Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2017
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| Online Access: | http://hdl.handle.net/1721.1/111724 |
| _version_ | 1826188038893469696 |
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| author | Li, Yuanda |
| author2 | Betar M. Gallant. |
| author_facet | Betar M. Gallant. Li, Yuanda |
| author_sort | Li, Yuanda |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017. |
| first_indexed | 2024-09-23T07:53:39Z |
| format | Thesis |
| id | mit-1721.1/111724 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T07:53:39Z |
| publishDate | 2017 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1117242019-04-09T15:24:28Z Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration Li, Yuanda Betar M. Gallant. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017. Cataloged from PDF version of thesis. Includes bibliographical references (pages 57-60). The demand for technological advancement of greenhouse gas conversion and mitigation strategies is ever increasing. In this thesis, a non-aqueous electrochemical platform with metal lithium (Li) as the anode and carbon as the cathode has been developed to convert the most potent greenhouse gas, sulfur hexafluoride (SF 6), into benign solids Li2S and LiF under room temperature conditions at an electrode - electrolyte interface. Galvanostatic discharge demonstrated that the reaction between Li and SF 6 is capable of delivering modest cell voltages up to - 2.4 V vs. Li/Lie and capacities up to ~3800 mAh/gc. The electrochemical reaction between Li and SF6 in two different battery solvents has been characterized with a suite of solid and liquid phase analyses, which showed the reaction to be an 8 - electron transfer process with high Coulombic efficiency. Rotating disk electrode studies were also employed to demonstrate that the overpotential of this system is intrinsically governed by kinetics. This work demonstrates a non-aqueous system capable of both reducing a fluorinated gas, SF6 under room temperature conditions at an electrode surface, and acting as a primary battery based on halogen ligand chemistry. by Yuanda Li. S.M. 2017-10-04T15:05:34Z 2017-10-04T15:05:34Z 2017 2017 Thesis http://hdl.handle.net/1721.1/111724 1004236835 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 60 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Li, Yuanda Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title | Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title_full | Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title_fullStr | Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title_full_unstemmed | Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title_short | Electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| title_sort | electrochemical conversion of a fluorinated greenhouse gas using a lithium battery configuration |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/111724 |
| work_keys_str_mv | AT liyuanda electrochemicalconversionofafluorinatedgreenhousegasusingalithiumbatteryconfiguration |