Nanocrystalline Nickel Zinc Ferrite as an efficient alcohol sensor at room temperature

Nanocrystalline Nickel Zinc Ferrite as an efficient alcohol sensor at room temperature



C.Mukherjee, D.Mondal, M. Sarkar, J. Das



In the present communication, nanocrystalline nickel
zinc ferrite (NZF) has been successfully synthesized by temperature and
spin controlled coprecipitation techinique. The structural and surface
morphological characterizations of the sample have been analyzed by
means of Powder X-ray Diffraction (PXRD) and Field Emission Scanning
Electron Microscopy (FESEM). The minimum crystalline size of prepared
NZF sample calculated from Scherer’s formula and is found to be 25 nm.
FESEM images exhibit the porous nature of the sensing material with a
number of active sites. In a comparative study on the sensing
characteristics of nanostructured NZF pellet towards three primary
alcohols viz. ethanol, propanol and butanol, the maximum sensitivity is
found to be nearly 90% for 1000 ppm of the ethanol vapour at room
temperature. The sensing response followed the order of ethanol >
propanol > butanol with respect to time. The experimental results
show that nanostructured NZF is a promising material for alcohol sensor.
The sensor responses are quite stable and highly reproducible even at
room temperature. 



10.22161/ijeab/2.2.29



http://ijeab.com/upload_document/issue_files/29%20IJEAB-MAR-2017-26-Nanocrystalline%20Nickel%20Zinc%20Ferrite%20as%20an%20efficient.pdf



http://ijeab.com/submit-paper/

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