Effects of Polymer Matrices and Carbon Nanotubes on the Generation of Electric Energy in a Microbial Fuel Cell
The anode of a microbial fuel cell (MFC) was formed on a graphite electrode and immobilized Gluconobacter oxydans VKM-1280 bacterial cells. Immobilization was performed in chitosan, poly(vinyl alcohol) or N-vinylpyrrolidone-modified poly(vinyl alcohol). Ethanol was used as substrate. The anode was modified using multiwalled carbon nanotubes. The aim of the modification was to create a conductive network between cell lipid membranes, containing exposed pyrroloquinoline quinone (PQQ)-dependent alcoholdehydrogenases, and the electrode to facilitate electron transfer in the system. The bioelectrochemical characteristics of modified anodes at various cell/polymer ratios were assessed via current density, power density, polarization curves and impedance spectres. Microbial fuel cells based on chitosan at a matrix/cell volume ratio of 5:1 produced maximal power characteristics of the system (8.3 μW/cm²) at a minimal resistance (1111 Ohm cm²). Modification of the anode by multiwalled carbon nanotubes (MWCNT) led to a slight decrease of internal resistance (down to 1078 Ohm cm²) and to an increase of generated power density up to 10.6 μW/cm². We explored the possibility of accumulating electric energy from an MFC on a 6800-μF capacitor via a boost converter. Generated voltage was increased from 0.3 V up to 3.2 V. Accumulated energy was used to power a Clark-type biosensor and a Bluetooth transmitter with three sensors, a miniature electric motor and a light-emitting diode.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:8 |
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| Enthalten in: |
Membranes - 8(2018), 4 vom: 25. Okt. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Plekhanova, Yulia [VerfasserIn] |
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| Links: |
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| Themen: |
Boost converter accumulation |
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| Anmerkungen: |
Date Revised 05.10.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/membranes8040099 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM290003962 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a The anode of a microbial fuel cell (MFC) was formed on a graphite electrode and immobilized Gluconobacter oxydans VKM-1280 bacterial cells. Immobilization was performed in chitosan, poly(vinyl alcohol) or N-vinylpyrrolidone-modified poly(vinyl alcohol). Ethanol was used as substrate. The anode was modified using multiwalled carbon nanotubes. The aim of the modification was to create a conductive network between cell lipid membranes, containing exposed pyrroloquinoline quinone (PQQ)-dependent alcoholdehydrogenases, and the electrode to facilitate electron transfer in the system. The bioelectrochemical characteristics of modified anodes at various cell/polymer ratios were assessed via current density, power density, polarization curves and impedance spectres. Microbial fuel cells based on chitosan at a matrix/cell volume ratio of 5:1 produced maximal power characteristics of the system (8.3 μW/cm²) at a minimal resistance (1111 Ohm cm²). Modification of the anode by multiwalled carbon nanotubes (MWCNT) led to a slight decrease of internal resistance (down to 1078 Ohm cm²) and to an increase of generated power density up to 10.6 μW/cm². We explored the possibility of accumulating electric energy from an MFC on a 6800-μF capacitor via a boost converter. Generated voltage was increased from 0.3 V up to 3.2 V. Accumulated energy was used to power a Clark-type biosensor and a Bluetooth transmitter with three sensors, a miniature electric motor and a light-emitting diode | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a boost converter accumulation | |
| 650 | 4 | |a immobilization of bacterial cells | |
| 650 | 4 | |a interaction of cell membranes with carbon nanotubes | |
| 650 | 4 | |a microbial fuel cell | |
| 650 | 4 | |a polymer matrix | |
| 700 | 1 | |a Tarasov, Sergei |e verfasserin |4 aut | |
| 700 | 1 | |a Kolesov, Vladimir |e verfasserin |4 aut | |
| 700 | 1 | |a Kuznetsova, Iren |e verfasserin |4 aut | |
| 700 | 1 | |a Signore, Maria |e verfasserin |4 aut | |
| 700 | 1 | |a Quaranta, Fabio |e verfasserin |4 aut | |
| 700 | 1 | |a Reshetilov, Anatoly |e verfasserin |4 aut | |
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