Journal
JOURNAL OF CENTRAL SOUTH UNIVERSITY
Volume 25, Issue 3, Pages 499-505Publisher
JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
DOI: 10.1007/s11771-018-3754-3
Keywords
benthic microbial fuel cell; anode modification; polyaniline; high power output
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Funding
- Fundamental Research Funds for the Central Universities, China [HIT.NSRIF.2014128]
- China Postdoctoral Science Foundation [2014M551257]
- Subject Development Foundation of Harbin Institute of Technology at Weihai, China [WH20150208]
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In this study, conductive polymer polyaniline (PANI) is employed to modify the anodes of benthic microbial fuel cells (BMFC). Four electrochemical methods are used to synthesize the polyaniline anodes; the results show that the PANI modification, especially the pulse potential method for PANI synthesis could obviously improve the cell energy output and reduce the anode internal resistance. The anode is modified by PANI doped with Fe or Mn to further improve the BMFC performance. A maximum power density of 17.51 mW/m(2) is obtained by PANI-Fe anode BMFC, which is 8.1 times higher than that of control. The PANI-Mn anode BMFC also gives a favorable maximum power density (16.78 mW/m(2)). Fe or Mn modification has better effect in improving the conductivity of polyaniline, thus improving the energy output of BMFCs. This work applying PANI composite anode into BMFC brings new development prospect and could promote the practical application of BMFC.
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