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Electrochemical corrosion characteristics of conducting polypyrrole/polyaniline coatings in simulated environments of a proton exchange membrane fuel cell
Ren, Y. J.; Chen, J.; Zeng, C. L.; Li, C.; He, J. J.; Ren, YJ (reprint author), Changsha Univ Sci & Technol, Dept Energy & Power Engn, Changsha 410076, Hunan, Peoples R China.
2016-06-01
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume41Issue:20Pages:8542-8549
AbstractA bilayer conducting polymer coating consisting of an inner layer of polypyrrole (Ppy) with large dodecylsulfate ionic groups and an external polyaniline (Pani) layer with small SO42- groups was electrodeposited on type 304 stainless steel bipolar plates of a proton-exchange membrane fuel cell (PEMFC). The corrosion performance of conducting Ppy/Pani bilayer coatings on 304SS in simulated cathode and anode environments (0.1 M H2SO4 solution bubbled with air or H-2 at 80 degrees C) of a PEMFC was investigated by electrochemical impedance spectroscopy, polarization and open circuit potential measurements. The experimental results showed that the Ppy/Pani bilayer increased the free corrosion potential of the steel by about 310 mV (SCE) and 270 mV (SCE) in simulated cathodic and anodic environments of the PEMFC, respectively. Long-term exposure studies showed that the bilayer was highly stable and inhibited the corrosion of the steel effectively in simulated cathodic and anodic environments, which was attributed to its "self-healing" effect. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
description.department[ren, y. j. ; chen, j. ; li, c. ; he, j. j.] changsha univ sci & technol, dept energy & power engn, changsha 410076, hunan, peoples r china ; [zeng, c. l.] chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china
KeywordProton Exchange Membrane Fuel Cell Polypyrrole/polyaniline Bilayer Coatings Stainless Steel Bipolar Plates Corrosion
Subject AreaChemistry ; Electrochemistry ; Energy & Fuels
Funding OrganizationNational Natural Science Foundation of China [51301026]; Natural Science Foundation of Hunan Province [14JJ6019]; Educational Commission of Hunan Province [13B128]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75845
Collection中国科学院金属研究所
Corresponding AuthorRen, YJ (reprint author), Changsha Univ Sci & Technol, Dept Energy & Power Engn, Changsha 410076, Hunan, Peoples R China.
Recommended Citation
GB/T 7714
Ren, Y. J.,Chen, J.,Zeng, C. L.,et al. Electrochemical corrosion characteristics of conducting polypyrrole/polyaniline coatings in simulated environments of a proton exchange membrane fuel cell[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2016,41(20):8542-8549.
APA Ren, Y. J.,Chen, J.,Zeng, C. L.,Li, C.,He, J. J.,&Ren, YJ .(2016).Electrochemical corrosion characteristics of conducting polypyrrole/polyaniline coatings in simulated environments of a proton exchange membrane fuel cell.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,41(20),8542-8549.
MLA Ren, Y. J.,et al."Electrochemical corrosion characteristics of conducting polypyrrole/polyaniline coatings in simulated environments of a proton exchange membrane fuel cell".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41.20(2016):8542-8549.
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