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This MFC study investigates anode, cathode. The research focuses on system optimization and characterization.

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What they did

System
MFC

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Abstract

Plant microbial fuel cells (PMFC) offer a promising alternative to traditional electricity sources. However, their practical application is limited due to poor electrochemical performance, which is enhanced using various electrode modifications. In this study, MnO2 was electrochemically deposited on the surface of carbon felt and then used as a bifunctional material for the anode and cathode configurations in PMFC systems. The modified carbon felt samples were characterized in terms of electrochemically active surface area and the number of defects determined using cyclic voltammetry and Raman spectroscopy. The resulting density power was 15, 2, and 33 mW/m² for the control system, PMFC-anode-MnO2, and PMFC-cathodeMnO2, respectively. Thus, the deposition of MnO2 on the cathode in PMFC systems results in a twofold increase of electrical energy generation.

Keywords

Microbial fuel cellElectricityElectricity generationElectrodeFuel cellsBiochemical engineering

Identifiers

DOI
10.26907/2542-064x.2025.2.201-222
Journal
Uchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki
Year
2025