{"title":"用于H2S气体传感器的Ag/WO3/rGO纳米复合材料的紫外气敏性能","authors":"Yanghai Gui*, Jintao Wu, Kuan Tian, Huishi Guo, Xiaoyun Qin, Xiaomei Qin, Xiang Guo*, Canxiang Fang* and Peng Liu, ","doi":"10.1021/acsaelm.3c00349","DOIUrl":null,"url":null,"abstract":"<p >The attention toward cost-effective and high-performance H<sub>2</sub>S sensors is increasing due to the growing need for physical health and environmental monitoring. In this paper, Ag/WO<sub>3</sub>/reduced graphene oxide (rGO) nanocomposites were synthesized by using a microwave-assisted gas–liquid interfacial method. Nanomaterials with different Ag doping contents were successfully prepared with AgNO<sub>3</sub> as an additive. The Ag/WO<sub>3</sub>/rGO sensors exhibit remarkable selectivity toward H<sub>2</sub>S, and the gas sensing performances of Ag-doped WO<sub>3</sub>/rGO gas sensors are significantly better than those of WO<sub>3</sub>/rGO. At 150 °C, the response value of the 10 wt % Ag/WO<sub>3</sub>/rGO gas sensor to 100 ppm H<sub>2</sub>S is 204.5, which is 7 times higher than that of WO<sub>3</sub>/rGO, and the response/recovery time of the sensor is 9/49 s, respectively. Additionally, the gas sensing performance of the sensor is further enhanced under ultraviolet (UV) irradiation. The response value is enhanced to 685.8, which is 3 times higher than that without UV irradiation, and the response/recovery time is reduced to 8/38 s, respectively. The sensing mechanism is also discussed. This work offers a potential application for H<sub>2</sub>S detection in environmental monitoring and smart healthcare.</p>","PeriodicalId":3,"journal":{"name":"ACS Applied Electronic Materials","volume":"5 7","pages":"3625–3633"},"PeriodicalIF":4.3000,"publicationDate":"2023-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Ultraviolet-Induced Gas Sensing Performance of Ag/WO3/rGO Nanocomposites for H2S Gas Sensors\",\"authors\":\"Yanghai Gui*, Jintao Wu, Kuan Tian, Huishi Guo, Xiaoyun Qin, Xiaomei Qin, Xiang Guo*, Canxiang Fang* and Peng Liu, \",\"doi\":\"10.1021/acsaelm.3c00349\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The attention toward cost-effective and high-performance H<sub>2</sub>S sensors is increasing due to the growing need for physical health and environmental monitoring. In this paper, Ag/WO<sub>3</sub>/reduced graphene oxide (rGO) nanocomposites were synthesized by using a microwave-assisted gas–liquid interfacial method. Nanomaterials with different Ag doping contents were successfully prepared with AgNO<sub>3</sub> as an additive. The Ag/WO<sub>3</sub>/rGO sensors exhibit remarkable selectivity toward H<sub>2</sub>S, and the gas sensing performances of Ag-doped WO<sub>3</sub>/rGO gas sensors are significantly better than those of WO<sub>3</sub>/rGO. At 150 °C, the response value of the 10 wt % Ag/WO<sub>3</sub>/rGO gas sensor to 100 ppm H<sub>2</sub>S is 204.5, which is 7 times higher than that of WO<sub>3</sub>/rGO, and the response/recovery time of the sensor is 9/49 s, respectively. Additionally, the gas sensing performance of the sensor is further enhanced under ultraviolet (UV) irradiation. The response value is enhanced to 685.8, which is 3 times higher than that without UV irradiation, and the response/recovery time is reduced to 8/38 s, respectively. The sensing mechanism is also discussed. This work offers a potential application for H<sub>2</sub>S detection in environmental monitoring and smart healthcare.</p>\",\"PeriodicalId\":3,\"journal\":{\"name\":\"ACS Applied Electronic Materials\",\"volume\":\"5 7\",\"pages\":\"3625–3633\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2023-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Electronic Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsaelm.3c00349\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaelm.3c00349","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Ultraviolet-Induced Gas Sensing Performance of Ag/WO3/rGO Nanocomposites for H2S Gas Sensors
The attention toward cost-effective and high-performance H2S sensors is increasing due to the growing need for physical health and environmental monitoring. In this paper, Ag/WO3/reduced graphene oxide (rGO) nanocomposites were synthesized by using a microwave-assisted gas–liquid interfacial method. Nanomaterials with different Ag doping contents were successfully prepared with AgNO3 as an additive. The Ag/WO3/rGO sensors exhibit remarkable selectivity toward H2S, and the gas sensing performances of Ag-doped WO3/rGO gas sensors are significantly better than those of WO3/rGO. At 150 °C, the response value of the 10 wt % Ag/WO3/rGO gas sensor to 100 ppm H2S is 204.5, which is 7 times higher than that of WO3/rGO, and the response/recovery time of the sensor is 9/49 s, respectively. Additionally, the gas sensing performance of the sensor is further enhanced under ultraviolet (UV) irradiation. The response value is enhanced to 685.8, which is 3 times higher than that without UV irradiation, and the response/recovery time is reduced to 8/38 s, respectively. The sensing mechanism is also discussed. This work offers a potential application for H2S detection in environmental monitoring and smart healthcare.
期刊介绍：
ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric.
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