New innovations in ionic liquid–based miniaturised amperometric gas sensors
© 2019 Elsevier B.V. Gas detection is an essential part of everyday life; for some applications, using sensors for toxic and hazardous gases can literally mean the difference between life and death. In this minireview, recent progress in amperometric gas sensing using miniaturised electrodes and...
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER
2019
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| Online Access: | http://purl.org/au-research/grants/arc/FT170100315 http://hdl.handle.net/20.500.11937/79837 |
| _version_ | 1848764114573197312 |
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| author | Silvester-Dean, Debbie |
| author_facet | Silvester-Dean, Debbie |
| author_sort | Silvester-Dean, Debbie |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Elsevier B.V.
Gas detection is an essential part of everyday life; for some applications, using sensors for toxic and hazardous gases can literally mean the difference between life and death. In this minireview, recent progress in amperometric gas sensing using miniaturised electrodes and devices is described. The focus is on the use of nonvolatile room-temperature ionic liquids (RTILs) as electrolytes, which possess inherent advantages such as wide electrochemical windows, high thermal and chemical stability, intrinsic conductivity and good solvating properties. Various different gases, electrodes and RTILs have been investigated in the strive towards new materials for improved gas sensors. The most recent developments using porous membrane electrodes, planar devices (e.g. screen-printed, thin-film, microarray and interdigitated electrodes) and the modification of these surfaces for improved sensitivity are described. RTILs have great potential to be used as electrolytes in amperometric gas sensors, with improved lifespan of the sensor in hot/dry environments and allowing miniaturisation of devices. However, it is clear that more understanding of their long-term operation and utility in real environments (e.g. background air, varying temperatures and humidity levels) is needed before their realisation in successful commercial devices. |
| first_indexed | 2025-11-14T11:14:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-79837 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:14:13Z |
| publishDate | 2019 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-798372021-03-17T01:28:46Z New innovations in ionic liquid–based miniaturised amperometric gas sensors Silvester-Dean, Debbie Science & Technology Physical Sciences Technology Chemistry, Physical Electrochemistry Materials Science, Multidisciplinary Chemistry Materials Science Gas sensing Amperometric Ionic liquids Miniaturised devices Voltammetry Chronoamperometry Clark cell ELECTROCHEMICAL DETECTION MICROELECTRODE ARRAY OXYGEN ELECTRODES AMMONIA ELECTROLYTES OXIDATION HYDROGEN WATER © 2019 Elsevier B.V. Gas detection is an essential part of everyday life; for some applications, using sensors for toxic and hazardous gases can literally mean the difference between life and death. In this minireview, recent progress in amperometric gas sensing using miniaturised electrodes and devices is described. The focus is on the use of nonvolatile room-temperature ionic liquids (RTILs) as electrolytes, which possess inherent advantages such as wide electrochemical windows, high thermal and chemical stability, intrinsic conductivity and good solvating properties. Various different gases, electrodes and RTILs have been investigated in the strive towards new materials for improved gas sensors. The most recent developments using porous membrane electrodes, planar devices (e.g. screen-printed, thin-film, microarray and interdigitated electrodes) and the modification of these surfaces for improved sensitivity are described. RTILs have great potential to be used as electrolytes in amperometric gas sensors, with improved lifespan of the sensor in hot/dry environments and allowing miniaturisation of devices. However, it is clear that more understanding of their long-term operation and utility in real environments (e.g. background air, varying temperatures and humidity levels) is needed before their realisation in successful commercial devices. 2019 Journal Article http://hdl.handle.net/20.500.11937/79837 10.1016/j.coelec.2019.03.001 English http://purl.org/au-research/grants/arc/FT170100315 http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER fulltext |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Physical Electrochemistry Materials Science, Multidisciplinary Chemistry Materials Science Gas sensing Amperometric Ionic liquids Miniaturised devices Voltammetry Chronoamperometry Clark cell ELECTROCHEMICAL DETECTION MICROELECTRODE ARRAY OXYGEN ELECTRODES AMMONIA ELECTROLYTES OXIDATION HYDROGEN WATER Silvester-Dean, Debbie New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title | New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title_full | New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title_fullStr | New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title_full_unstemmed | New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title_short | New innovations in ionic liquid–based miniaturised amperometric gas sensors |
| title_sort | new innovations in ionic liquid–based miniaturised amperometric gas sensors |
| topic | Science & Technology Physical Sciences Technology Chemistry, Physical Electrochemistry Materials Science, Multidisciplinary Chemistry Materials Science Gas sensing Amperometric Ionic liquids Miniaturised devices Voltammetry Chronoamperometry Clark cell ELECTROCHEMICAL DETECTION MICROELECTRODE ARRAY OXYGEN ELECTRODES AMMONIA ELECTROLYTES OXIDATION HYDROGEN WATER |
| url | http://purl.org/au-research/grants/arc/FT170100315 http://hdl.handle.net/20.500.11937/79837 |