电源技术2024，Vol.48Issue(8)：1653-1661,9.DOI:10.3969/j.issn.1002-087X.2024.08.031
基于不同商业化炭黑的PEMFC微孔层的耐腐蚀性能
Corrosion resistance of PEMFC microporous layers based on different commercial carbon blacks
摘要
Abstract
The high potential generated by the cell reversal causes irreversible carbon corrosion dam-age to the microporous layer,which greatly shortens the durability of PEMFC. So the study of car-bon corrosion in the microporous layer caused by the cell reversal has important scientific signifi-cance to strengthen the durability of PEMFC. In this study,four kinds of commercial carbon black with different degrees of graphitization were selected to prepare microporous layer,and their proper-ties before and after high-potential corrosion were analyzed. The results show that increasing the graphitization degree of carbon black and decreasing its specific surface area,the degradation degree of physical properties such as surface hydrophilicity,surface morphology and pore structure of GDL after corrosion was alleviated,and the degradation degree of cell performance was also alleviated. The corrosion resistance of the four kinds of carbon black is acetylene black>XC-72>Ketjen Black>BP2000. The physical properties of GDL prepared by acetylene black has almost no degradation after corrosion,and the performance of cell has a lower degradation degree. This provides an important theoretical basis for developing excellent reversal tolerant anode microporous layer and improving the durability of PEMFC.关键词
质子交换膜燃料电池/微孔层/反极/商业化炭黑/碳腐蚀Key words
PEMFC/micro porous layer (MPL)/cell reversal/commercial carbon black/carbon corrosion分类
信息技术与安全科学引用本文复制引用
刘金鑫,张立昌,谭金婷..基于不同商业化炭黑的PEMFC微孔层的耐腐蚀性能[J].电源技术,2024,48(8):1653-1661,9.基金项目
国家自然科学基金(22109122) （22109122）
