AACVD Synthesis of Bilayer Thin-Film ZnO/Cr2O3 Nanocomposites for Chemoresistive Gas Sensors

IF 1.5 3区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR
A. S. Mokrushin, S. A. Dmitrieva, Y. M. Gorban, A. R. Stroikova, N. P. Simonenko, A. A. Averin, E. P. Simonenko
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引用次数: 0

Abstract

Using aerosol-assisted vapor deposition (AACVD), bilayer ZnO/Cr2O3 thin-film nanocomposites were prepared and validated using various physicochemical analyses. The thermal behavior of precursors—zinc and chromium acetylacetonates—was studied using TGA/DSC. The chemical composition of the obtained coatings was confirmed by EDX method, and the physical composition was confirmed by X-ray diffraction and Raman spectroscopy. The microstructural features were studied by SEM method. It was found that by varying the precursor concentration it is possible to change the morphology of the obtained coatings from an island structure to a continuous film. It is shown that ZnO/Cr2O3 bilayer films demonstrate a noticeable chemoresistive response in acetone detection.

Abstract Image

化学阻性气体传感器用双层ZnO/Cr2O3纳米复合材料的AACVD合成
采用气溶胶辅助气相沉积(AACVD)技术制备了双层ZnO/Cr2O3纳米复合材料,并通过各种物理化学分析对其进行了验证。采用热重分析/差热分析方法研究了前驱体乙酰丙酮酸锌和乙酰丙酮酸铬的热行为。用EDX法确定了涂层的化学成分,用x射线衍射和拉曼光谱确定了涂层的物理成分。采用扫描电镜对其微观组织特征进行了研究。研究发现,通过改变前驱体的浓度,可以改变涂层的形态,使其由岛状结构变为连续状。结果表明,ZnO/Cr2O3双层膜在丙酮检测中表现出明显的化学电阻响应。
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来源期刊
Russian Journal of Inorganic Chemistry
Russian Journal of Inorganic Chemistry 化学-无机化学与核化学
CiteScore
3.10
自引率
38.10%
发文量
237
审稿时长
3 months
期刊介绍: Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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