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	Evaluation of applied cathode potential to enhance biocathode in microbial fuel cells
	Liang, Peng ; Fan, Mingzhi ; Cao, Xiaoxin ; Huang, Xia
	2010-10-12 ; 2010-10-12
关键词	microbial fuel cell cathode potential biocathode power generation OXYGEN REDUCTION INTERNAL RESISTANCE ELECTRIC-FIELDS CATALYSTS CONFIGURATION COTMPP Biotechnology & Applied Microbiology Chemistry, Multidisciplinary Engineering, Chemical
中文摘要	BACKGROUND: The biocathode is proving to be a promising feature for development of the microbial fuel cell (MFC), although much work remains to be done to increase its power generation. This study aimed to enhance the performance of a biocathode by applying selected cathode potential. RESULTS: When five two-chambered MFCs were operated at selected cathode potentials of 142, 242, 342, 442, or 542 mV (vs standard hydrogen electrode), those MFCs with selected potentials lower than 342 mV could start up, and the highest power density of 0.11 W m(-3) was obtained at a selected potential of 242 mV. An inner-biocathode MFC was then constructed and operated at a start-up cathode potential of 242 mV for 30 days. The open circuit cathode potential increased from 477 +/- 9 mV to 572 +/- 8 mV compared with the potential of the initially abiotic cathode, resulting in an increase in the maximum power density (4.25 +/- 0.16 W m(-3)) of 106%. In addition, tests of continuous operation showed that a loading rate of 135 mg COD L-1 d(-1) was optimal for obtaining maximum power generation in the system developed for this study. CONCLUSION: The results indicated that an optimal cathode potential of 242 mV enhanced the performance of a biocathode using oxygen as the electron acceptor. (C) 2009 Society of Chemical Industry
语种	英语 ; 英语
出版者	JOHN WILEY & SONS LTD ; CHICHESTER ; THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79684]
专题	清华大学
推荐引用方式 GB/T 7714	Liang, Peng,Fan, Mingzhi,Cao, Xiaoxin,et al. Evaluation of applied cathode potential to enhance biocathode in microbial fuel cells[J],2010, 2010.
APA	Liang, Peng,Fan, Mingzhi,Cao, Xiaoxin,&Huang, Xia.(2010).Evaluation of applied cathode potential to enhance biocathode in microbial fuel cells..
MLA	Liang, Peng,et al."Evaluation of applied cathode potential to enhance biocathode in microbial fuel cells".(2010).

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