کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7726795 | 1497903 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of gas products around the anode on the performance of a direct carbon fuel cell using a carbon/carbonate slurry
ترجمه فارسی عنوان
تاثیر محصولات گاز در اطراف آند در عملکرد یک سلول سوخت مستقیم کربن با استفاده از یک کودهای کربن / کربناته
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
This paper investigates the impact of gas products around the anode on cell performance via an in situ observation. In a direct carbon fuel cell used this study, the anode is inserted into the carbon/carbonate slurry. The current-voltage (I-V) curves are measured before and after a long discharge in the constant current discharge mode. An in situ observation shows that the anode is almost completely covered by gas bubbles when the voltage becomes nearly 0Â V in the constant current discharge at 40Â mA/cm2; this indicates that gas products such as CO2 prevent the carbon particles and ions from reaching the anode. Meanwhile, the long discharge at 20Â mA/cm2 is achieved for 30Â min, even though the anode is covered by the CO2 bubbles at 15Â min. The I-V curves at 1Â min after the termination of the long discharge at 20Â mA/cm2 are lower than those prior to the long discharge. The overpotential significantly increases at higher current densities, where mass transport becomes the limiting process. The cell performance is significantly influenced by the gas products around the anode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 329, 15 October 2016, Pages 567-573
Journal: Journal of Power Sources - Volume 329, 15 October 2016, Pages 567-573
نویسندگان
Hirotatsu Watanabe, Daisuke Umehara, Katsunori Hanamura,