Nano Composite:Synthesis, Characterization and Gas Sensor Application

Dayakar, T., Venkateswara Rao, K., Shilpa Chakra, C.H.

ISBN 10: 3659875570 / ISBN 13: 9783659875571

Published by LAP LAMBERT Academic Publishing, 2016

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Bibliographic Details

• Title: Nano Composite:Synthesis, Characterization and Gas Sensor Application
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2016
• Language: English
• ISBN 10: 3659875570
• ISBN 13: 9783659875571
• Binding: paperback
• Condition: New
• Book Type: book

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Synopsis

The present work involves synthesis and characterization of Nanocomposite and to know the sensitivity of prepared samples for gas sensor application. Magnesium Ferrite/Anatase Titanium dioxide Nanocomposite was prepared by Chemical combustion cum wet grinding technique MgFe2O4(1-x)/TiO2(x) i.e., (0<1.0). Then mixed powder was annealing to a temperature of 500 C, Further these materials were used for gas sensor application. The obtained materials were characterized by XRD, PSA, SEM, UV-Visible, FTIR, and TG-DTA respectively. The gas sensor application for characterized samples have electrons as majority carriers in the conduction band of n-type semiconductor materials MgFe2O4(1-x)/Anatase TiO2(x). When exposed to the air, the atmospheric oxygen molecules are adsorbed on the surface of the material causing the depletion layer at the surface of the material. As a result the material shows high resistance when exposed to C2H5OH gas, the interaction of C2H5OH with the surface chemisorbed O2− takes place releasing electrons to the depletion layer and increasing the electrical conductance of the semiconductor decreases the resistance and improves the sensitivity for prepared samples.

About the Author

T.Dayakar was born in Warangal,Telangana,INDIA. He did his B.Tech(Biotech) & M.Tech(Nanotechnology). Presently He is pursuing Ph.D. under Rajiv Gandhi National Fellowship (RGNF) - UGC in Center for Nano Science and Technology from Jawaharlal Nehru Technological University Hyderabad,INDIA.