{"title":"Pt/ZnO 纳米棒上的 Pt0 物种对三乙胺传感检测的催化作用","authors":"Li-Juan Yue , Su-Mei Shen , Wen-Jie Zhang , Fei-Long Gong, Xuan-Yu Yang, Yong-Hui Zhang","doi":"10.1016/j.materresbull.2024.113156","DOIUrl":null,"url":null,"abstract":"<div><div>The noble metal Pt modified ZnO nanomaterials are widely used to improve their gas sensing performance. However, the relationship between the catalytic effect of Pt<sup>x+</sup> species on the oxygen vacancies formation and gas-sensing performance is still unclear. Herein, the Pt/ZnO nanorods are successfully synthesized by using hydrothermal method, and the content of Pt<sup>0</sup> species are finely tuned through treating in different atmospheres. Notably, Pt modified ZnO calcined under Ar/H<sub>2</sub> (Pt/ZnO-3) exhibits excellent sensing response (R<sub>a</sub>/R<sub>g</sub> = 2196, 81 times higher than pure ZnO) to 50 ppm triethylamine at 140 °C, with fast response/recovery behavior, low limit of detection, and superior selectivity. Detailed structural characterization indicates that Pt nanoparticle modification reduces the band gap of the samples. In addition, the high content of Pt<sup>0</sup> species promotes the generation of adsorbed oxygen, which significantly enhances the gas-sensitive performance of the sensor. This work demonstrates that the concentration of Pt<sup>0</sup> species greatly affects gas-sensing performance.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"182 ","pages":"Article 113156"},"PeriodicalIF":5.3000,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The catalytic effect of Pt0 species on Pt/ZnO nanorods for robust triethylamine sensing detection\",\"authors\":\"Li-Juan Yue , Su-Mei Shen , Wen-Jie Zhang , Fei-Long Gong, Xuan-Yu Yang, Yong-Hui Zhang\",\"doi\":\"10.1016/j.materresbull.2024.113156\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The noble metal Pt modified ZnO nanomaterials are widely used to improve their gas sensing performance. However, the relationship between the catalytic effect of Pt<sup>x+</sup> species on the oxygen vacancies formation and gas-sensing performance is still unclear. Herein, the Pt/ZnO nanorods are successfully synthesized by using hydrothermal method, and the content of Pt<sup>0</sup> species are finely tuned through treating in different atmospheres. Notably, Pt modified ZnO calcined under Ar/H<sub>2</sub> (Pt/ZnO-3) exhibits excellent sensing response (R<sub>a</sub>/R<sub>g</sub> = 2196, 81 times higher than pure ZnO) to 50 ppm triethylamine at 140 °C, with fast response/recovery behavior, low limit of detection, and superior selectivity. Detailed structural characterization indicates that Pt nanoparticle modification reduces the band gap of the samples. In addition, the high content of Pt<sup>0</sup> species promotes the generation of adsorbed oxygen, which significantly enhances the gas-sensitive performance of the sensor. This work demonstrates that the concentration of Pt<sup>0</sup> species greatly affects gas-sensing performance.</div></div>\",\"PeriodicalId\":18265,\"journal\":{\"name\":\"Materials Research Bulletin\",\"volume\":\"182 \",\"pages\":\"Article 113156\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-10-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Research Bulletin\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0025540824004860\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540824004860","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
The catalytic effect of Pt0 species on Pt/ZnO nanorods for robust triethylamine sensing detection
The noble metal Pt modified ZnO nanomaterials are widely used to improve their gas sensing performance. However, the relationship between the catalytic effect of Ptx+ species on the oxygen vacancies formation and gas-sensing performance is still unclear. Herein, the Pt/ZnO nanorods are successfully synthesized by using hydrothermal method, and the content of Pt0 species are finely tuned through treating in different atmospheres. Notably, Pt modified ZnO calcined under Ar/H2 (Pt/ZnO-3) exhibits excellent sensing response (Ra/Rg = 2196, 81 times higher than pure ZnO) to 50 ppm triethylamine at 140 °C, with fast response/recovery behavior, low limit of detection, and superior selectivity. Detailed structural characterization indicates that Pt nanoparticle modification reduces the band gap of the samples. In addition, the high content of Pt0 species promotes the generation of adsorbed oxygen, which significantly enhances the gas-sensitive performance of the sensor. This work demonstrates that the concentration of Pt0 species greatly affects gas-sensing performance.
期刊介绍：
Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.
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