Huei, Ruey Ong and Chee, Wai Woon and Muhammad Sheraz, Ahmad and Yousuf, Abu and Cheng, C. K. and Khan, Maksudur R. (2018) Facile Synthesis of PVP-MnO2/CNT Composites as ORR Electrocatalyst for an Air-Cathode Microbial Fuel Cell. International Journal of Electrochemical Science, 13. pp. 7789-7799. ISSN 1452-3981. (Published)
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Abstract
The cathodic oxygen reduction reaction (ORR) is an influential step in fuel cells for the electrochemical energy conversion. Here we synthesized Polyvinylpyrrolidone incorporated carbon nanotube supported manganese dioxide (PVP-MnO2/CNT) composite and used as ORR electrocatalyst for air-cathode microbial fuel cell (MFC). The physical and electrochemical characterization of PVP-MnO2/CNT were performed by using Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray analysis (EDX), X-ray Diffraction analysis (XRD), Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The electrochemical characterization results showed that the PVP-MnO2/CNT possessed the higher ORR catalytic activity with lower charge transfer resistance compared to MnO2 and MnO2/CNT. The performance of the electrocatalysts as cathode was evaluated in air-cathode MFC and it was found that the MFC with MnO2-PVP/CNT electrocatalyst generated a maximum power density of 1365.30 mW/m3, which was higher than that of MFCs with MnO2/CNT catalyst (1083.98 mW/m3), MnO2 (540.91mW/m3) and CNT (438.47 mW/m3). Therefore, the viable synthetic strategy and proposed application of PVP-MnO2/CNT will broaden up the reality of MFC for power generation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PVP-MnO2/CNT; Microbial Fuel Cell; Electrocatayst; Oxygen reduction reaction |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering Institute of Postgraduate Studies |
| Depositing User: | Dr. MD Maksudur Rahman Khan |
| Date Deposited: | 22 Jan 2019 05:04 |
| Last Modified: | 28 Feb 2020 08:14 |
| URI: | http://umpir.ump.edu.my/id/eprint/23743 |
| Download Statistic: | View Download Statistics |
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