Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites
H<sub>2</sub>S gas sensors were fabricated using Ag nanowire/hollow polypyrrole nanotube nanocomposite (Ag NW/hollow PPy NT) film for sensing ppb-level H<sub>2</sub>S gas at room temperature. The morphology, phase composition and crystalline structure of Ag NW/hollow PPy NT n...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/10/8/305 |
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| author | Pi-Guey Su Xing-Chen Chai |
| author_facet | Pi-Guey Su Xing-Chen Chai |
| author_sort | Pi-Guey Su |
| collection | DOAJ |
| description | H<sub>2</sub>S gas sensors were fabricated using Ag nanowire/hollow polypyrrole nanotube nanocomposite (Ag NW/hollow PPy NT) film for sensing ppb-level H<sub>2</sub>S gas at room temperature. The morphology, phase composition and crystalline structure of Ag NW/hollow PPy NT nanocomposites were analyzed via scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffractometry (XRD) and Fourier-transform infrared spectroscopy (FTIR). TEM and SEM images revealed that Ag NWs were well dispersed in the hollow PPy NT matrix. IR results showed no interaction between Ag NWs and hollow PPy NTs in the Ag NW/hollow PPy NT nanocomposites. The effect of the amount of added Ag NWs on the response of the Ag NW/hollow PPy NT nanocomposites to the ppb-level H<sub>2</sub>S gas was investigated. Comparative gas-sensing results revealed that the introduction of Ag NWs onto hollow PPy NTs was effective in promoting the sensor response to H<sub>2</sub>S gas. More importantly, the Ag NW/hollow PPy NT nanocomposite had a strong response to ppb-level H<sub>2</sub>S gas at room temperature. |
| first_indexed | 2024-03-09T04:35:49Z |
| format | Article |
| id | doaj.art-5af73284937940418eb08ed66c6c204d |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-09T04:35:49Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-5af73284937940418eb08ed66c6c204d2023-12-03T13:27:42ZengMDPI AGChemosensors2227-90402022-08-0110830510.3390/chemosensors10080305Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube NanocompositesPi-Guey Su0Xing-Chen Chai1Department of Chemistry, Chinese Culture University, Taipei 111, TaiwanDepartment of Chemistry, Chinese Culture University, Taipei 111, TaiwanH<sub>2</sub>S gas sensors were fabricated using Ag nanowire/hollow polypyrrole nanotube nanocomposite (Ag NW/hollow PPy NT) film for sensing ppb-level H<sub>2</sub>S gas at room temperature. The morphology, phase composition and crystalline structure of Ag NW/hollow PPy NT nanocomposites were analyzed via scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffractometry (XRD) and Fourier-transform infrared spectroscopy (FTIR). TEM and SEM images revealed that Ag NWs were well dispersed in the hollow PPy NT matrix. IR results showed no interaction between Ag NWs and hollow PPy NTs in the Ag NW/hollow PPy NT nanocomposites. The effect of the amount of added Ag NWs on the response of the Ag NW/hollow PPy NT nanocomposites to the ppb-level H<sub>2</sub>S gas was investigated. Comparative gas-sensing results revealed that the introduction of Ag NWs onto hollow PPy NTs was effective in promoting the sensor response to H<sub>2</sub>S gas. More importantly, the Ag NW/hollow PPy NT nanocomposite had a strong response to ppb-level H<sub>2</sub>S gas at room temperature.https://www.mdpi.com/2227-9040/10/8/305Ag NWshollow PPy NTsnanocompositeH<sub>2</sub>S gas sensorroom temperature |
| spellingShingle | Pi-Guey Su Xing-Chen Chai Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites Chemosensors Ag NWs hollow PPy NTs nanocomposite H<sub>2</sub>S gas sensor room temperature |
| title | Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites |
| title_full | Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites |
| title_fullStr | Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites |
| title_full_unstemmed | Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites |
| title_short | Room-Temperature ppb-Level H<sub>2</sub>S Gas Sensors Based on Ag Nanowire/Hollow PPy Nanotube Nanocomposites |
| title_sort | room temperature ppb level h sub 2 sub s gas sensors based on ag nanowire hollow ppy nanotube nanocomposites |
| topic | Ag NWs hollow PPy NTs nanocomposite H<sub>2</sub>S gas sensor room temperature |
| url | https://www.mdpi.com/2227-9040/10/8/305 |
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