کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7734464 1497959 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvement of microbial fuel cell cathodes using cost-effective polyvinylidene fluoride
ترجمه فارسی عنوان
بهبود کاتیدهای سلول های سوختی میکروبی با استفاده از فلوئورید پلی وینیلیدین مقرون به صرفه
کلمات کلیدی
سلول های سوختی میکروبی، کاتد، پلی وینیلیدین فلوراید، لایه پراکندگی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
In this study polyvinylidene fluoride (PVDF) is investigated as an alternative to polytetrafluoroethylene (PTFE) for air-cathode diffusion layers (DLs) in microbial fuel cells (MFCs) for the improvement of MFC power generation. It is found that the cathode fabricated with PVDF achieves a higher maximum power density (MPD) than a PTFE cathode. Successive PVDF or PVDF/carbon black DLs are applied on the base layers in order to optimize cathode performance. The results show significant improvements in such performances as the coulombic efficiency (CE), MPD, and water loss. In electrochemical tests, the cathode coated with four PVDF DLs has the largest current response at a given applied potential, yielding the highest MPD of 0.123 mW cm−2 (normalized to the projected cathode surface area) and largest CE (10.7%) in the MFC test. Carbon black is added to the DLs in order to test its effect on the MFC power generation. Cathodes made from pure PVDF DLs perform better than those containing PVDF/carbon black DLs in electrochemical and MFC tests. In addition, a smaller MFC (28 mL) produces a much higher MPD than a larger MFC (700 mL), resulting in an increase in the CE.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 273, 1 January 2015, Pages 566-573
نویسندگان
, , , , , ,