化学工程
检出限
纳米技术
分析化学(期刊)
纳米-
作者
Ahmad Umar,Ahmed Ibrahim,Rajesh Kumar,Hasan Albargi,Wen Zeng,Mohsen Ali M. Alhmami,Mabkhoot A. Alsaiari,Sotirios Baskoutas
标识
DOI:10.1016/j.matlet.2020.129232
摘要
Abstract α-MnO2 nanoparticles were hydrothermally synthesized and characterized for their various physicochemical properties using different techniques. The average diameter of the nanoparticles was observed to be 70 ± 5 nm along with well-resolved inter-planar spacing of 0.241 nm corresponding to (211) plane for α-MnO2 crystal phase. Working electrode for ethanol gas sensing fabricated by using α-MnO2 nanoparticles showed gas response of 30.6 at optimized temperature of 300 °C. The corresponding response and recovery times were 30 s and 40 s, respectively for 200 ppm ethanol at 300 °C.
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