Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145296 | International Journal of Hydrogen Energy | 2017 | 10 Pages |
Abstract
Performance of microbial fuel cells (MFCs) with carbon supported nickel phthalocyanine (NiPc)MnOx composite (MFC-1) and nickel phthalocyanine (MFC-2) incorporated cathode was compared with a control MFC with non-catalysed carbon felt as cathode (MFC-3) and MFC-4 having Pt on cathode (as benchmark reference control). MFC-1 exhibited power density of 8.02Â Wmâ3, which was four folds higher than control MFC-3 (2.08Â Wmâ3) and 1.14 times higher than MFC-2 (6.97Â Wmâ3). Coulombic efficiency of 30.3% obtained in MFC-1 was almost double of that obtained for control MFC-3 and it was 5.4% lesser as compared to MFC-4 (35.7%). Linear sweep voltammetry study of cathodes revealed that NiPc-MnOx could enhance the electrocatalytic activity of oxygen reduction reaction (ORR) in comparison to control cathode. However, the power recovery from MFC-1 was noted little lower than what obtained from MFC-4 (10.58Â Wmâ3), however the cost normalized power was two times higher than Pt catalyst on cathode. Thus, NiPc-MnOx based catalyst developed in this study has potential to enhance ORR in cathodes of MFCs in order to harvest more power.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
B.R. Tiwari, Md. T. Noori, M.M. Ghangrekar,