An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas
We report on a simple electrochemical system able to capture gaseous carbon dioxide from a gas mixture and convert it into syngas. The capture/release module is implemented via regeneration of NaOH and acidification of NaHCO<sub>3</sub> inside a four-chamber electrochemical flow cell emp...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/23/7869 |
| _version_ | 1797507828531855360 |
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| author | Alessio Mezza Angelo Pettigiani Nicolò B. D. Monti Sergio Bocchini M. Amin Farkhondehfal Juqin Zeng Angelica Chiodoni Candido F. Pirri Adriano Sacco |
| author_facet | Alessio Mezza Angelo Pettigiani Nicolò B. D. Monti Sergio Bocchini M. Amin Farkhondehfal Juqin Zeng Angelica Chiodoni Candido F. Pirri Adriano Sacco |
| author_sort | Alessio Mezza |
| collection | DOAJ |
| description | We report on a simple electrochemical system able to capture gaseous carbon dioxide from a gas mixture and convert it into syngas. The capture/release module is implemented via regeneration of NaOH and acidification of NaHCO<sub>3</sub> inside a four-chamber electrochemical flow cell employing Pt foils as catalysts, while the conversion is carried out by a coupled reactor that performs electrochemical reduction of carbon dioxide using ZnO as a catalyst and KHCO<sub>3</sub> as an electrolyte. The capture module is optimized such that, powered by a current density of 100 mA/cm<sup>2</sup>, from a mixture of the CO<sub>2</sub>–N<sub>2</sub> gas stream, a pure and stable CO<sub>2</sub> outlet flow of 4–5 mL/min is obtained. The conversion module is able to convert the carbon dioxide into a mixture of gaseous CO and H<sub>2</sub> (syngas) with a selectivity for the carbon monoxide of 56%. This represents the first all-electrochemical system for carbon dioxide capture and conversion. |
| first_indexed | 2024-03-10T04:54:58Z |
| format | Article |
| id | doaj.art-13e357736271450db9160c9c5e3d05aa |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T04:54:58Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-13e357736271450db9160c9c5e3d05aa2023-11-23T02:19:02ZengMDPI AGEnergies1996-10732021-11-011423786910.3390/en14237869An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to SyngasAlessio Mezza0Angelo Pettigiani1Nicolò B. D. Monti2Sergio Bocchini3M. Amin Farkhondehfal4Juqin Zeng5Angelica Chiodoni6Candido F. Pirri7Adriano Sacco8Center for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyCenter for Sustainable Future Technologies @Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, ItalyWe report on a simple electrochemical system able to capture gaseous carbon dioxide from a gas mixture and convert it into syngas. The capture/release module is implemented via regeneration of NaOH and acidification of NaHCO<sub>3</sub> inside a four-chamber electrochemical flow cell employing Pt foils as catalysts, while the conversion is carried out by a coupled reactor that performs electrochemical reduction of carbon dioxide using ZnO as a catalyst and KHCO<sub>3</sub> as an electrolyte. The capture module is optimized such that, powered by a current density of 100 mA/cm<sup>2</sup>, from a mixture of the CO<sub>2</sub>–N<sub>2</sub> gas stream, a pure and stable CO<sub>2</sub> outlet flow of 4–5 mL/min is obtained. The conversion module is able to convert the carbon dioxide into a mixture of gaseous CO and H<sub>2</sub> (syngas) with a selectivity for the carbon monoxide of 56%. This represents the first all-electrochemical system for carbon dioxide capture and conversion.https://www.mdpi.com/1996-1073/14/23/7869CO<sub>2</sub> captureCO<sub>2</sub> conversioncarbon capture and utilizationelectrochemical capturesyngaselectrodialysis |
| spellingShingle | Alessio Mezza Angelo Pettigiani Nicolò B. D. Monti Sergio Bocchini M. Amin Farkhondehfal Juqin Zeng Angelica Chiodoni Candido F. Pirri Adriano Sacco An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas Energies CO<sub>2</sub> capture CO<sub>2</sub> conversion carbon capture and utilization electrochemical capture syngas electrodialysis |
| title | An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas |
| title_full | An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas |
| title_fullStr | An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas |
| title_full_unstemmed | An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas |
| title_short | An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas |
| title_sort | electrochemical platform for the carbon dioxide capture and conversion to syngas |
| topic | CO<sub>2</sub> capture CO<sub>2</sub> conversion carbon capture and utilization electrochemical capture syngas electrodialysis |
| url | https://www.mdpi.com/1996-1073/14/23/7869 |
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