Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis
The effect of the thickness of ceramic membrane on the productivity of microbial fuel cells (MFCs) was investigated with respect to the electricity generation and domestic wastewater treatment efficiencies. The thickest ceramic membrane (9 mm) gained the highest coulombic efficiency (27.58±4.2 %), v...
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| Format: | Article |
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Materials and Energy Research Center (MERC)
2019-02-01
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| Series: | Journal of Renewable Energy and Environment |
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| Online Access: | https://www.jree.ir/article_95555_d61940b8c84526eefecd723fbfd44490.pdf |
| _version_ | 1797790513616650240 |
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| author | Vajihe Yousefi Davod Mohebbi-Kalhori Abdolreza Samimi |
| author_facet | Vajihe Yousefi Davod Mohebbi-Kalhori Abdolreza Samimi |
| author_sort | Vajihe Yousefi |
| collection | DOAJ |
| description | The effect of the thickness of ceramic membrane on the productivity of microbial fuel cells (MFCs) was investigated with respect to the electricity generation and domestic wastewater treatment efficiencies. The thickest ceramic membrane (9 mm) gained the highest coulombic efficiency (27.58±4.2 %), voltage (681.15±33.1 mV), and current and power densities (447.11±21.37 mA/m2, 63.82±10.42 mW/m2) compared to the 6- and 3-mm thick separators. The results of electrochemical impedance spectroscopy (EIS) analysis were investigated to identify the internal resistance constituents by proposing the appropriate equivalent electrical circuit. The Gerischer element was modeled as the coupled reaction, and diffusion in the porous carbon electrodes and the constant phase element was assimilated into the electrical double-layer capacitance. The thickest ceramic (9 mm) was found to have the largest ohmic resistance; however, owing to its superior barrier capability, it provided more anoxic conditions for better accommodation of exoelectrogenic bacteria in the anode chamber. Therefore, lower charge transfer, fewer diffusional impedances, and higher rates of anodic reactions were achieved. Excessive oxygen and substrate crossover through the thinner ceramics (of 6 and 3 mm) resulted in the suppressed development of anaerobic anodic biofilm and the accomplishment of aerobic substrate respiration without electricity generation. |
| first_indexed | 2024-03-13T02:05:41Z |
| format | Article |
| id | doaj.art-d754314e401b4b6ab94807fbc496d984 |
| institution | Directory Open Access Journal |
| issn | 2423-5547 2423-7469 |
| language | English |
| last_indexed | 2024-03-13T02:05:41Z |
| publishDate | 2019-02-01 |
| publisher | Materials and Energy Research Center (MERC) |
| record_format | Article |
| series | Journal of Renewable Energy and Environment |
| spelling | doaj.art-d754314e401b4b6ab94807fbc496d9842023-07-01T09:07:56ZengMaterials and Energy Research Center (MERC)Journal of Renewable Energy and Environment2423-55472423-74692019-02-0161212810.30501/jree.2019.9555595555Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) AnalysisVajihe Yousefi0Davod Mohebbi-Kalhori1Abdolreza Samimi2Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, IranDepartment of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, IranDepartment of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, IranThe effect of the thickness of ceramic membrane on the productivity of microbial fuel cells (MFCs) was investigated with respect to the electricity generation and domestic wastewater treatment efficiencies. The thickest ceramic membrane (9 mm) gained the highest coulombic efficiency (27.58±4.2 %), voltage (681.15±33.1 mV), and current and power densities (447.11±21.37 mA/m2, 63.82±10.42 mW/m2) compared to the 6- and 3-mm thick separators. The results of electrochemical impedance spectroscopy (EIS) analysis were investigated to identify the internal resistance constituents by proposing the appropriate equivalent electrical circuit. The Gerischer element was modeled as the coupled reaction, and diffusion in the porous carbon electrodes and the constant phase element was assimilated into the electrical double-layer capacitance. The thickest ceramic (9 mm) was found to have the largest ohmic resistance; however, owing to its superior barrier capability, it provided more anoxic conditions for better accommodation of exoelectrogenic bacteria in the anode chamber. Therefore, lower charge transfer, fewer diffusional impedances, and higher rates of anodic reactions were achieved. Excessive oxygen and substrate crossover through the thinner ceramics (of 6 and 3 mm) resulted in the suppressed development of anaerobic anodic biofilm and the accomplishment of aerobic substrate respiration without electricity generation.https://www.jree.ir/article_95555_d61940b8c84526eefecd723fbfd44490.pdfmicrobial fuel celldomestic wastewaterceramic membranegerischer elementconstant phase element |
| spellingShingle | Vajihe Yousefi Davod Mohebbi-Kalhori Abdolreza Samimi Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis Journal of Renewable Energy and Environment microbial fuel cell domestic wastewater ceramic membrane gerischer element constant phase element |
| title | Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis |
| title_full | Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis |
| title_fullStr | Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis |
| title_full_unstemmed | Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis |
| title_short | Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis |
| title_sort | equivalent electrical circuit modeling of ceramic based microbial fuel cells using the electrochemical impedance spectroscopy eis analysis |
| topic | microbial fuel cell domestic wastewater ceramic membrane gerischer element constant phase element |
| url | https://www.jree.ir/article_95555_d61940b8c84526eefecd723fbfd44490.pdf |
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