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Power production enhancement with polyaniline composite anode in benthic microbial fuel cells

聚苯胺修饰阳极对海底微生物燃料电池的产能影响

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Abstract

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/m2 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/m2). 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.

摘要

本研究采用电化学法在碳毡阳极的表面原位合成聚苯胺或聚苯胺–铁/锰复合物以改善阳极的电 化学性能,进而提高海底微生物燃料电池的产能。分别采用4 种方法合成聚苯胺,包括恒电位法、脉 冲电位法、循环伏安法和线性伏安法。结果表明,由于脉冲电流的存在,采用脉冲电位法合成的聚苯 胺具有颗粒小、比表面积大的优点,其改性阳极能够更有效地降低阳极内阻同时提高海底微生物燃料 电池的电能输出。采用脉冲电位法合成聚苯胺–铁/锰复合物修饰碳毡阳极,结果表明,铁/锰金属的掺 杂进一步增强了改性电极的导电性能,进而使电池的功率输出提升为未改性电极的8.1 和7.7 倍。本 研究首次将聚苯胺及其复合物改性阳极应用到海底微生物燃料电池中,对推动海底微生物燃料电池的 实用化具有一定意义。

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Authors and Affiliations

  1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China

    Yu-hong Jia  (贾玉红) & Hong You  (尤宏)

  2. School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, China

    Yu-hong Jia  (贾玉红), Zhen-lian Qi  (亓振莲) & Hong You  (尤宏)

Authors
  1. Yu-hong Jia  (贾玉红)
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  2. Zhen-lian Qi  (亓振莲)
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  3. Hong You  (尤宏)
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Corresponding author

Correspondence to Hong You  (尤宏).

Additional information

Foundation item: Project(HIT.NSRIF.2014128) supported by the Fundamental Research Funds for the Central Universities, China; Project(2014M551257) supported by the China Postdoctoral Science Foundation; Project(WH20150208) supported by the Subject Development Foundation of Harbin Institute of Technology at Weihai, China

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Jia, Yh., Qi, Zl. & You, H. Power production enhancement with polyaniline composite anode in benthic microbial fuel cells. J. Cent. South Univ. 25, 499–505 (2018). https://doi.org/10.1007/s11771-018-3754-3

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  • DOI: https://doi.org/10.1007/s11771-018-3754-3

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