| Corrosion and conductivity properties of Ni-P/Ti4O7 coating on carbon steel as bipolar plates for proton exchange membrane fuel cells | |
| Yu, Haiqiang1,2; Guo, Quanzhong1; Du, Keqin1; Lz, Dongyun1,3; Wang, Chuan1; Wang, Yong1 | |
| Corresponding Author | Du, Keqin(kqdu@imr.ac.cn) |
| 2022-07-08 | |
| Source Publication | ANTI-CORROSION METHODS AND MATERIALS
 |
| ISSN | 0003-5599 |
| Pages | 9 |
| Abstract | Purpose The purpose of this paper is to investigate the interfacial conductivity and corrosion resistance of the Ni-P/Ti4O7 composite coating that is deposited on a carbon steel substrate as bipolar plates for proton exchange membrane fuel cells. Design/methodology/approach The Ni-P/Ti4O7 coating was prepared by electroless plating. Scanning electron microscopy, white light interference, energy dispersive spectrometry and X-ray diffraction were used, respectively, to study the surface morphology, chemical composition and phase composition of coated samples. Electrochemical impedance spectroscopy, potentiodynamic and potentiostatic polarization were used to test the electrochemical performance and corrosion behavior. The interfacial contact resistance (ICR) was measured via the standard method. Findings The surface of the Ni-P/Ti4O7 coating is complete and dense and without obvious defects. The electrochemical test results show that the Ni-P/Ti4O7 coating provides better corrosion resistance than the Ni-P coating and substrate. Compared with the Ni-P coating, the ICR of the Ni-P/Ti4O7 coating is lower by about 82.7%. This is because the coating has more conductive contact points. The more exciting thing is that the ICR of the Ni-P/Ti4O7 coating only increases to 12.38 m omega center dot cm(2) after 5 h of polarization. Originality/value This paper provides a method for achieving surface modification of metal bipolar plates. Introducing Ti4O7 particles in the Ni-P layer reduces the contact resistance before and after polarization while ensuring good corrosion resistance. |
| Keyword | Bipolar plates Ni-P Ti4O7 coating Corrosion resistance Interfacial contact resistance |
| DOI | 10.1108/ACMM-03-2022-2635 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | [2022JH6/100100003] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000820960500001 |
| Publisher | EMERALD GROUP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174826 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Du, Keqin |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Coll Mat Sci & Engn, Hefei, Peoples R China 3.Univ Sci & Technol China, Hefei, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Haiqiang,Guo, Quanzhong,Du, Keqin,et al. Corrosion and conductivity properties of Ni-P/Ti4O7 coating on carbon steel as bipolar plates for proton exchange membrane fuel cells[J]. ANTI-CORROSION METHODS AND MATERIALS,2022:9. |
| APA | Yu, Haiqiang,Guo, Quanzhong,Du, Keqin,Lz, Dongyun,Wang, Chuan,&Wang, Yong.(2022).Corrosion and conductivity properties of Ni-P/Ti4O7 coating on carbon steel as bipolar plates for proton exchange membrane fuel cells.ANTI-CORROSION METHODS AND MATERIALS,9. |
| MLA | Yu, Haiqiang,et al."Corrosion and conductivity properties of Ni-P/Ti4O7 coating on carbon steel as bipolar plates for proton exchange membrane fuel cells".ANTI-CORROSION METHODS AND MATERIALS (2022):9. |
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