Fe-N Modified Carbon Black as a High-performance and Cost-effective Cathode Catalyst in Microbial Fuel Cells

【Author】

XIE Yang-En;WANG Ding-Ling;MA Zhao-Kun;SONG Huai-He;XU Pei

【Institution】

State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology;State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology;State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology;State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology;Department of Civil Engineering, New Mexico State University

【Abstract】

Carbon black is a high conductive and cheap catalyst for oxygen reduction, which can be used as cathode catalyst of microbial fuel cells. However, pure carbon black has low catalytic activity which does not meet the requirement in practical field. In order to improve the catalytic performance of carbon black, ferric chloride (FeCl 3) and melamine, as sources of Fe and N respectively, were mixed with carbon black at a certain ratio and co-carbonized. The results show that the output power density reaches the highest value (1 395 mW/m 2) with the mass ratio of 2.6:1 (FeCl 3-melamine/carbon black), which is 59% higher than that of the widely used Pt/C catalyst (876 mW/m 2). The SEM images show that some elliptic or columnar crystals are formed on the surface of carbon black, which is testified to be Fe 3C crystal by XRD and XPS. Meanwhile, pyridinic and quaternary nitrogen generated by carbonization provides more active sites on the catalyst surface, thus improving the catalytic performance of composite catalyst. With the increasing ratio of Fe-N, the conductivity and the surface area of composite catalyst decrease gradually, which limit the catalytic performance. All those data demonstrate that the catalyst generated by FeCl 3, melamine and carbon black is an exceptional cost-effective cathode catalyst which can be used in scale-up MFCs.

【Keywords】

microbial fuel cells;oxygen reduction;carbon black;ferric chloride;melamine

References

To explore the background and basis of the node document

Springer Journals Database

Total: 17 articles

  • [1] Yang'en Xie;Zhaokun Ma;Huaihe Song;Zachary A.Stoll;Pei Xu;State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology;Department of Civil Engineering, New Mexico State University;, Melamine modified carbon felts anode with enhanced electrogenesis capacity toward microbial fuel cells, Journal of Energy Chemistry,
  • [2] Lixia Zhang;;Chengshuai Liu;;Li Zhuang;;Weishan Li;;Shungui Zhou;;Jintao Zhang, Manganese dioxide as an alternative cathodic catalyst to platinum in microbial fuel cells, Biosensors and Bioelectronics,
  • [3] Gang Liu;;Xuguang Li;;Prabhu Ganesan;;Branko N. Popov, Development of non-precious metal oxygen-reduction catalysts for PEM fuel cells based on N-doped ordered porous carbon, Applied Catalysis B, Environmental,
  • [4] Sizhe Li;;Yongyou Hu;;Qian Xu;;Jian Sun;;Bin Hou;;Yaping Zhang, Iron- and nitrogen-functionalized graphene as a non-precious metal catalyst for enhanced oxygen reduction in an air-cathode microbial fuel cell, Journal of Power Sources,

More>>