Interface-induced degradation of amorphous carbon films/stainless steel bipolar plates in proton exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Li, Hao; Guo, Peng; Zhang, Dong; Liu, Linlin; Wang, Zhenyu; Ma, Guanshui; Xin, Yang; Ke, Peiling; Saito, Hidetoshi; Wang, Aiying |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2020 |
| 卷号 | 469 |
| 关键词 | 316L STAINLESS-STEEL ELECTRICAL-RESISTANCE CONTACT RESISTANCE FILMS CORROSION COATINGS COMPOSITE CR DEPOSITION PEMFC |
| DOI | 10.1016/j.jpowsour.2020.228269 |
| 英文摘要 | In the field of proton exchange membrane fuel cells (PEMFCs), amorphous carbon (a-C) films have attracted considerable attention as a surface functional coating for metallic bipolar plates (BPPs), given that they can endow metallic BPPs with both high corrosion resistance and electrical conductivity under harsh PEMFC environments. In this study, to determine the role of a-C/metallic substrate interfaces on the performance of PEMFCs, and clarify the associated degradation mechanism, a series of a-C films are deposited on 316L stainless steel (316Lss) samples at different sputtering powers. The composition, microstructure, interfacial contact resistance (ICR), and corrosion resistance of the a-C films are then systemically investigated, before and after electro-chemical corrosion tests. The results obtained reveal that all the a-C films can greatly improve the performance of 316Lss under simulated PEMFC operational conditions, and the a-C film deposited at 0.9 kW exhibits the lowest corrosion current density ((similar to)7.52. 10(-3) mu A cm(-2)) and minimum ICR values (2.91 and 4.00 m Omega cm(2), before and after the long-time potentiostatic polarization tests, respectively). Furthermore, residual chromium oxides, which possibly result in an increased in ICR values, are observed at the a-C/316Lss interface after corrosion test; thus, an interface-induced a-C film degradation mechanism is proposed. |
| 学科主题 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20548]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Wang, AY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. 2.Guo, P |
| 推荐引用方式 GB/T 7714 | Li, Hao,Guo, Peng,Zhang, Dong,et al. Interface-induced degradation of amorphous carbon films/stainless steel bipolar plates in proton exchange membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2020,469. |
| APA | Li, Hao.,Guo, Peng.,Zhang, Dong.,Liu, Linlin.,Wang, Zhenyu.,...&Wang, Aiying.(2020).Interface-induced degradation of amorphous carbon films/stainless steel bipolar plates in proton exchange membrane fuel cells.JOURNAL OF POWER SOURCES,469. |
| MLA | Li, Hao,et al."Interface-induced degradation of amorphous carbon films/stainless steel bipolar plates in proton exchange membrane fuel cells".JOURNAL OF POWER SOURCES 469(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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