Manganese dioxide-coated carbon nanotubes as an improved cathodic catalyst for oxygen reduction in a microbial fuel cell

2011 ◽  
Vol 196 (22) ◽  
pp. 9284-9289 ◽  
Author(s):  
Yaping Zhang ◽  
Yongyou Hu ◽  
Sizhe Li ◽  
Jian Sun ◽  
Bin Hou
2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yuan Haoran ◽  
Deng Lifang ◽  
Lu Tao ◽  
Chen Yong

Much effort has been devoted to the synthesis of novel nanostructured MnO2materials because of their unique properties and potential applications as cathode catalyst in Microbial fuel cell. Hybrid MnO2nanostructures were fabricated by a simple hydrothermal method in this study. Their crystal structures, morphology, and electrochemical characters were carried out by FESEM, N2-adsorption-desorption, and CV, indicating that the hydrothermally synthesized MnO2(HSM) was structured by nanorods of high aspect ratio and multivalve nanoflowers and more positive than the naturally synthesized MnO2(NSM), accompanied by a noticeable increase in oxygen reduction peak current. When the HSM was employed as the cathode catalyst in air-cathode MFC which fed with leachate, a maximum power density of 119.07 mW/m2was delivered, 64.68% higher than that with the NSM as cathode catalyst. Furthermore, the HSM via a 4-e pathway, but the NSM via a 2-e pathway in alkaline solution, and as 4-e pathway is a more efficient oxygen reduction reaction, the HSM was more positive than NSM. Our study provides useful information on facile preparation of cost-effective cathodic catalyst in air-cathode MFC for wastewater treatment.


2008 ◽  
Vol 33 (18) ◽  
pp. 4856-4862 ◽  
Author(s):  
Yongjin Zou ◽  
Cuili Xiang ◽  
Lini Yang ◽  
Li-Xian Sun ◽  
Fen Xu ◽  
...  

2015 ◽  
Vol 40 (35) ◽  
pp. 11625-11632 ◽  
Author(s):  
Kien Ben Liew ◽  
Wan Ramli Wan Daud ◽  
Mostafa Ghasemi ◽  
Kee Shyuan Loh ◽  
Manal Ismail ◽  
...  

2010 ◽  
Vol 44 (18) ◽  
pp. 5298-5305 ◽  
Author(s):  
Xian-Wei Liu ◽  
Xue-Fei Sun ◽  
Yu-Xi Huang ◽  
Guo-Ping Sheng ◽  
Kang Zhou ◽  
...  

2011 ◽  
Vol 13 (9) ◽  
pp. 903-905 ◽  
Author(s):  
Jin-Na Zhang ◽  
Shi-Jie You ◽  
Yi-Xing Yuan ◽  
Qing-Liang Zhao ◽  
Guo-Dong Zhang

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