Effect of MnO2:rGO ratio on the performance of a microbial fuel cell: An experimental optimization study. Issue 5 (4th March 2019)

• Record Type: Journal Article
• Authors: Divya Priya, A.; Pydi Setty, Y.
• Is Part Of: Energy sources. Volume 41:Issue 5(2019)
• Page Start: 600
• Page End: 610
• Publication Date: 2019-03-04
• Subjects: Biocatalyst -- cathode catalyst optimization -- microbial fuel cell -- MnO2:rGO -- wastewater; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2018.1520343
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: Oxygen reduction reaction plays an important role in improving the performance of microbial fuel cell (MFC). MnO2 :rGO with different ratios (100:0), (85:15), (75:25), and (60:40) were used as cathode electro-catalyst, and performance analysis was done to find the optimum ratio. The isolated bacteria with new strain, Bacillus subtilis subspecies spizizenii strain No NBRC 101239 (ACCESSION no NR_112686) was used for the first time as a biocatalyst. MnO2 and MnO2 :rGO were synthesized by reflux method and were characterized by X-ray diffractometer, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, and laser Raman spectroscopy. It was found that the MFC with ratio (75:25) showed higher performance with maximum power density 32.5 mW/m 2 compared to 6.76 mW/m 2 (85:15), 3.79 mW/m 2 (100:0), and 3 mW/m 2 (60:40).