【会议EI外通讯】Cathode Performance Degradation of SOFC from Sodium Chloride

Release time:2021-05-31  Hits:

• Affiliation of Author(s):材料科学工程学院
• Journal:Advanced Materials Research
• Funded by:省、市、自治区科技项目
• Key Words:NaCl, Degradation, Cathode, Solid oxide fuel cell (SOFC)
• Abstract:Degradation of cathode induced by sodium chloride in air has been investigated for (La0.8Sr0.2)0.98MnO3 (LSM). Cell performance was measured by volatilizing NaCl into the air supplied to the cathode at a constant current density of 200 mA cm-2 up to 100 h. At 800 oC, an exposure to 30 ppm NaCl caused negligible degradation of LSM cathode at least for 100 h, yet degradation became obvious with increasing NaCl concentration. Slight change in the composition of the cathode materials was observed which may lead to the gradual degradation of cell performance. In addition, cell performance degradation was compared between 700 oC to 900 oC, being poisoned by 30 ppm NaCl. Degradation was negligible for the LSM cathode, while it showed slightly poor tolerance at 700 oC due to the decomposition of the cathode material. Further study should be done to clarify the long-term influence of NaCl on cathode performance.
• Co-author:刘润茹,王德军
• First Author:lengjing
• Indexed by:Journal paper
• Volume:1051
• Page Number:2
• ISSN No.:10226680
• Translation or Not:no
• Date of Publication:2014-10-27