کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6679700 1428063 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anolyte in-situ functionalized carbon nanotubes electrons transport network as novel strategy for enhanced performance microbial fuel cells
ترجمه فارسی عنوان
آنولیت در محل کارهای نانولوله های کربنی، الکترون ها شبکه حمل و نقل را به عنوان استراتژی جدید برای افزایش عملکرد سلول های سوختی میکروبی
کلمات کلیدی
نانولوله های کربنی چند دیواره، حمل و نقل الکترونی، سلولهای سوختی میکروبی، اشریشیا کولی، تولید برق،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Anolyte in-situ electrons transport network from functionalized multi-walled carbon nanotubes is introduced as a novel strategy to compile the electrons from the anode-away microorganisms. The strategy was investigated by a single-chamber air-cathode microbial fuel cell with Escherichia coli. Based on our best knowledge, for the utilized MFC configuration, unprecedented output power (1.1 W m−2) and current density (4.1 A m−2) were obtained when 6.06 mg ml−1 autoclave-treated MWCNTs (in tryptone medium at 121 °C) was used. Moreover, after 6 h working time, the observed current density was almost duplicated in case of using the best sample compared to the carbon nanotubes-free cell. FTIR and Bio-TEM analyses indicated that the proposed hydrothermal treatment leads to functionalize the carbon nanotubes by nitrogenous groups that strongly enhances the attachment with the bacterial cell wall and improves the biocompatibility. EIS measurements confirmed the good adhesion as a small charge-transfer resistance was observed; 33 Ω. Besides the treatment temperature of the carbon nanotubes, which should be 121 °C, the concentration in the anolyte should be optimized; 6.06 mg ml−1 reveals the best performance compared to 1.21, 3.63, 8.48 and 10.9 mg ml−1. On the other hand, due to formation of the carbonyl group, acid treatment converts the carbon nanotubes to have antibacterial activity toward the E. coli that decreases the cell performance drastically.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 228, 15 October 2018, Pages 167-175
نویسندگان
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