Atmospheric Plasma Surface Modification on Stainless Steel Bipolar Plate in PEMFC
In this research, stainless steel bipolar plates for proton exchange membrane fuel cell (PEMFC) have been treated by an atmospheric plasma surface modification technology. The chemical composition and thickness of the oxide film formed by plasma are conducted to verify by Auger electron spectroscopy (AES). Pitting resistance, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) are measured to evaluate the corrosion mechanism and electrochemical properties. The results show that the treated plates have a much thicker oxide film which leads to higher pitting potential, improved corrosion rate, less and smaller pitting holes than those without treatment. The stable chemical and electrochemical properties of the treated stainless steel bipolar plate indicate the stabilization of cell performance and longer service life.
stainless steel bipolar plate PEMFC plasma pitting corrosion
Liu Feng Li Hongxia Wang Qi Xin Yonglei Li Xiangbo
Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research
国际会议
西安
英文
299-302
2011-05-11（万方平台首次上网日期，不代表论文的发表时间）