| DOI | Resolve DOI: https://doi.org/10.1016/j.biteb.2019.100302 |
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| Author | Search for: Gomez vidales, Abraham1ORCID identifier: https://orcid.org/0000-0002-8529-6909; Search for: Omanovic, Sasha; Search for: Tartakovsky, Boris1ORCID identifier: https://orcid.org/0000-0002-6588-3276 |
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| Affiliation | - National Research Council Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | bioelectrosynthesis; energy storage; capacitance; CO2 sequestration; membraneless |
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| Abstract | This study demonstrates a novel approach for combined energy carrier production and energy storage in a Microbial Electrosynthesis System (MES). Continuous production of high purity methane (CH₄) from carbon dioxide (CO₂) was achieved in a 0.65 L carbon felt - filled cathode compartment of a membraneless MES. CH₄ production reached 0.72 L d−¹ at an energy consumption of 26 Wh LCH4−¹. Owing to the membraneless design of the MES, pH control of the electrode compartments was not required, with the cathode compartment pH remaining below 8.5. Electrochemical characterization showed a progressive increase of the MES internal capacitance from 2.1 F to 3.2 F. Bioelectrochemical conversion of CO₂ to CH₄ can be used for long-term energy storage (power-to-gas conversion) combined with CO₂ sequestration, while the internal capacitance of electroactive biofilms can be exploited to develop bioelectrochemical supercapacitors for fast energy return to the electrical grid. |
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| Publication date | 2019-08-08 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | [identifier] |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 24d03aa5-8e2a-487b-b3c1-e691b714d864 |
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| Record created | 2021-02-16 |
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| Record modified | 2021-02-16 |
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