Room-temperature solution synthesis of Bi2O3 nanowires for gas sensing application

Authors

Xinglong Gou, China West Normal University, Nanchong, People’s Republic of China
Rong Li, China West Normal University, Nanchong, People’s Republic of China
Guoxiu Wang, University of Wollongong
Z. Chen, University of WollongongFollow
David Wexle, University of Wollongong

RIS ID

29983

Publication Details

Gou, X., Li, R., Wang, G., Chen, Z. & Wexler, D. (2009). Room-temperature solution synthesis of Bi2O3 nanowires for gas sensing application. Nanotechnology, 20 1-5.

Abstract

A simple room-temperature solution chemical route for bulk synthesis of high quality α- Bi₂O₃ nanowires has been demonstrated. The nanowires have a diameter of about 50 nm and a length in the range of several to tens of micrometers. It was found that oleic acid played an important role in directing the growth of α- Bi₂O₃ nanowires along the [102] direction, and the diameter of the nanowires increased with an increase of the reaction temperature. Furthermore, the Bi₂O₃ nanowire sensors are highly sensitive to ppm-levels of NO₂ in ambient air with fast response, good selectivity and stability, indicating their potential applications for environmental monitoring and pollution control.