Increased performance of a tubular microbial fuel cell with a rotating carbon-brush anode

被引：39
|
作者：
Liao, Qiang [1 ,2 ]
Zhang, Jun [1 ,2 ]
Li, Jun [1 ,2 ]
Ye, Dingding [1 ,2 ]
Zhu, Xun [1 ,2 ]
Zhang, Biao [1 ,2 ]
机构：
[1] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400030, Peoples R China
[2] Chongqing Univ, Inst Engn Thermophys, Chongqing 400030, Peoples R China
来源：
BIOSENSORS & BIOELECTRONICS | 2015年 / 63卷
关键词：
Microbial fuel cells; Substrate transport; Diffusion resistance; Electrochemical activity; GENERATION; FLOW;
D O I：
10.1016/j.bios.2014.08.014
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
A novel method was proposed to improve the power output of microbial fuel cells (MFCs) by rotating the carbon-brush anode. The MFC with a rotating anode produced a peak power density of 210 +/- 3 W/m(3) and a maximum current density of 945 +/- 43 A/m(3), 1.4 and 2.7 times higher than those of the non-rotating case, respectively. The difference of the electrochemical impedance spectroscopy and cyclic voltammetry before and after anode rotation clearly suggested that the mass transfer to the spiral space was enhanced by the rotating anode. Furthermore, Tafel plots analysis also revealed that the rotating anode can improve the electrochemical activity of the biofilm. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：558 / 561
页数：4
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