Facile Synthesis of Rose-Like NiO Nanoparticles and Their Ethanol Gas-Sensing Property  

作　　者：张勇 谢龙珍 李海蓉 王鹏 刘肃 彭应全 张苗 

机构地区：[1]School of Physical Science and Technology, Lanzhou University, Lanzhou 730000 [2]Editorial Board of Journal of Lanzhou University, Lanzhou 730000 [3]Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050

出　　处：《Chinese Physics Letters》2015年第9期158-161,共4页中国物理快报（英文版）

基　　金：Supported by the Natural Science Foundation of Gansu Province under Grant No 1107RJZA090;the Foundation of State Key Library of Functional Materials for Informatics of Shanghai Institute of Microsystem and Information Technology;the National Natural Science Foundation of China under Grant No 61204106

摘　　要：In this study, rose-like nickel oxide （NiO） nanoparticles with diameters of 400-500 nm are prepared on ITO glass substrates by simple electrodeposition in NiSO46H20 solution at room temperature followed by oxidation in air. Scanning electron microscopy, x-ray diffraction and a transmission electron microscope are used for analyses of the NiO nanoparticles. The ethanol gas sensitivity of these nanoparticles is studied. The results indicate that the rose-like NiO nanoparticles could be used for the fabrication of ethanol gas sensors to monitor the low concentration of ethanol gas in air. Furthermore, at 5 ppm, the NiO nanorose-based sensors show a high response to ethanol （Rg/Ra = 8.4）.In this study, rose-like nickel oxide （NiO） nanoparticles with diameters of 400-500 nm are prepared on ITO glass substrates by simple electrodeposition in NiSO46H20 solution at room temperature followed by oxidation in air. Scanning electron microscopy, x-ray diffraction and a transmission electron microscope are used for analyses of the NiO nanoparticles. The ethanol gas sensitivity of these nanoparticles is studied. The results indicate that the rose-like NiO nanoparticles could be used for the fabrication of ethanol gas sensors to monitor the low concentration of ethanol gas in air. Furthermore, at 5 ppm, the NiO nanorose-based sensors show a high response to ethanol （Rg/Ra = 8.4）.

关 键 词：NiO Facile Synthesis of Rose-Like NiO Nanoparticles and Their Ethanol Gas-Sensing Property 

分 类 号：O614.813[理学—无机化学] TB383.1[理学—化学]