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Ethanol and acetone sensing properties of plasma sprayed copper oxide coating
Journal of Physics and Chemistry of Solids ( IF 4 ) Pub Date : 2021-08-13 , DOI: 10.1016/j.jpcs.2021.110333
V. Ambardekar 1 , T. Bhowmick 2 , P.P. Bandyopadhyay 1 , S.B. Majumder 2
Affiliation  

This paper attempts to understand ethanol and acetone sensing behavior of atmospheric plasma sprayed copper oxide coating. Gas responses toward 300 ppm ethanol (~844%) and 300 ppm acetone (~600%) were observed at 300 °C. Herein, response transients measured at different concentrations (300-25 ppm) were analyzed following Freundlich adsorption isotherm. Further, activation energy of adsorption was correlated with gas response (%) of ethanol and acetone vapors. Two different analytes, ethanol being an alcohol and acetone being a ketone form a distinct cluster in the principal component analysis. In a nut shell, gas sensing was found to be influenced by analyte properties (type, molecular weight, and kinetic diameter), nature of sensing surface, and reaction pathways during the gas-solid interaction.



中文翻译:

等离子喷涂氧化铜涂层的乙醇和丙酮传感特性

本文试图了解大气等离子喷涂氧化铜涂层的乙醇和丙酮传感行为。在 300 °C 下观察到对 300 ppm 乙醇 (~844%) 和 300 ppm 丙酮 (~600%) 的气体响应。在本文中,按照 Freundlich 吸附等温线分析了在不同浓度 (300-25 ppm) 下测量的响应瞬变。此外,吸附活化能与乙醇和丙酮蒸气的气体响应(%)相关。两种不同的分析物,乙醇是一种醇,丙酮是一种酮,在主成分分析中形成了一个不同的簇。简而言之,发现气体传感受分析物性质(类型、分子量和动力学直径)、传感表面的性质以及气固相互作用过程中的反应途径的影响。

更新日期:2021-08-17
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