کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7717700 | 1497476 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced performances of microbial fuel cells using surface-modified carbon cloth anodes: A comparative study
ترجمه فارسی عنوان
عملکرد پیشرفته از سلول های سوختی میکروبی با استفاده از آنزیم کربن اصلاح شده سطح: یک مطالعه مقایسه ای
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کلمات کلیدی
اکسیداسیون الکتروشیمیایی، گروه های کوویندی، انتقال الکترون،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this study, performances of two-chamber microbial fuel cells (MFCs) with surface-modified carbon cloth anodes by four methods are compared including soaking in aqueous ammonia (CC-A), electrolysis in phosphate buffer (CC-P), electrolysis in nitric acid (CC-N) and electrolysis in nitric acid followed by soaking in aqueous ammonia (CC-NA). It is found that performances of all these modified anodes are better than that of the bare one. The MFC with the anode modified by CC-NA yield the maximum power density of 3.20 ± 0.05 W mâ2, which is 58%, 36%, 35% and 28% higher than those of the MFC with untreated anode (CC-C, 2.01 ± 0.02 W mâ2), and treated by the CC-A (2.35 ± 0.15), CC-N (2.38 ± 0.02 W mâ2) and CC-P (2.50 ± 0.08 W mâ2) methods, respectively. The active biomass and EIS analysis for the anodes indicated that the highest power output of the CC-NA MFC may primarily attributed to the enhanced electron transfer resulting from the existence of quinoid groups on the CC-NA surface, rather than the biomass effect. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopic analyses of the CC-NA anode further demonstrate that the formation of quinoid groups contributes to the improvement in the MFC performance by accelerating the electron transfer between electrochemically active bacteria (EAB) and the anode surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 33, 11 November 2014, Pages 19148-19155
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 33, 11 November 2014, Pages 19148-19155
نویسندگان
Jun Zhang, Jun Li, Dingding Ye, Xun Zhu, Qiang Liao, Biao Zhang,