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A nanocrystalline zirconium carbide coating as a functional corrosion-resistant barrier for polymer electrolyte membrane fuel cell application
Xu J; Li ZY(李正阳); Xu S; Munroe P; Xie ZH; Xu, J (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.
Source PublicationJOURNAL OF POWER SOURCES
2015-11-30
Volume297Pages:359-369
ISSN0378-7753
AbstractA ZrC nanocrystalline coating is engineered onto a Ti-6Al-4V substrate using a double cathode glow discharge technique in order to improve the corrosion resistance and long-term stability of this alloy. The new coating exhibits an extremely dense, homogeneous microstructure composed of equiaxed grains with an average grain size of similar to 12 nm and is well adhered on the surface of the substrate. The corrosion behaviour of the coating is systematically investigated using various electrochemical methods, including potentiodynamic, potentiostatic polarizations and electrochemical impedance spectroscopy (EIS), in a simulated polymer electrolyte membrane fuel cell (PEMFC) operating circumstances under different temperatures. The results show that with rising temperature, the corrosion potential (E-corr) decreases and the corrosion current density (i(corr)) of the ZrC coated specimen increases, indicating that the corrosion resistance decreased with increasing temperature. However, at a given temperature, the ZrC-coated Ti-6Al-4V alloy has a higher E-corr and lower icorr as compared to the bare substrate. The results of EIS measurements show that the values of the resistance for the ZrC coated Ti-6Al-4V alloy are three orders of magnitude larger than those of Ti-6Al-4V in the simulated PEMFC environment. (C) 2015 Elsevier B.V. All rights reserved.
KeywordPolymer Electrolyte Membrane Fuel Cell (Pemfc) Bipolar Plate Titanium Alloy Zrc Coating Corrosion Resistance
DOI10.1016/j.jpowsour.2015.08.024
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000361772600044
WOS KeywordBIPOLAR PLATE MATERIAL ; DUPLEX STAINLESS-STEEL ; THIN-FILMS ; ELECTROCHEMICAL-BEHAVIOR ; PREFERRED ORIENTATION ; CHLORIDE SOLUTION ; PITTING BEHAVIOR ; TEMPERATURE ; PEMFC ; ALLOY
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS SubjectElectrochemistry ; Energy & Fuels
Funding OrganizationThe authors acknowledge the financial support of the National Natural Science Foundation of China under Grant No. 51374130, the Aeronautics Science Foundation of China under Grant No. 2013ZE52058 and the Australian Research Council Discovery Project under Grant No. DP150102417.
DepartmentMAMYAG激光毛化技术
Classification一类
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58414
Collection先进制造工艺力学实验室
Corresponding AuthorXu, J (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Xu J,Li ZY,Xu S,et al. A nanocrystalline zirconium carbide coating as a functional corrosion-resistant barrier for polymer electrolyte membrane fuel cell application[J]. JOURNAL OF POWER SOURCES,2015,297:359-369.
APA Xu J,李正阳,Xu S,Munroe P,Xie ZH,&Xu, J .(2015).A nanocrystalline zirconium carbide coating as a functional corrosion-resistant barrier for polymer electrolyte membrane fuel cell application.JOURNAL OF POWER SOURCES,297,359-369.
MLA Xu J,et al."A nanocrystalline zirconium carbide coating as a functional corrosion-resistant barrier for polymer electrolyte membrane fuel cell application".JOURNAL OF POWER SOURCES 297(2015):359-369.
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