| 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 Author | Liu, Hui Jun(hui_jun_liu@163.com) ; Zeng, Chao Liu(clzeng@imr.ac.cn) |
| 2021-09-13 | |
| Source Publication | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| ISSN | 0360-3199 |
| Volume | 46Issue:63Pages:32206-32214 |
| Abstract | 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. |
| Keyword | Proton exchange membrane fuel cells Metallic bipolar plates Disproportionation beta-Nb2N coating Corrosion |
| Funding Organization | National Natural Science Founda-tion of China ; GuangDong Basic and Applied Basic Research Foundation |
| DOI | 10.1016/j.ijhydene.2021.06.207 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Founda-tion of China[51671204] ; GuangDong Basic and Applied Basic Research Foundation[2020A1515110128] |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| WOS ID | WOS:000691827000010 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166846 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Hui Jun; Zeng, Chao Liu |
| Affiliation | 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 |
| 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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