Preparation of MgCoO2/PEDOT@Nickel Foam as an Anode Electrode Material for Microbial Fuel Cells

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Published Sep 14, 2021
Brahmari Shetty

Abstract

Physicochemical properties of anode materials are critical for achieving the direct electron transfer between bacteria and anode to get high energy generation via. microbial fuel cells (MFCs) . In this study, the nickel foam anode was treated with hydrochloric acid, ethanol and DI water to remove the surface impurities. We independently synthesized electrode materials MgCoO2 and PEDOT using sol-gel and chemical oxidative methods. MgCoO2/PEDOT film was coated on Ni foam by surface coating. The MgCoO2/PEDOT@Ni foam anode provided a uniform mass dispersion of the growth media as well as a large surface area for microbial growth and electron mediation. The working efficiency of the composite on nickel foam has been studied using wastewater as an anolyte and glucose as its fuel. Notably, the MFC device with stretchable MgCoO2/PEDOT@NF electrodes showed a power density of 494 W m-3, which is significantly high compared to bare nickel foam anode, implying increased bioenergy production and enhanced electron transport, when it used as an anodic material inr MFC. Cyclic voltammetry and impedance spectroscopy revealed a significant improvement in electrochemical properties such as higher redox peak currents and lower interface electron-transfer resistance, supporting the idea that nanostructured anode materials perform better. This study has given a new material to prepare anode for use in microbial fuel cells to generate high electricity.

How to Cite

Shetty, B. (2021). Preparation of MgCoO2/PEDOT@Nickel Foam as an Anode Electrode Material for Microbial Fuel Cells. SPAST Abstracts, 1(01). Retrieved from https://spast.org/techrep/article/view/315
Abstract 10 |

Article Details

Keywords

Anodic materials; Microbial fuel cell; MgCoO2; poly(3,4-ethylenedioxythiophene); poly(styrenesulfonate).

References
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Section
NS1: Physics