Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells
Microbial fuel cells (MFCs) can generate electricity from organic compounds present in wastewater; however, the resulting small electric power is insufficient for practical applications. This issue occurs because of the high internal resistance of MFCs, which can be addressed by first precisely meas...
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| Format: | Article |
| Language: | English |
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Japan Society on Water Environment
2022-01-01
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| Series: | Journal of Water and Environment Technology |
| Subjects: | |
| Online Access: |
https://www.jstage.jst.go.jp/article/jwet/20/1/20_21-087/_pdf
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| _version_ | 1818507995728838656 |
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| author | Aiichiro Fujinaga Saiki Umeda Manabu Heya Hitoshi Ogata Naoyuki Kishimoto |
| author_facet | Aiichiro Fujinaga Saiki Umeda Manabu Heya Hitoshi Ogata Naoyuki Kishimoto |
| author_sort | Aiichiro Fujinaga |
| collection | DOAJ |
| description | Microbial fuel cells (MFCs) can generate electricity from organic compounds present in wastewater; however, the resulting small electric power is insufficient for practical applications. This issue occurs because of the high internal resistance of MFCs, which can be addressed by first precisely measuring these internal resistances. However, a standard method for measuring the internal resistance, which depends on the conditions of the MFCs, does not exist. Therefore, five measurement methods in the open-circuit (OC) mode were evaluated in this study. In addition, the internal resistances in the closed-circuit (CC) mode were measured using a one-resistance method and electrochemical impedance spectroscopy (EIS). The values obtained by the linear sweep intensity of current potentiometry (LSIP) method were different from those measured by the other four methods. This was presumably because LSIP involved forcibly flowing electric current in the MFCs. The one-resistance method yielded similar internal resistances to those of the other methods in the OC mode. In addition, this method was applicable in the CC mode. Therefore, the one-resistance method can be used during discharging and for developing MFCs based on discharging. |
| first_indexed | 2024-12-10T22:25:49Z |
| format | Article |
| id | doaj.art-f5bd4a5866b341919fd4678d9bfdeaf9 |
| institution | Directory Open Access Journal |
| issn | 1348-2165 |
| language | English |
| last_indexed | 2024-12-10T22:25:49Z |
| publishDate | 2022-01-01 |
| publisher | Japan Society on Water Environment |
| record_format | Article |
| series | Journal of Water and Environment Technology |
| spelling | doaj.art-f5bd4a5866b341919fd4678d9bfdeaf92022-12-22T01:31:11ZengJapan Society on Water EnvironmentJournal of Water and Environment Technology1348-21652022-01-0120111010.2965/jwet.21-08710.2965/jwet.21-087Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel CellsAiichiro Fujinaga0Saiki Umeda1Manabu Heya2Hitoshi Ogata3Naoyuki Kishimoto4 Department of Civil Engineering, Faculty of Engineering, Osaka Sangyo University, Daito, Japan Department of Electronics, Information and Communication Engineering, Faculty of Engineering, Osaka Sangyo University, Daito, Japan Department of Electronics, Information and Communication Engineering, Faculty of Engineering, Osaka Sangyo University, Daito, Japan Department of Electronics, Information and Communication Engineering, Faculty of Engineering, Osaka Sangyo University, Daito, Japan Faculty of Advanced Science and Technology, Ryukoku University, Otsu, Japan Microbial fuel cells (MFCs) can generate electricity from organic compounds present in wastewater; however, the resulting small electric power is insufficient for practical applications. This issue occurs because of the high internal resistance of MFCs, which can be addressed by first precisely measuring these internal resistances. However, a standard method for measuring the internal resistance, which depends on the conditions of the MFCs, does not exist. Therefore, five measurement methods in the open-circuit (OC) mode were evaluated in this study. In addition, the internal resistances in the closed-circuit (CC) mode were measured using a one-resistance method and electrochemical impedance spectroscopy (EIS). The values obtained by the linear sweep intensity of current potentiometry (LSIP) method were different from those measured by the other four methods. This was presumably because LSIP involved forcibly flowing electric current in the MFCs. The one-resistance method yielded similar internal resistances to those of the other methods in the OC mode. In addition, this method was applicable in the CC mode. Therefore, the one-resistance method can be used during discharging and for developing MFCs based on discharging. https://www.jstage.jst.go.jp/article/jwet/20/1/20_21-087/_pdf microbial fuel cellsinternal resistancemeasurement methods |
| spellingShingle | Aiichiro Fujinaga Saiki Umeda Manabu Heya Hitoshi Ogata Naoyuki Kishimoto Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells Journal of Water and Environment Technology microbial fuel cells internal resistance measurement methods |
| title | Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells |
| title_full | Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells |
| title_fullStr | Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells |
| title_full_unstemmed | Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells |
| title_short | Evaluation of Methods for Measuring Internal Resistances of Discharging Microbial Fuel Cells |
| title_sort | evaluation of methods for measuring internal resistances of discharging microbial fuel cells |
| topic | microbial fuel cells internal resistance measurement methods |
| url |
https://www.jstage.jst.go.jp/article/jwet/20/1/20_21-087/_pdf
|
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