Effect of Influencing Factors in the Sonochemical Synthesis of Gamma Iron Oxide and its Gas Sensing Property

Author

Biswal, Ramesh Chandra ; Chakraverty, Ananta Prasad

Author_Institution

Metall. & Mater. Eng. Dept., Indian Inst. of Technol., Kharagpur, India

fYear

2011

fDate

8-10 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

Nano γ-Fe₂O₃ was easily synthesized by sonochemical route with the variation of the influencing factors like sonication time and purging of N₂ gas. The synthesized powders were characterized by X-ray diffraction (XRD), transmission electron micrograph (TEM), selected area electron diffraction (SAED) and scanning electron microscope (SEM). The synthesized powder was coated over an electroded alumina tube followed by sensor fabrication and the response of the fabricated sensors towards acetone and alcohol were measured. High sensitivity of γ-Fe₂O₃ based sensor towards sub PPM of acetone was observed for which γ-Fe₂O₃ can be claimed as a possible material for the non invasively detection of diabetics.

Keywords

gas sensors; scanning electron microscopy; transmission electron microscopy; gamma iron oxide; gas sensing property; scanning electron microscope; selected area electron diffraction; sonochemical synthesis; synthesized powders; transmission electron micrograph; x ray diffraction; Diffraction; Materials; Powders; Temperature sensors; X-ray diffraction; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience, Technology and Societal Implications (NSTSI), 2011 International Conference on

Conference_Location

Bhubaneswar

Print_ISBN

978-1-4577-2035-2

Type

conf

DOI

10.1109/NSTSI.2011.6111784

Filename

6111784