Title :
Reductive-gas sensor using iron oxide nanowires
Author :
Uriya, Yuu ; Nagato, Keisuke ; Hamaguchi, Tetsuya ; Nakao, Masayuki
Author_Institution :
Dept. of Mech. Eng., Univ. of Tokyo, Tokyo, Japan
Abstract :
We have proposed and developed a new gas sensor using the change in the permeability of iron oxide nanowires. α-Fe2O3 nanowires are synthesized by the simple annealing of Fe bulks or films at 375°C in air. When the surface of α-Fe2O3 nanowires is changed by a reductive gas into α-Fe2O3 or Fe3O4, the permeability of the nanowires increases. Our sensor is based on the change in the permeability of the nanowires.
Keywords :
gas sensors; iron compounds; nanosensors; nanowires; Fe2O3; Fe3O4; iron oxide nanowire; nanowires permeability; reductive-gas sensor; temperature 375 degC; Annealing; Furnaces; Iron; Nanowires; Permeability; Resonant frequency; Substrates; gas; inductance; nanowire; sensor;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2011 11th IEEE Conference on
Conference_Location :
Portland, OR
Print_ISBN :
978-1-4577-1514-3
Electronic_ISBN :
1944-9399
DOI :
10.1109/NANO.2011.6144635
