Materials Degradation Studies for High Temperature Steam Electrolysis Systems.

Demkowicz, P. ; Medvedev, P. ; DeWall, K. ; Lessing, P. ; Sachdev, P.

Technical Information Center Oak Ridge Tennessee

关键词: Solid electrolyte fuel cells;    Hydrogen production;    Ferritic steels;    High temperature;    Corrosion;   

RP-ID  :  DE2007912900

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Experiments are currently in progress to assess the high temperature degradation behavior of materials in solid oxide electrolysis systems. This research includes the investigation of various electrolysis cell components and balance of plant materials under both anodic and cathodic gas atmospheres at temperatures up to 850DGC. Current results include corrosion data for a high temperature nickel alloy used for the air-side flow field in electrolysis cells and a commercial ferritic stainless steel used as the metallic interconnect. Three different corrosion inhibiting coatings were also tested on the steel material. The samples were tested at 850oC for 500 h in both air and H2O/H2 atmospheres. The results of this research will be used to identify degradation mechanisms and demonstrate the suitability of candidate materials for long-term operation in electrolysis cells.