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Enhancing performance of microbial fuel cell treating distillery wastewater using carbon supported Nickel-phthalocyanine/MnOx as novel cathode catalyst

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Abstract

Three MFCs with different catalyst incorporated on carbon felt cathode, viz. nickel phthalocyanine-MnOx (NiPc-MnOx) composite (MFC-1), platinum (MFC-2), control MFC with bare carbon felt (MFC-3) were used for treating distillery wastewater. The linear sweep voltammetry studies revealed that a maximum current density of 3.7 Am−2 was achieved for NiPc-MnOx/C catalysed cathode, which is 13-folds higher than that for control cathode (0.27 Am−2). Consequently, MFC-1 demonstrated a power density of 48.8 mWm−2, which was around 3.3-folds higher than the control MFC (14.9 mWm−2) owing to the improved oxidation reduction kinetics in case of NiPc-MnOx/C catalysed cathode. Coulombic efficiency (CE) was enhanced by a margin of about 11 % for MFC-1 (24.8 %) in comparison to MFC-3 (13.4 %). MFC-2 having platinum cathode catalyst exhibited a power density of 61.3 mWm−2, which was slightly higher than that achieved by MFC-2. However, NiPc-MnOx was prepared at 3-fold less cost as compared to platinum. Hence, NiPc-MnOx/C can be used as an alternative to platinum as cathode catalyst in MFC treating distillery wastewater.

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Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Technology, Kharagpur, 721302, India

    B. R. Tiwari & M. M. Ghangrekar

  2. Department of Agriculture and Food Engineering, Indian Institute of Technology, Kharagpur, 721302, India

    Md. T. Noori

Authors
  1. B. R. Tiwari
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  2. Md. T. Noori
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  3. M. M. Ghangrekar
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Tiwari, B.R., Noori, M.T. & Ghangrekar, M.M. Enhancing performance of microbial fuel cell treating distillery wastewater using carbon supported Nickel-phthalocyanine/MnOx as novel cathode catalyst. MRS Advances 3, 657–662 (2018). https://doi.org/10.1557/adv.2018.73

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  • DOI: https://doi.org/10.1557/adv.2018.73

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