Ferritic stainless steels as bipolar plate material for polymer electrolyte membrane fuel cells |
| |
| Affiliation: | 1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;3. Center of Analysis and Measurement, Harbin Institute of Technology, Harbin 150001, China;4. School of Automotive Studies, Tongji University, Shanghai, 201800, China;5. Clean Energy Automotive Engineering Center, Tongji University, Shanghai, 201800, China;1. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, PR China;2. SUSTech Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, Guangdong Province, PR China;3. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, PR China;4. Shenzhen Southerntech Fuel Cell Corp., Ltd., Shenzhen, Guangdong Province, PR China;1. School of Defense Science, Chung Cheng Institute of Technology, National Defense University, Taoyuan, Taiwan;2. Department of Chemical & Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan, Taiwan;3. Department of Power Vehicle and Systems Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan, Taiwan;1. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, India;2. Materials Processing and Corrosion Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India;1. Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, PR China;2. School of Mechanical and Power Engineering, Dalian Ocean University, Dalian 116023, PR China |
| |
| Abstract: | Both interfacial contact resistance (ICR) measurements and electrochemical corrosion techniques were applied to ferritic stainless steels in a solution simulating the environment of a bipolar plate in a polymer electrolyte membrane fuel cell (PEMFC). Stainless steel samples of AISI434, AISI436, AISI441, AISI444, and AISI446 were studied, and the results suggest that AISI446 could be considered as a candidate bipolar plate material. In both polymer electrolyte membrane fuel cell anode and cathode environments, AISI446 steel underwent passivation and the passive films were very stable. An increase in the ICR between the steel and the carbon backing material due to the passive film formation was noted. The thickness of the passive film on AISI446 was estimated to be 2.6 nm for the film formed at −0.1 V in the simulated PEMFC anode environment and 3.0 nm for the film formed at 0.6 V in the simulated PEMFC cathode environment. Further improvement in the ICR will require some modification of the passive film, which is dominated by chromium oxide. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
