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