Chemoresistive Gas Sensors for Sub-ppm Acetone Detection

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• 作者：A. Fioravanti^a ; ^b ; S. Morandi^c ; M.C. Carotta^a ; ^{mc.carotta@imamoter.cnr.it}
• 关键词：thick film gas sensors ; metal oxide semiconductors ; sub-ppm acetone detection
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：168
• 期：Complete
• 页码：485-488
• 全文大小：829 K
• 卷排序：168

文摘

New sensors for detecting acetone directly in the exhaled breath have been developed. Several metal oxide materials, ZnO in different nano-morphologies, WO3 pure and Zr-loaded and TixSn1-xO2 solid solutions, have been considered for comparing the functional properties of the corresponding thick films with respect to the target gas. ZnO nano-sheets and bipyramidal nano-aggregates exhibited the large responses towards acetone, however ZnO aggregates of nanocrystals, Zr-WO3 and TixSn1-xO2 showed better performances as regards the influence of humidity on the acetone response.