Sulfonated polyaniline/vanadate composite as anode material and its electrochemical property in microbial fuel cells on ocean floor

查看全文 作　　者：FU YuBin ZHAO ZhongKai LIU Jia LI KuiZhong XU Qian ZHANG [1]ShaoYun

机构地区：[1]Institute of Materials Science and Engineering,Ocean University of China,Qingdao 266100,China

出　　处：《Science China Chemistry》索引2011年第54卷第5期,共6页

基　　金：supported by the Scientific and Technological Development Plan Project of Shandong Province, China (2008GG10007003);the Key Laboratory of Marine Environment & Ecology, Ministry of Education (2008010);the Key Laboratory of Submarine Geoscience and Exploring Technology of Ministry of Education, Ocean University of China (2008-01) 摘　　要：A unique sulfonated polyaniline/vanadate composite was synthesized and utilized as a composite anode in microbial fuel cells on ocean floor (BMFCs). X-ray diffraction (XRD) and thermogravimetric analysis (TGA) were employed to characterize its chemical composition and morphology. Wettability of the composite anodes decreases due to the addition of polytetrafluoroethylene (PTFE). The electrochemical behavior of the composite anodes was investigated by means of linear sweep voltammetry and Tafel plot measurements. Compared with the plain graphite anode,the composite anode significantly improves the power density,5.5-fold higher,reaching 187.1 mW/m2 and gives a 27-fold higher exchange current density and a higher kinetic activity. A novel synergistic mechanism between sulfonated polyaniline and vanadate is proposed to explain the excellent electrochemical performance. This composite thus has great potential to be used as an anode material for a high-power BMFC. 关键词：微生物燃料电池磺化聚苯胺复合阳极电化学性能阳极材料线性扫描伏安法钒海底

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Sulfonated polyaniline/vanadate composite as anode material and its electrochemical property in microbial fuel cells on ocean floor

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