Electroanalytical determination of trace chloride in room-temperature ionic liquids.
The electroanalytical quantification of chloride in [C4mim][BF4], [C4mim][NTf2], and [C4mim][PF6] ionic liquids has been explored using linear sweep and square wave voltammetry. Cathodic stripping voltammetry at a silver disk electrode is found to be the most sensitive. The methodology is based on f...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1797077162103144448 |
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| author | Villagrán, C Banks, C Hardacre, C Compton, R |
| author_facet | Villagrán, C Banks, C Hardacre, C Compton, R |
| author_sort | Villagrán, C |
| collection | OXFORD |
| description | The electroanalytical quantification of chloride in [C4mim][BF4], [C4mim][NTf2], and [C4mim][PF6] ionic liquids has been explored using linear sweep and square wave voltammetry. Cathodic stripping voltammetry at a silver disk electrode is found to be the most sensitive. The methodology is based on first holding the potential of the electrode at +2.0 V (vs Ag wire), to accumulate silver chloride at the electrode. On applying a cathodic scan, a stripping wave is observed corresponding to the reduction of the silver chloride. This stripping protocol was found to detect ppb levels of chloride in [C4mim][BF4], [C4mim][NTf2], and [C4mim][PF6]. Although other methods for chloride have been reported for [BF4](-)- and [PF6](-)-based ionic liquids, no methods have been reported for [NTf2](-) ionic liquids. |
| first_indexed | 2024-03-07T00:13:55Z |
| format | Journal article |
| id | oxford-uuid:7a2e43be-bdfe-4c77-986e-d07be4cbfdb5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:13:55Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:7a2e43be-bdfe-4c77-986e-d07be4cbfdb52022-03-26T20:42:12ZElectroanalytical determination of trace chloride in room-temperature ionic liquids.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7a2e43be-bdfe-4c77-986e-d07be4cbfdb5EnglishSymplectic Elements at Oxford2004Villagrán, CBanks, CHardacre, CCompton, RThe electroanalytical quantification of chloride in [C4mim][BF4], [C4mim][NTf2], and [C4mim][PF6] ionic liquids has been explored using linear sweep and square wave voltammetry. Cathodic stripping voltammetry at a silver disk electrode is found to be the most sensitive. The methodology is based on first holding the potential of the electrode at +2.0 V (vs Ag wire), to accumulate silver chloride at the electrode. On applying a cathodic scan, a stripping wave is observed corresponding to the reduction of the silver chloride. This stripping protocol was found to detect ppb levels of chloride in [C4mim][BF4], [C4mim][NTf2], and [C4mim][PF6]. Although other methods for chloride have been reported for [BF4](-)- and [PF6](-)-based ionic liquids, no methods have been reported for [NTf2](-) ionic liquids. |
| spellingShingle | Villagrán, C Banks, C Hardacre, C Compton, R Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title | Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title_full | Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title_fullStr | Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title_full_unstemmed | Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title_short | Electroanalytical determination of trace chloride in room-temperature ionic liquids. |
| title_sort | electroanalytical determination of trace chloride in room temperature ionic liquids |
| work_keys_str_mv | AT villagranc electroanalyticaldeterminationoftracechlorideinroomtemperatureionicliquids AT banksc electroanalyticaldeterminationoftracechlorideinroomtemperatureionicliquids AT hardacrec electroanalyticaldeterminationoftracechlorideinroomtemperatureionicliquids AT comptonr electroanalyticaldeterminationoftracechlorideinroomtemperatureionicliquids |