Enhancement of electricity generation and sulfide removal in microbial fuel cells with lead dioxide catalyzed cathode

被引：0
|
作者：
Zhang, Baogang [1 ]
Ni, Jinren [1 ]
机构：
[1] Peking Univ, Dept Environm Engn, Beijing, Peoples R China
来源：
2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010) | 2010年
基金：
中国国家自然科学基金;
关键词：
microbial fuel cells; lead dioxide; sulfide; HYDROGEN-SULFIDE; OXIDATION; ANODES; SULFUR;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Lead dioxide catalyzed cathode (PbO2) which has high overpotential and electrode potential with low cost was tested in microbial fuel cells (MFCs) for sulfide removal in this study, compared with traditional platinum based carbon cathode (Pt/C). The maximum power density of 997.26 +/- 20.20 mW/m2 was realized, with sulfide removal efficiency as high as 88.73 +/- 4.37%, both showing advantage to Pt/C cathode. The products of sulfide oxidation were examined and elemental sulfur was found to be generated during energy recovery. The MFC with PbO2 cathode got higher elemental sulfur generation than that with Pt/C cathode. Pb(II) was not detected in cathodic electrolyte during operation, indicating that PbO2 was an effective and environmental-friendly cathodic catalyst to Pt in MFCs for electricity generation and sulfide removal.
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页数：4
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