N. Pinna, A. Bonavita, G. Neri, S. Capone, P. Siciliano, M. Niederberger
{"title":"Nonaqueous synthesis of high-purity indium and tin oxide nanocrystals and their application as gas sensors","authors":"N. Pinna, A. Bonavita, G. Neri, S. Capone, P. Siciliano, M. Niederberger","doi":"10.1109/ICSENS.2004.1426133","DOIUrl":null,"url":null,"abstract":"In this work, a nonaqueous and halide-free synthesis of In/sub 2/O/sub 3/ and SnO/sub 2/ nanoparticles is presented. These materials were carefully characterized by HRTEM and XPD. They exhibit grain sizes on the nanoscale (around 2.5 nm for SnO/sub 2/ and 20 nm for In/sub 2/O/sub 3/) and are well crystallized even at such small size. Using the same approach, also In/sub 2/O/sub 3/-SnO/sub 2/ mixed oxide phases were successfully synthesized. Gas sensors were fabricated using the synthesized nanopowders. The good sensitivity of these sensors was demonstrated by monitoring trace levels of both oxidizing (NO/sub 2/) and reducing gases (CO and CH/sub 4/). The sensors were found to show linearity in a wide range of concentration, rapid response and recovery times.","PeriodicalId":20476,"journal":{"name":"Proceedings of IEEE Sensors, 2004.","volume":"58 1","pages":"192-195 vol.1"},"PeriodicalIF":0.0000,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE Sensors, 2004.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSENS.2004.1426133","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
In this work, a nonaqueous and halide-free synthesis of In/sub 2/O/sub 3/ and SnO/sub 2/ nanoparticles is presented. These materials were carefully characterized by HRTEM and XPD. They exhibit grain sizes on the nanoscale (around 2.5 nm for SnO/sub 2/ and 20 nm for In/sub 2/O/sub 3/) and are well crystallized even at such small size. Using the same approach, also In/sub 2/O/sub 3/-SnO/sub 2/ mixed oxide phases were successfully synthesized. Gas sensors were fabricated using the synthesized nanopowders. The good sensitivity of these sensors was demonstrated by monitoring trace levels of both oxidizing (NO/sub 2/) and reducing gases (CO and CH/sub 4/). The sensors were found to show linearity in a wide range of concentration, rapid response and recovery times.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
