Sensing properties of ZnO nanoparticles synthesized by using albumen as a biotemplate for acetic acid monitoring in aqueous mixture
Sensing properties of ZnO nanoparticles synthesized by using albumen as a biotemplate for acetic acid monitoring in aqueous mixture
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DOI：
10.1016/j.snb.2012.09.011
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发表时间：
2013-01-01
影响因子：
8.4
通讯作者：
Neri, G.
中科院分区：
文献类型：
--
作者：
Prakash, T.;Jayaprakash, R.;Neri, G.
本文报道了用等温蒸发法合成的纳米氧化锌颗粒的表征和传感性能。该合成方法简单、成本低，并以蛋白（EA）为模板剂。X射线衍射（XRD）和透射电子显微镜（TEM）表征的退火后的样品表明，具有纤锌矿相结构的纳米晶体ZnO的形成。取决于退火温度，ZnO微晶的平均粒径在10-30 nm范围内。通过傅里叶变换红外光谱（FT-IR）和热重分析（TGA）对样品进行了进一步分析。我们的目的是使用合成的ZnO纳米粒子作为传感材料的监测乙酸（AA）的连续型气体传感器。因此，已研究了沉积在氧化铝衬底上的ZnO纳米颗粒的厚膜的电学和传感特性，所述氧化铝衬底提供有Pt叉指电极。已发现制造的传感器设备非常有前途的AA/含水混合物的顶空乙酸的监测。(C)2012爱思唯尔有限公司版权所有。
This paper reports the characterization and sensing properties of nanosized zinc oxide particles synthesized by means of an isothermal evaporation method. The synthesis, simple and cost effective, has been assisted by albumen (EA) as a biotemplate agent. X-ray diffraction (XRD) and transmission electron microscopy (TEM) characterization of the samples after annealing showed the formation of nano crystalline ZnO having the wurtzite phase structure. Depending on the annealing temperature, the mean particles size of ZnO crystallites were in the 10-30 nm range. The samples were further analyzed by Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analysis (TGA). Our objective was to use the synthesized ZnO nanoparticles as sensing material for the monitoring of acetic acid (AA) with resistive-type gas sensors. Therefore, the electrical and sensing properties of thick films of ZnO nanoparticles deposited on alumina substrates provided with Pt interdigited electrodes have been investigated. The sensor devices fabricated have been found very promising for the monitoring of acetic acid in the head-space of AA/aqueous mixtures. (C) 2012 Elsevier B.V. All rights reserved.