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›› 2008, Vol. 8 ›› Issue (5): 998-1002.

• 材料工程专栏 • 上一篇    下一篇

直接微生物燃料电池阴极的制备及优化

徐源 宋天顺 叶晔捷 陈英文 沈树宝 沈树宝   

  1. 南京工业大学 南京工业大学国家生化工程技术研究中心 南京工业大学国家生化工程技术研究中心 南京工业大学材料科学与工程学院 南京工业大学制药与生命科学学院
  • 收稿日期:2008-06-23 修回日期:2008-08-21 出版日期:2008-10-20 发布日期:2008-10-20

Fabrication and Optimization of Cathode in a Direct Microbial Fuel Cell

XU Yuan SONG Tian-shun YE Ye-jie CHEN Ying-wen ZHU she-min SHEN Shu-bao   

  1. National Engineering Research Centre for Biochemistry, Nanjing University of Technology National Engineering Research Centre for Biochemistry, Nanjing University of Technology College of material science and engineering, Nanjing University of Technology College of Pharmacy and Life Science,Nanjing University of Technology
  • Received:2008-06-23 Revised:2008-08-21 Online:2008-10-20 Published:2008-10-20

摘要: 研究了直接微生物燃料电池阴极的制备方法,考察了制备过程中的主要影响因素,并通过功率密度曲线及伏安曲线对不同条件下制备的阴极性能进行了评价. 结果表明,防渗层中聚四氟乙烯含量、催化层中Nafion含量及整平层碳含量对阴极性能均有较大影响,当聚四氟乙烯浓度为30%及Nafion含量为2.8 mL、碳含量为0.18 g时,阴极性能最好,此时微生物燃料电池的输出功率密度为357 mW/m2, COD去除率达到90%.

关键词: 微生物燃料电池, 阳极, 功率密度

Abstract: A fabrication method of cathode in a direct microbial fuel cell was studied, and the primary influential factors of fabrication were investigated. The performances of cathodes obtained at different fabricating conditions were evaluated by the power density and voltage-current curves. The results showed that they were much affected by the concentration of PTFE in the impermeable layer, Nafion content in the catalyst layer and carbon content in the flattening layer. When the concentration of PTFE was 30%(w), Nafion content 2.8 mL, and carbon content 0.18 g, the best performance was obtained. The power density output was 357 mW/m2, and the COD removal rate reached 90%.

Key words: microbial fuel cell, cathode, power density

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