Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S
Polyaniline (PANI) is currently one of the most extensively studied conductive polymers in the field of flexible gas sensors. However, sensors based on pure PANI generally suffer from problems such as low sensitivity and poor stability. To address these issues, in this work, a room-temperature hydro...
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| Format: | Article |
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MDPI AG
2025-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/9/2640 |
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| author | Dongxiang Zhang Yingmin Liu Yang Wang Zhi Li Dongkun Xiao Tianhong Zhou Mojie Sun |
| author_facet | Dongxiang Zhang Yingmin Liu Yang Wang Zhi Li Dongkun Xiao Tianhong Zhou Mojie Sun |
| author_sort | Dongxiang Zhang |
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| description | Polyaniline (PANI) is currently one of the most extensively studied conductive polymers in the field of flexible gas sensors. However, sensors based on pure PANI generally suffer from problems such as low sensitivity and poor stability. To address these issues, in this work, a room-temperature hydrogen sulfide gas sensor of polyaniline/tungsten oxide/copper oxide (PANI/WO<sub>3</sub>/CuO) was synthesized using in situ polymerization technology. This gas sensor displays a response value of 31.3% to 1 ppm hydrogen sulfide at room temperature, with a response/recovery time of 353/4958 s and a detection limit of 100 ppb. Such an excellent performance is attributed to the high surface area and large adsorption capacity of the ternary composite, as well as the multi-phase interface synergistic effect. |
| format | Article |
| id | doaj-art-2cbece4178bb4e3c831b275c7eb3f512 |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-2cbece4178bb4e3c831b275c7eb3f5122025-08-20T03:53:01ZengMDPI AGSensors1424-82202025-04-01259264010.3390/s25092640Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>SDongxiang Zhang0Yingmin Liu1Yang Wang2Zhi Li3Dongkun Xiao4Tianhong Zhou5Mojie Sun6School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaState Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132012, ChinaPolyaniline (PANI) is currently one of the most extensively studied conductive polymers in the field of flexible gas sensors. However, sensors based on pure PANI generally suffer from problems such as low sensitivity and poor stability. To address these issues, in this work, a room-temperature hydrogen sulfide gas sensor of polyaniline/tungsten oxide/copper oxide (PANI/WO<sub>3</sub>/CuO) was synthesized using in situ polymerization technology. This gas sensor displays a response value of 31.3% to 1 ppm hydrogen sulfide at room temperature, with a response/recovery time of 353/4958 s and a detection limit of 100 ppb. Such an excellent performance is attributed to the high surface area and large adsorption capacity of the ternary composite, as well as the multi-phase interface synergistic effect.https://www.mdpi.com/1424-8220/25/9/2640flexible gas sensorPANIH<sub>2</sub>Sternary composite |
| spellingShingle | Dongxiang Zhang Yingmin Liu Yang Wang Zhi Li Dongkun Xiao Tianhong Zhou Mojie Sun Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S Sensors flexible gas sensor PANI H<sub>2</sub>S ternary composite |
| title | Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S |
| title_full | Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S |
| title_fullStr | Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S |
| title_full_unstemmed | Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S |
| title_short | Flexible Gas Sensor Based on PANI/WO<sub>3</sub>/CuO for Room-Temperature Detection of H<sub>2</sub>S |
| title_sort | flexible gas sensor based on pani wo sub 3 sub cuo for room temperature detection of h sub 2 sub s |
| topic | flexible gas sensor PANI H<sub>2</sub>S ternary composite |
| url | https://www.mdpi.com/1424-8220/25/9/2640 |
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