Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process
© The Royal Society of Chemistry 2020. A thorough experimental investigation of a bench-scale apparatus of the proton concentration process with two symmetrical MnO2electrodes is presented, with the aim of continuous desorption of CO2from a K2CO3solution. The electrodes were fabricated through catho...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry (RSC)
2021
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| Online Access: | https://hdl.handle.net/1721.1/133084 |
| _version_ | 1826206380708593664 |
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| author | Rahimi, Mohammad Catalini, Giulia Puccini, Monica Hatton, T Alan |
| author_facet | Rahimi, Mohammad Catalini, Giulia Puccini, Monica Hatton, T Alan |
| author_sort | Rahimi, Mohammad |
| collection | MIT |
| description | © The Royal Society of Chemistry 2020. A thorough experimental investigation of a bench-scale apparatus of the proton concentration process with two symmetrical MnO2electrodes is presented, with the aim of continuous desorption of CO2from a K2CO3solution. The electrodes were fabricated through cathodic deposition, and their chemical states, morphology, and microstructural architecture were characterized with X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Successful formation of MnO2film was confirmed by XPS analysis, and the SEM images showed a uniform distribution of the film across the carbon substrate surface and along the strand, with an average thickness of ~500 nm, thus making proton ion diffusion possible. Continuous and efficient desorption of CO2from a K2CO3solution was obtained when electrodeposited MnO2electrodes were used in a flow-based proton concentration process. The amount of CO2desorbed per area of the electrode was 12-fold higher than that of a similar system. The electrochemical nature of the proton concentration process offers substantial practical advantages for the future, especially if electricity can be sustainably produced from renewable sources. |
| first_indexed | 2024-09-23T13:28:57Z |
| format | Article |
| id | mit-1721.1/133084 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:28:57Z |
| publishDate | 2021 |
| publisher | Royal Society of Chemistry (RSC) |
| record_format | dspace |
| spelling | mit-1721.1/1330842021-10-27T20:25:26Z Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process Rahimi, Mohammad Catalini, Giulia Puccini, Monica Hatton, T Alan © The Royal Society of Chemistry 2020. A thorough experimental investigation of a bench-scale apparatus of the proton concentration process with two symmetrical MnO2electrodes is presented, with the aim of continuous desorption of CO2from a K2CO3solution. The electrodes were fabricated through cathodic deposition, and their chemical states, morphology, and microstructural architecture were characterized with X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Successful formation of MnO2film was confirmed by XPS analysis, and the SEM images showed a uniform distribution of the film across the carbon substrate surface and along the strand, with an average thickness of ~500 nm, thus making proton ion diffusion possible. Continuous and efficient desorption of CO2from a K2CO3solution was obtained when electrodeposited MnO2electrodes were used in a flow-based proton concentration process. The amount of CO2desorbed per area of the electrode was 12-fold higher than that of a similar system. The electrochemical nature of the proton concentration process offers substantial practical advantages for the future, especially if electricity can be sustainably produced from renewable sources. 2021-10-25T15:35:20Z 2021-10-25T15:35:20Z 2020 2021-06-10T18:08:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133084 Rahimi, Mohammad, Catalini, Giulia, Puccini, Monica and Hatton, T Alan. 2020. "Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process." RSC Advances, 10 (29). en 10.1039/D0RA02450C RSC Advances Creative Commons Attribution Noncommercial 3.0 unported license https://creativecommons.org/licenses/by-nc/3.0/ application/pdf Royal Society of Chemistry (RSC) Royal Society of Chemistry (RSC) |
| spellingShingle | Rahimi, Mohammad Catalini, Giulia Puccini, Monica Hatton, T Alan Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title | Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title_full | Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title_fullStr | Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title_full_unstemmed | Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title_short | Bench-scale demonstration of CO 2 capture with an electrochemically driven proton concentration process |
| title_sort | bench scale demonstration of co 2 capture with an electrochemically driven proton concentration process |
| url | https://hdl.handle.net/1721.1/133084 |
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