Architecture Optimization of a Single-Chamber Air-Cathode MFC by Increasing the Number of Cathode Electrodes
Abstract
:1. Introduction
2. Materials and Methods
2.1. MFC Construction and Operation
2.2. Analytical Methods and Calculations
2.3. Linear Sweep Voltammetry (LSV) and Electrochemical Impedance Spectroscopy (EIS) for the Electrochemical Characterization of the MFC Performance
3. Results
3.1. MFC Operation with 4 and 6 Cathode Electrodes
3.2. Effect of the Number of Cathode Electrodes on Polarization and Power Output of the MFC Unit
3.3. Electrochemical Impedance Spectroscopy
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Cycle # | Imax (mA) | Δt (h) | COD Removal (%) | CE (%) | Eyield (mJ/g COD/L) |
---|---|---|---|---|---|
1 | 2.0 | 67 | 92% | 13% | 17.7 |
2 | 1.9 | 71 | 96% | 15% | 9.50 |
3 | 2.6 | 44 | 93% | 14% | 12.2 |
4 | 2.6 | 162 | 89% | 28% | 20.4 |
5 | 3.2 | 74 | 89% | 15% | 13.2 |
6 | 3.2 | 113 | 95% | 18% | 20.0 |
7 | 3.0 | 69 | 89% | 13% | 11.7 |
Electrodes # | Open Circuit Voltage (V) | Volumetric Power Density (W/m3) | Internal Resistance (Ω) |
---|---|---|---|
4 | 0.44 | 1.1 | 124 |
6 | 0.59 | 3.9 | 82 |
Electrodes # | OCV (V) | RS (Ω) | RCT (Ω) | RBF (Ω) | CBF (F) | CCT (F) |
---|---|---|---|---|---|---|
4 | 0.45 | 27 | 94 | 4.0 | 0.3 × 10−4 | 4.8 × 10−3 |
6 | 0.59 | 68 | 24 | 3.0 | 0.4 × 10−4 | 5.1 × 10−3 |
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Kamperidis, T.; Tremouli, A.; Lyberatos, G. Architecture Optimization of a Single-Chamber Air-Cathode MFC by Increasing the Number of Cathode Electrodes. Sustainability 2023, 15, 13107. https://doi.org/10.3390/su151713107
Kamperidis T, Tremouli A, Lyberatos G. Architecture Optimization of a Single-Chamber Air-Cathode MFC by Increasing the Number of Cathode Electrodes. Sustainability. 2023; 15(17):13107. https://doi.org/10.3390/su151713107
Chicago/Turabian StyleKamperidis, Theofilos, Asimina Tremouli, and Gerasimos Lyberatos. 2023. "Architecture Optimization of a Single-Chamber Air-Cathode MFC by Increasing the Number of Cathode Electrodes" Sustainability 15, no. 17: 13107. https://doi.org/10.3390/su151713107