Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids
The electrochemical behaviour of methylamine gas in several room temperature ionic liquids (RTILs), [C2mim][NTf2], [C4mim][NTf2], [C6mim][FAP], [C4mpyrr][NTf2], [C4mim][BF4], and [C4mim][PF6] has been investigated on a Pt microelectrode using cyclic voltammetry. A broad oxidation wave at approximate...
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| Format: | Journal Article |
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American Chemical Society
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/42282 |
| _version_ | 1848756376869797888 |
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| author | Murugappan, Krishnan Kang, Colin Silvester, Debbie |
| author_facet | Murugappan, Krishnan Kang, Colin Silvester, Debbie |
| author_sort | Murugappan, Krishnan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The electrochemical behaviour of methylamine gas in several room temperature ionic liquids (RTILs), [C2mim][NTf2], [C4mim][NTf2], [C6mim][FAP], [C4mpyrr][NTf2], [C4mim][BF4], and [C4mim][PF6] has been investigated on a Pt microelectrode using cyclic voltammetry. A broad oxidation wave at approximately 3 V, two reduction peaks and another oxidation peak was observed. A complicated mechanism is predicted based on the voltammetry obtained, with ammonia gas as a likely by-product. The currents obtained suggest that methylamine has a high solubility in RTILs, which is important for gas sensing applications. The analytical utility of methylamine was then studied in [C4mpyrr][NTf2] and [C2mim][NTf2]. A linear calibration graph with an R2 value of 0.99 and limits of detection of 33 and 34 ppm were obtained respectively, suggesting that RTILs are favourable non-volatile solvents for the electrochemical detection of highly toxic methylamine gas. |
| first_indexed | 2025-11-14T09:11:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-42282 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:11:13Z |
| publishDate | 2014 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-422822019-02-19T05:35:17Z Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids Murugappan, Krishnan Kang, Colin Silvester, Debbie Room temperature ionic liquids Gas sensing Reaction mechanism Cyclic Voltammetry Methylamine oxidation Electrochemistry The electrochemical behaviour of methylamine gas in several room temperature ionic liquids (RTILs), [C2mim][NTf2], [C4mim][NTf2], [C6mim][FAP], [C4mpyrr][NTf2], [C4mim][BF4], and [C4mim][PF6] has been investigated on a Pt microelectrode using cyclic voltammetry. A broad oxidation wave at approximately 3 V, two reduction peaks and another oxidation peak was observed. A complicated mechanism is predicted based on the voltammetry obtained, with ammonia gas as a likely by-product. The currents obtained suggest that methylamine has a high solubility in RTILs, which is important for gas sensing applications. The analytical utility of methylamine was then studied in [C4mpyrr][NTf2] and [C2mim][NTf2]. A linear calibration graph with an R2 value of 0.99 and limits of detection of 33 and 34 ppm were obtained respectively, suggesting that RTILs are favourable non-volatile solvents for the electrochemical detection of highly toxic methylamine gas. 2014 Journal Article http://hdl.handle.net/20.500.11937/42282 10.1021/jp5061045 American Chemical Society fulltext |
| spellingShingle | Room temperature ionic liquids Gas sensing Reaction mechanism Cyclic Voltammetry Methylamine oxidation Electrochemistry Murugappan, Krishnan Kang, Colin Silvester, Debbie Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title | Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title_full | Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title_fullStr | Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title_full_unstemmed | Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title_short | Electrochemical Oxidation and Sensing of Methylamine Gas in Room Temperature Ionic Liquids |
| title_sort | electrochemical oxidation and sensing of methylamine gas in room temperature ionic liquids |
| topic | Room temperature ionic liquids Gas sensing Reaction mechanism Cyclic Voltammetry Methylamine oxidation Electrochemistry |
| url | http://hdl.handle.net/20.500.11937/42282 |