Preparation and performance of PANI/CNTs composite coating on 316 stainless steel bipolar plates by pulsed electrodeposition

doi:10.1016/j.porgcoat.2023.107611

IMR OpenIR

	Preparation and performance of PANI/CNTs composite coating on 316 stainless steel bipolar plates by pulsed electrodeposition
	Yu, Haiqiang 1,2; Guo, Quanzhong 1; Wang, Chuan 1; Cao, Gongwang 1; Liu, Yuwei 1
通讯作者	Guo, Quanzhong(qzguo@imr.ac.cn)
	2023-09-01
发表期刊	PROGRESS IN ORGANIC COATINGS
ISSN	0300-9440
卷号	182 页码:9
摘要	Compact polyaniline (PANI) coating and polyaniline/carbon nanotubes (PANI/CNTs) composite coating are prepared on the surface of 316 stainless steel bipolar plate for proton exchange membrane fuel cells by a new method of pulse electrodeposition. The micro morphology shows that the PANI coating prepared by pulse electrodeposition is more uniform and compact than that by direct current electrodeposition. The compactness, corrosion resistance and electrical conductivity of PANI coating are further increased after CNTs are compounded. The results show that compared with PANI coating, the corrosion potential of PANI/CNTs coating is increased by about 78 mV, and the corrosion current density is reduced by an order of magnitude. Under the working potential of 0.6 V (vs. SCE), the current density of PANI/CNTs coating is reduced to about 1.9 mu A.cm(-2). After potentiostatic test for 5 h, there was no obvious corrosion on the surface of the coating. The interfacial contact resistance (ICR) contact resistance of PANI/CNTs coating is reduced by 35 % compared with PANI coating, and after the polarization process, PANI/CNTs coating has lower contact resistance than PANI coatings. The improved corrosion resistance and electrical conductivity of PANI/CNTs coating can be better applied in the protection of bipolar plates.
关键词	Pulsed electrodeposition PANI CNTs Bipolar plate
资助者	Central Government Funds for Guiding Local Science and Technology Development ; Basic applied study of Liaoning Province ; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station
DOI	10.1016/j.porgcoat.2023.107611
收录类别	SCI
语种	英语
资助项目	Central Government Funds for Guiding Local Science and Technology Development[2022JH6/100100003] ; Basic applied study of Liaoning Province[2022JH2/101300007] ; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Applied ; Materials Science, Coatings & Films
WOS记录号	WOS:000984906300001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178088
专题	中国科学院金属研究所
通讯作者	Guo, Quanzhong
作者单位	1.Chinese Acad Sci, Inst Met Res, Beijing, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Yu, Haiqiang,Guo, Quanzhong,Wang, Chuan,et al. Preparation and performance of PANI/CNTs composite coating on 316 stainless steel bipolar plates by pulsed electrodeposition[J]. PROGRESS IN ORGANIC COATINGS,2023,182:9.
APA	Yu, Haiqiang,Guo, Quanzhong,Wang, Chuan,Cao, Gongwang,&Liu, Yuwei.(2023).Preparation and performance of PANI/CNTs composite coating on 316 stainless steel bipolar plates by pulsed electrodeposition.PROGRESS IN ORGANIC COATINGS,182,9.
MLA	Yu, Haiqiang,et al."Preparation and performance of PANI/CNTs composite coating on 316 stainless steel bipolar plates by pulsed electrodeposition".PROGRESS IN ORGANIC COATINGS 182(2023):9.