用于质子交换膜燃料电池中316不锈钢双极板的功能化改性二氧化钛聚苯胺涂层

Functionalized Modified TiO Polyaniline Coating for 316SS Bipolar Plate in Proton-Exchange Membrane Fuel Cells.

作者信息

Zhao Ting, Chen Zibin, Yi Xiaoqi, Huang Enfeng, Wang Yanli

机构信息

Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.

出版信息

Polymers (Basel). 2024 Sep 13;16(18):2592. doi: 10.3390/polym16182592.

DOI:10.3390/polym16182592

PMID:39339057

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11435329/

Abstract

In this paper, the PANI/PDA-TiO composite coating was prepared on 316L by constant current deposition with a current density of 2.8 mA·cm, in which the TiO powders were modified by PDA (polydopamine). The open-circuit potential of the obtained PANI/PDA-TiO composite coating is about 365 mV, which is more positive than that of the bare 316L. During immersion in 1 M HSO + 2 ppm HF for 200 h, the high stable corrosion potential and the lower indicate that the composite coating has long-term corrosion resistance.

摘要

在本文中，通过恒电流沉积法，以2.8 mA·cm的电流密度在316L上制备了聚苯胺/聚多巴胺修饰的二氧化钛（PANI/PDA-TiO）复合涂层，其中二氧化钛（TiO）粉末通过聚多巴胺（PDA）进行了改性。所制备的聚苯胺/聚多巴胺修饰的二氧化钛复合涂层的开路电位约为365 mV，比裸316L更正向。在1 M硫酸 + 2 ppm氢氟酸中浸泡200小时期间，高稳定的腐蚀电位和较低的（此处原文缺失相关内容）表明该复合涂层具有长期耐腐蚀性。