کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568150 | 973398 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Imaging of CH4 decomposition around the Ni/YSZ interfaces under anodic polarization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Imaging of CH4 decomposition around the Ni/YSZ interfaces under anodic polarization Imaging of CH4 decomposition around the Ni/YSZ interfaces under anodic polarization](/preview/png/10568150.png)
چکیده انگلیسی
The catalytic activities of Ni-mesh/YSZ samples for CH4 decomposition and reaction with reformed gases were compared under voltage-applied condition (fuel cell operation condition) by imaging analysis of labeled gases with secondary ion mass spectrometry (SIMS). The effect of applied voltages was compared in the mixture of CH4, D2O, and 18O2 to label the movements of hydrogen and oxygen. A significant carbon deposition was observed at the Ni-mesh under zero-voltage condition. However, the applied voltage formed a thin oxide layer on the Ni surface and eliminated the deposited carbon on the Ni surface. Oxygen spill-over around the Ni/YSZ interfaces could effectively eliminate the deposited carbon. A possible reaction mechanism was considered for the optimum metal-oxide interfaces of SOFCs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 145, Issue 2, 18 August 2005, Pages 133-138
Journal: Journal of Power Sources - Volume 145, Issue 2, 18 August 2005, Pages 133-138
نویسندگان
Teruhisa Horita, Katsuhiko Yamaji, Tohru Kato, Haruo Kishimoto, Yueping Xiong, Natsuko Sakai, Manuel E. Brito, Harumi Yokokawa,