Citation
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.
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