MnO2/Polypyrrole/MnO2 multi-walled-nanotube-modified anode for high-performance microbial fuel cells

被引：71

作者：

Yuan, Haoran ^{[1
,3
]}

Deng, Lifang ^{[1
,3
]}

Chen, Yong ^{[1
,3
]}

Yuan, Yong ^{[2
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China

[3] Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 196卷

基金：

中国国家自然科学基金;

关键词：

multi-walled MnO2/polypyrrole/MnO2; nanotube; extracellular electrode transfer; electrochemical oxygen-reduction; electrochemical impedance spectroscopy; CARBON NANOTUBE/POLYANILINE COMPOSITE; ELECTRON-TRANSFER MECHANISMS; ENHANCED PERFORMANCE; MANGANESE-DIOXIDE; GENERATION; ENERGY; BIOELECTRICITY; CHALLENGES; CATALYST; ARRAYS;

D O I：

10.1016/j.electacta.2016.02.183

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hierarchical multi-walled MnO2/polypyrrole/MnO2 nanotubes (NT-MPMs) were synthesized by a hydrothermal method and were decorated on a carbon cloth anode to promote microbial fuel cell (MFC) power production. Compared with bare carbon cloth (CK) anodes, the maximum power density of the MFC with an NT-MPM-decorated anode reaches 32.7 +/- 3 W/cm(3), which is approximately 1.3 times higher than that of the CK, and it exhibits excellent durability. The voltage outputs of the NT-MPM anode MFC decreased by 9.2% after being subjected to more than 90 full discharging-charging cycles. In additionbanode, which facilitated biofilm growth and promoted extracellular electron transfer between the bacteria and the electrode. Electrochemical impedance spectroscopy (EIS) measurements reveal that NT-MPM anodes lead to a low charge transfer resistance and provide unique active centers that host the bacteria for more efficient electrocatalysis. This study introduces a promising method for the fabrication of high-performance anodes from simple, inexpensive materials. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：280 / 285

页数：6

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