کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10567435 | 973278 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reoxidation behavior of Ni-Fe bimetallic anode substrate in solid oxide fuel cells using a thin LaGaO3 based film electrolyte
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Reoxidation behavior of Ni-Fe bimetallic anode substrate in solid oxide fuel cells using a thin LaGaO3 based film electrolyte Reoxidation behavior of Ni-Fe bimetallic anode substrate in solid oxide fuel cells using a thin LaGaO3 based film electrolyte](/preview/png/10567435.png)
چکیده انگلیسی
The reoxidation behavior of a Ni-Fe metal anode supported cell using a thin LaGaO3 electrolyte film was investigated as a function of the reoxidation temperature. After oxidation and reduction treatments for 2Â h, the voltage did not return to the initial voltage at higher temperatures (773-973Â K); however, after reoxidation at 673Â K, the cell exhibited almost the same OCV as the as-prepared cell. During reoxidation with air at the higher temperatures, the Ni-Fe metal substrate exhibited two different expansion behaviors by the different oxidation rates of Ni and Fe. On the other hand, the volumetric change of the oxidized substrate at 673Â K was negligible. SEM-EDX results exhibited the reoxidation of Ni-Fe occurred only at the bottom part of the substrate and at the interface between the electrolyte and the substrate. In spite of temperatures as low as 673Â K, the cell generated a power of 160Â mWÂ cmâ2, which hardly decreased after the redox cycle. The increasing anodic internal resistance accompanied with unreduced Fe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 196, Issue 15, 1 August 2011, Pages 6062-6069
Journal: Journal of Power Sources - Volume 196, Issue 15, 1 August 2011, Pages 6062-6069
نویسندگان
Young-Wan Ju, Shintaro Ida, Toru Inagaki, Tatsumi Ishihara,