文档介绍：Enhancement of electricity generation and sulfide
removal in microbial fuel cells with lead dioxide
catalyzed cathode
Baogang Zhang Jinren Ni
Department of Environmental Engineering Department of Environmental Engineering
Peking University Peking University
Beijing, China Beijing, China
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Abstract—Lead dioxide catalyzed cathode (PbO2) which has high preparation, low pared to noble metals, chemical
overpotential and electrode potential with low cost was tested in stability in corrosive media, and high value of the overpotential
microbial fuel cells (MFCs) for sulfide removal in this study, for the oxygen evolution reaction (6). It has been widely used
compared with traditional platinum based carbon cathode (Pt/C). in electrochemical systems to catalyze oxygen reduction (7).
The maximum power density of ± mW/m2 was
However, the effect of PbO2 on electricity generation and
realized, with sulfide removal efficiency as high as ±%, contaminant removal in MFCs was little concerned in previous
both showing advantage to Pt/C cathode. The products of sulfide research.
oxidation were examined and elemental sulfur was found to be
generated during energy recovery. The MFC with PbO2 cathode In our study, the PbO2 catalyzed cathode was tested in dual-
got higher elemental sulfur genera