کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1274345 1497544 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved durability of SOEC stacks for high temperature electrolysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Improved durability of SOEC stacks for high temperature electrolysis
چکیده انگلیسی

An experimental study has been conducted at Idaho National Laboratory to demonstrate recent improvements in long-term durability of solid oxide electrolysis cells (SOEC) and stacks. Results of five stack tests are presented. Electrolyte-supported SOEC stacks were provided by Ceramatec Inc. and electrode-supported SOEC stacks were provided by Materials and Systems Research Inc. (MSRI), for these tests. Long-term durability tests were generally operated for durations of 1000 h or more. Stack tests based on technologies developed at Ceramatec and MSRI have shown significant improvement in durability in the electrolysis mode. Long-term degradation rates of 3.2%/khr and 4.6%/khr were observed for MSRI and Ceramatec stacks, respectively. One recent Ceramatec stack even showed negative degradation (performance improvement) over 1900 h of operation. Optimization of electrode and electrolyte materials, interconnect coatings, and electrolyte–electrode interface microstructures contribute to improve the durability of SOEC stacks.

▶ Developed the testing apparatus for SOEC stack testing. ▶ Demonstrated improving durability of SOEC stacks. ▶ One Ceramatec SOEC stack showed negative degradation (performance increase) during 1900 h test.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 1, 11 January 2013, Pages 20–28
نویسندگان
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