Superior acetone sensor based on single-crystalline α-Fe₂O₃ mesoporous nanospheres via [C₁₂mim][BF₄]-assistant synthesis

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• 作者：Ping Wang^a ; ^bAuthor Vitae ; Xianfa Zhang^aAuthor Vitae ; Shan Gao^aAuthor Vitae ; Xiaoli Cheng^aAuthor Vitae ; Lili Sui^bAuthor Vitae ; Yingming Xu^a ; ^{xuyingming@hlju.edu.cn}Author Vitae ; Xi Zhao^aAuthor Vitae ; Hui Zhao^aAuthor Vitae ; Lihua Huo^a ; ^{lhhuo68@yahoo.com}Author Vitae
• 关键词：α-Fe2O3 hierarchically mesoporous nanospheres ; Ionic liquid-assisted synthesis ; Appropriate IL residual ; Breath acetone detection
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：31 March 2017
• 年：2017
• 卷：241
• 期：Complete
• 页码：967-977
• 全文大小：3823 K
• 卷排序：241

文摘

Single-crystalline α-Fe2O3 mesoporous nanospheres were synthesized by an ionic liquid-assisted hydrothermal synthetic method. 1-Dodecyl-3-methylimidazolium tetrafluoroborate ([C12mim][BF4]) is a key factor to control the morphology of the final product. The sensors show the best acetone sensing property, including good selectivity, fast response, and low detection limit to acetone at 170 °C. The sensors can detect acetone down to 0.1 ppm and have good anti-interference of ethahol and humidity.