Theoretical Description of Carbon Felt Electrical Properties Affected by Compression
Electro-conductive carbon felt (CF) material is composed by bonding together different lengths of carbon filaments resulting in a porous structure with a significant internal surface that facilitates enhanced electrochemical reactions. Owing to its excellent electrical properties, CF is found in num...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/19/4030 |
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| author | Moshe Averbukh Svetlana Lugovskoy |
| author_facet | Moshe Averbukh Svetlana Lugovskoy |
| author_sort | Moshe Averbukh |
| collection | DOAJ |
| description | Electro-conductive carbon felt (CF) material is composed by bonding together different lengths of carbon filaments resulting in a porous structure with a significant internal surface that facilitates enhanced electrochemical reactions. Owing to its excellent electrical properties, CF is found in numerous electrochemical applications, such as electrodes in redox flow batteries, fuel cells, and electrochemical desalination apparatus. CF electro-conductivity mostly arises from the close contact between the surface of two electrodes and the long carbon fibers located between them. Electrical conductivity can be improved by a moderate pressing of the CF between conducting electrodes. There exist large amounts of experimental data regarding CF electro-conductivity. However, there is a lack of analytical theoretical models explaining the CF electrical characteristics and the effects of compression. Moreover, CF electrodes in electrochemical cells are immersed in different electrolytes that affect the interconnections of fibers and their contacts with electrodes, which in turn influence conductivity. In this paper, we investigated both the role of CF compression, as well as the impact of electrolyte characteristics on electro-conductivity. The article presents results of measurements, mathematical analysis of CF electrical properties, and a theoretical analytical explanation of the CF electrical conductivity which was done by a stochastic description of carbon filaments disposition inside a CF frame. |
| first_indexed | 2024-12-11T16:22:39Z |
| format | Article |
| id | doaj.art-140c8ac61e2b47908f7750de5cdbb553 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T16:22:39Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-140c8ac61e2b47908f7750de5cdbb5532022-12-22T00:58:49ZengMDPI AGApplied Sciences2076-34172019-09-01919403010.3390/app9194030app9194030Theoretical Description of Carbon Felt Electrical Properties Affected by CompressionMoshe Averbukh0Svetlana Lugovskoy1Department of Electric/Electronic Engineering, Ariel University, Kiriat HaMada, Ariel 4070000, IsraelDepartment of Chemical Engineering/Materials, Ariel University, Kiriat HaMada, Ariel 4070000, IsraelElectro-conductive carbon felt (CF) material is composed by bonding together different lengths of carbon filaments resulting in a porous structure with a significant internal surface that facilitates enhanced electrochemical reactions. Owing to its excellent electrical properties, CF is found in numerous electrochemical applications, such as electrodes in redox flow batteries, fuel cells, and electrochemical desalination apparatus. CF electro-conductivity mostly arises from the close contact between the surface of two electrodes and the long carbon fibers located between them. Electrical conductivity can be improved by a moderate pressing of the CF between conducting electrodes. There exist large amounts of experimental data regarding CF electro-conductivity. However, there is a lack of analytical theoretical models explaining the CF electrical characteristics and the effects of compression. Moreover, CF electrodes in electrochemical cells are immersed in different electrolytes that affect the interconnections of fibers and their contacts with electrodes, which in turn influence conductivity. In this paper, we investigated both the role of CF compression, as well as the impact of electrolyte characteristics on electro-conductivity. The article presents results of measurements, mathematical analysis of CF electrical properties, and a theoretical analytical explanation of the CF electrical conductivity which was done by a stochastic description of carbon filaments disposition inside a CF frame.https://www.mdpi.com/2076-3417/9/19/4030carbon feltelectrical conductivitytheoretical model |
| spellingShingle | Moshe Averbukh Svetlana Lugovskoy Theoretical Description of Carbon Felt Electrical Properties Affected by Compression Applied Sciences carbon felt electrical conductivity theoretical model |
| title | Theoretical Description of Carbon Felt Electrical Properties Affected by Compression |
| title_full | Theoretical Description of Carbon Felt Electrical Properties Affected by Compression |
| title_fullStr | Theoretical Description of Carbon Felt Electrical Properties Affected by Compression |
| title_full_unstemmed | Theoretical Description of Carbon Felt Electrical Properties Affected by Compression |
| title_short | Theoretical Description of Carbon Felt Electrical Properties Affected by Compression |
| title_sort | theoretical description of carbon felt electrical properties affected by compression |
| topic | carbon felt electrical conductivity theoretical model |
| url | https://www.mdpi.com/2076-3417/9/19/4030 |
| work_keys_str_mv | AT mosheaverbukh theoreticaldescriptionofcarbonfeltelectricalpropertiesaffectedbycompression AT svetlanalugovskoy theoreticaldescriptionofcarbonfeltelectricalpropertiesaffectedbycompression |