Intergranular passivation of the TiC coating for enhancing corrosion resistance and surface conductivity in stainless-steel bipolar plates
文献类型：期刊论文
| 作者 | Li, Jingling1,2,3,4; Xu, Zeling1,2,3,4; Li, Yujian3,4 ; Ma, Xinzhou1,2; Mo, Jiamei3,4; Weng, Lingyan1,2; Liu, Cuiyin1,2
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| 刊名 | JOURNAL OF MATERIALS SCIENCE
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| 出版日期 | 2021-01-03 |
| 页码 | 15 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-020-05733-w |
| 通讯作者 | Li, Jingling(lijl@fosu.edu.cn) ; Liu, Cuiyin(liu_cuiyin@163.com) |
| 英文摘要 | Stainless-steel bipolar plates (BPPs) are of great significance in low-cost, easily processable, lightweight proton exchange membrane fuel cells (PEMFCs) despite the challenge presented by corrosion in protective coatings. Localized corrosion along the grain boundaries in a crystal film is common, but few preventive measures have been developed so far. Thus, we propose a novel strategy using a tantalum (Ta) and carbon (C) co-modification to improve the chemical stability of titanium carbide (TiC)-based coatings (Cr/Ta/TiC/C). During the film growth, the subjacent Ta atoms were thermally diffused throughout the columnar structure of TiC and reacted with the C layer. The reaction product, i.e., TaC, acted as a chemical passivator to the grain boundary. Combined with the C capping layer, these functional layers synergistically suppressed any localized corrosion. Therefore, corrosion current densities within the United States Department of Energy's technical recommendations were achieved in both potentiostatic and potentiodynamic polarization. Meanwhile, by controlling the Ta metal dispersion, the interfacial contact resistance between the multilayer structure and the carbon paper can be reduced to 7.1 m omega center dot cm(-2) at a compaction force of 140 N center dot cm(-2). The substantial improvement in the corrosion resistance and conductivity of BPP places our work among the most efficient anticorrosion systems in PEMFC applications reported so far. |
| WOS关键词 | FUEL-CELL ; MECHANICAL-PROPERTIES ; 316L ; BEHAVIOR ; FILM ; 304-STAINLESS-STEEL ; ENVIRONMENT ; PROTECTION ; DIFFUSION ; GRAPHENE |
| 资助项目 | National Natural Science Foundation of China[51902054] ; National Natural Science Foundation of China[51702051] ; Natural Science Foundation of Guangdong province[2017A030313307] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000604580400015 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/32498]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Jingling; Liu, Cuiyin |
| 作者单位 | 1.Foshan Univ, Sch Mat Sci & Hydrogen Energy, Foshan 528000, Peoples R China 2.Guangdong Key Lab Hydrogen Energy Technol, Foshan 528000, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jingling,Xu, Zeling,Li, Yujian,et al. Intergranular passivation of the TiC coating for enhancing corrosion resistance and surface conductivity in stainless-steel bipolar plates[J]. JOURNAL OF MATERIALS SCIENCE,2021:15. |
| APA | Li, Jingling.,Xu, Zeling.,Li, Yujian.,Ma, Xinzhou.,Mo, Jiamei.,...&Liu, Cuiyin.(2021).Intergranular passivation of the TiC coating for enhancing corrosion resistance and surface conductivity in stainless-steel bipolar plates.JOURNAL OF MATERIALS SCIENCE,15. |
| MLA | Li, Jingling,et al."Intergranular passivation of the TiC coating for enhancing corrosion resistance and surface conductivity in stainless-steel bipolar plates".JOURNAL OF MATERIALS SCIENCE (2021):15. |
入库方式： OAI收割
来源：广州能源研究所
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