Preparation and Ethanol Sensing Properties of ZnO Nanoparticles via a Novel Sol-Gel Method. (5th March 2012)

• Record Type: Journal Article
• Authors: Ahmadi Daryakenari, A.; Ahmadi Daryakenari, M.; Bahari, Y.; Omivar, H.
• Other Names: Alexandrescu R. Academic Editor.; Tsoukalas D. Academic Editor.
• Is Part Of: ISRN nanotechnology. Volume 2012(2012)
• Publication Date: 2012-03-05
• Subjects: Nanotechnology -- Periodicals; Nanotechnology; Nanotechnology; Electronic journals; Periodicals; Electronic journals; 620.5
• DOI: 10.5402/2012/879480
• Languages: English
• ISSNs: 2090-6064

Abstract

Abstract : ZnO nanoparticles were prepared using a novel sol-gel method. Chemical reactions were carried out between zinc acetate and methanol under ambient conditions using monoethanol amine (MEA) as surfactant and subsequent heating at 200 ∘ C . The powders were calcined, pressed into pellets, and presintered. The properties of the product were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectra. For gas sensing experiment, ethanol was used as testing gas. The gas sensing results showed that the maximum value for detecting of 1000 ppm ethanol vapor was 25 at an operating temperature of 370 ∘ C .