Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents
The sensing behavior of SnO2-based thick film gas sensors in a flow system in the presence of a very low concentration (ppb level) of chemical agent simulants such as acetonitrile, dipropylene glycol methyl ether (DPGME), dimethyl methylphosphonate (DMMP), and dichloromethane (DCM) was investigated....
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2011-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/11/7/6893/ |
| _version_ | 1828351767704764416 |
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| author | Duk Dong Lee Sang Yeon Lee Byung Wook Hwang Dhanusuraman Ragupathy Suk Yong Jung Woo Suk Lee Soo Chool Lee Seong Yeol Kim Jae Chang Kim |
| author_facet | Duk Dong Lee Sang Yeon Lee Byung Wook Hwang Dhanusuraman Ragupathy Suk Yong Jung Woo Suk Lee Soo Chool Lee Seong Yeol Kim Jae Chang Kim |
| author_sort | Duk Dong Lee |
| collection | DOAJ |
| description | The sensing behavior of SnO2-based thick film gas sensors in a flow system in the presence of a very low concentration (ppb level) of chemical agent simulants such as acetonitrile, dipropylene glycol methyl ether (DPGME), dimethyl methylphosphonate (DMMP), and dichloromethane (DCM) was investigated. Commercial SnO2 [SnO2(C)] and nano-SnO2 prepared by the precipitation method [SnO2(P)] were used to prepare the SnO2 sensor in this study. In the case of DCM and acetonitrile, the SnO2(P) sensor showed higher sensor response as compared with the SnO2(C) sensors. In the case of DMMP and DPGME, however, the SnO2(C) sensor showed higher responses than those of the SnO2(P) sensors. In particular, the response of the SnO2(P) sensor increased as the calcination temperature increased from 400 °C to 800 °C. These results can be explained by the fact that the response of the SnO2-based gas sensor depends on the textural properties of tin oxide and the molecular size of the chemical agent simulant in the detection of the simulant gases (0.1–0.5 ppm). |
| first_indexed | 2024-04-14T01:44:03Z |
| format | Article |
| id | doaj.art-6d00ae539836491297c574e88c83db80 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:44:03Z |
| publishDate | 2011-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6d00ae539836491297c574e88c83db802022-12-22T02:19:36ZengMDPI AGSensors1424-82202011-07-011176893690410.3390/s110706893Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare AgentsDuk Dong LeeSang Yeon LeeByung Wook HwangDhanusuraman RagupathySuk Yong JungWoo Suk LeeSoo Chool LeeSeong Yeol KimJae Chang KimThe sensing behavior of SnO2-based thick film gas sensors in a flow system in the presence of a very low concentration (ppb level) of chemical agent simulants such as acetonitrile, dipropylene glycol methyl ether (DPGME), dimethyl methylphosphonate (DMMP), and dichloromethane (DCM) was investigated. Commercial SnO2 [SnO2(C)] and nano-SnO2 prepared by the precipitation method [SnO2(P)] were used to prepare the SnO2 sensor in this study. In the case of DCM and acetonitrile, the SnO2(P) sensor showed higher sensor response as compared with the SnO2(C) sensors. In the case of DMMP and DPGME, however, the SnO2(C) sensor showed higher responses than those of the SnO2(P) sensors. In particular, the response of the SnO2(P) sensor increased as the calcination temperature increased from 400 °C to 800 °C. These results can be explained by the fact that the response of the SnO2-based gas sensor depends on the textural properties of tin oxide and the molecular size of the chemical agent simulant in the detection of the simulant gases (0.1–0.5 ppm).http://www.mdpi.com/1424-8220/11/7/6893/sensorSnO2sensor responsechemical agent simulant |
| spellingShingle | Duk Dong Lee Sang Yeon Lee Byung Wook Hwang Dhanusuraman Ragupathy Suk Yong Jung Woo Suk Lee Soo Chool Lee Seong Yeol Kim Jae Chang Kim Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents Sensors sensor SnO2 sensor response chemical agent simulant |
| title | Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents |
| title_full | Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents |
| title_fullStr | Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents |
| title_full_unstemmed | Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents |
| title_short | Effects of Textural Properties on the Response of a SnO2-Based Gas Sensor for the Detection of Chemical Warfare Agents |
| title_sort | effects of textural properties on the response of a sno2 based gas sensor for the detection of chemical warfare agents |
| topic | sensor SnO2 sensor response chemical agent simulant |
| url | http://www.mdpi.com/1424-8220/11/7/6893/ |
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