Manjushree. C. Naik, Sachin S. Potdar, Shalini V. Garg, Ganpati M. Kharmate, Keshav S. Pakhare
{"title":"Chemical combustion synthesis of CeO2–ZnO nanocomposite and its application in ethanol sensing","authors":"Manjushree. C. Naik, Sachin S. Potdar, Shalini V. Garg, Ganpati M. Kharmate, Keshav S. Pakhare","doi":"10.1007/s10854-024-13784-x","DOIUrl":null,"url":null,"abstract":"<div><p>Metal oxide-based nanocomposites has been regarded as a useful tool for sensors technology to detect various hazardous gases at low concentrations. In this work, the CeO<sub>2</sub>–ZnO composite was successfully synthesized using a simple chemical combustion method. The synthesized samples were characterized by employing different characterization techniques. The results demonstrated that the cubic fluorite phase of CeO<sub>2</sub> and the hexagonal wurtzite phase of ZnO have been obtained while the CeO<sub>2</sub>–ZnO composite showed a mixed phase of CeO<sub>2</sub> and ZnO. The morphology of the CeO<sub>2</sub>–ZnO products has a nanoporous structure. The well-defined structure of the CeO<sub>2</sub>–ZnO nanocomposite was confirmed by the HR-TEM. Furthermore, gas sensing study showed that CeO<sub>2</sub>–ZnO nanocomposite exhibited enhanced sensing properties toward ethanol at an operating temperature of 275 ℃. The gas sensitivity value was 61.75% toward 24 ppm ethanol. This could be attributed to the formation of the n–n heterojunction between CeO<sub>2</sub> and ZnO which enhances conductivity value to give more sensitivity.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 32","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-024-13784-x","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Metal oxide-based nanocomposites has been regarded as a useful tool for sensors technology to detect various hazardous gases at low concentrations. In this work, the CeO2–ZnO composite was successfully synthesized using a simple chemical combustion method. The synthesized samples were characterized by employing different characterization techniques. The results demonstrated that the cubic fluorite phase of CeO2 and the hexagonal wurtzite phase of ZnO have been obtained while the CeO2–ZnO composite showed a mixed phase of CeO2 and ZnO. The morphology of the CeO2–ZnO products has a nanoporous structure. The well-defined structure of the CeO2–ZnO nanocomposite was confirmed by the HR-TEM. Furthermore, gas sensing study showed that CeO2–ZnO nanocomposite exhibited enhanced sensing properties toward ethanol at an operating temperature of 275 ℃. The gas sensitivity value was 61.75% toward 24 ppm ethanol. This could be attributed to the formation of the n–n heterojunction between CeO2 and ZnO which enhances conductivity value to give more sensitivity.
期刊介绍:
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.