کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1289683 | 973305 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly efficient CO2 bubble removal on carbon nanotube supported nanocatalysts for direct methanol fuel cell
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, we investigate the CO2 microbubble removal on carbon nanotube (CNT)-supported Pt catalysts in direct methanol fuel cells (DMFCs). The experiments involve the incorporation of near-catalyst-layer bubble visualization and simultaneous electrochemical measurements in a DMFC anodic half cell system, in which CH3OH electro-oxidation generate carbon dioxide (CO2) microbubbles. We observe rapid removal of smaller CO2 bubble sizes and less bubble accumulation on a Pt-coated CNT/CC (Pt/CNT/CC, CC means carbon cloth) electrode. The improved half cell performances of the high CO2 microbubble removal efficiency on the CNT-modified electrode (Pt/CNT/CC) were 34% and 32% higher than on Pt/CC and Pt/CP electrodes, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 195, Issue 6, 15 March 2010, Pages 1640-1646
Journal: Journal of Power Sources - Volume 195, Issue 6, 15 March 2010, Pages 1640-1646
نویسندگان
Soon-Lin Chen, Chun-Ting Lin, Ching-Chang Chieng, Fan-Gang Tseng,