Volume No. 9 Issue No.: 3A Page No.: 872-877 January-March 2015

 

SYNTHESIS AND PROCESSING OF ZnO NANO-SIZED PARTICLES FOR GAS SENSING USING ULTRASONICATION

 

Patel Shahera S.*1 and Patil D. R .2

1. Department of Electronics, S. P. University, V. V. Nagar, Gujarat (INDIA) 2. Bulk and Nanomaterials Research Lab, R. L. College, Parola, Jalgaon, Maharashtra (INDIA)

 

Received on : October 10, 2014

 

ABSTRACT

 

In nanotechnology to produce and process nano size particles of various materials, the most frequently used method is ultrasonication. Ultrasonic processors are now a days widely used and have become important equipment for dispersion and deagglomeration of nanoparticles. ZnO is most important material for gas sensing applications. ZnO nanoparticles have been prepared by ultrasonic technique. The structural characterizations of the material were analyzed by means of X-ray Diffraction (XRD) and Transmission Electron Microscope (TEMs). The gas sensing properties of ZnO for different gases was investigated at room temperature. The experimental result shows that nanostructured ZnO is a promising material as ethanol gas sensor. Results were found reproducible. XRD shows the crystalline nature of the synthesized material. The minimum crystalline size was found around 13nm and average crystallite size was found around 18nm which is a significant factor for sensor fabrication purpose

 

Keywords : Gas sensor, Ultrasonication, Crystallite size, Nano size particle, Zinc oxide

 

 

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