基于氧化铜纳米颗粒的乙醇传感器的制备与表征

Fabrication and Characterizations of Ethanol Sensor Based on CuO Nanoparticles.

作者信息

Al-Hadeethi Yas, Umar Ahmad, Kumar Rajesh, Al-Heniti Saleh H, Raffah Bahaaudin M

机构信息

Department of Physics, Faculty of Sciences, King Abdulaziz University, Jeddah-21589, Kingdom of Saudi Arabia.

Department of Chemistry, Faculty of Science and Arts, Najran University, P.O. Box 1988, Najran-11001, Kingdom of Saudi Arabia.

出版信息

J Nanosci Nanotechnol. 2018 Apr 1;18(4):2892-2897. doi: 10.1166/jnn.2018.14382.

DOI:10.1166/jnn.2018.14382

PMID:29442970

Abstract

In this paper, we report the synthesis, characterization and ethanol sensing applications of CuO nanoparticles. The CuO nanoparticles were prepared by a facile, low-temperature hydrothermal method and characterized in detail in terms of their structural, morphological, compositional and crystalline properties, through different characterization techniques including X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) attached with energy dispersive spectroscopy (EDS), and Fourier transform infrared (FTIR) spectroscopy. The detailed studies revealed that the synthesized CuO nanoparticles were well-crystalline and possessed monoclinic crystal structure. The synthesized CuO nanoparticles were utilized for the fabrication of highly sensitive ethanol gas sensor. At an optimized temperature of 320 °C, high sensitivity (Ra/Rg) of 39.29 was observed for 200 ppm of ethanol gas. Additionally, very low response (τres = 14 s) and recovery (τrec = 30 s) times were observed for 100 ppm of ethanol.

摘要

在本文中，我们报道了氧化铜纳米颗粒的合成、表征及其乙醇传感应用。通过简便的低温水热法制备了氧化铜纳米颗粒，并通过包括X射线衍射（XRD）、配备能谱仪（EDS）的场发射扫描电子显微镜（FESEM）以及傅里叶变换红外（FTIR）光谱等不同表征技术，对其结构、形态、成分和晶体性质进行了详细表征。详细研究表明，合成的氧化铜纳米颗粒结晶良好，具有单斜晶体结构。合成的氧化铜纳米颗粒被用于制造高灵敏度的乙醇气体传感器。在320°C的优化温度下，对于200 ppm的乙醇气体，观察到高灵敏度（Ra/Rg）为39.29。此外，对于100 ppm的乙醇，观察到非常低的响应时间（τres = 14 s）和恢复时间（τrec = 30 s）。