Preparation of LaFeO3nanofibers by electrospinning for gas sensors with fast response and recovery
Authors:
- Xiu-Juan XuXXXiu-Juan Xu
- Xiao-Kang MaXMXiao-Kang Ma
- Tong ZhangTZTong Zhang
- 8 February 2011
- journal article
- Published by IOP Publishing in Nanotechnology
- Vol. 22 (11) , 115502
Abstract
LaFeO(3) nanofibers are successfully prepared by the electrospinning method. XRD patterns show that the materials belong to a cubic system. After calcination at 600 °C for 3 h, SEM photographs show that the diameters of the nanofibers are about 80-90 nm and their surfaces are smooth. The response-recovery properties of an LaFeO(3) nanofiber sensor to ethanol are better than those of an LaFeO(3) nanobelt and nanoparticle sensor. LaFeO(3) nanofibers have relatively low resistance, and they improve the weakness of LaFeO(3) nanoparticles upon application. An LaFeO(3) nanofiber sensor also has good reversibility and selectivity to ethanol and is a very good p-type semiconductor material.Keywords
This publication has 49 references indexed in Scilit:
- Tin oxide nanocluster hydrogen and ammonia sensorsNanotechnology, 2007
- Water vapor detection with individual tin oxide nanowiresNanotechnology, 2007
- Metal oxides for solid-state gas sensors: What determines our choice?Materials Science and Engineering: B, 2007
- Gas-sensing properties of sensors based on single-crystalline SnO2 nanorods prepared by a simple molten-salt methodSensors and Actuators B: Chemical, 2006
- Toward innovations of gas sensor technologySensors and Actuators B: Chemical, 2005
- Nanotubular SnO2 Templated by Cellulose Fibers: Synthesis and Gas SensingChemistry of Materials, 2005
- Stable and highly sensitive gas sensors based on semiconducting oxide nanobeltsApplied Physics Letters, 2002
- Semiconducting oxides as gas-sensitive resistorsSensors and Actuators B: Chemical, 1999
- SnO2 sensors: current status and future prospectsSensors and Actuators B: Chemical, 1995
- A New Detector for Gaseous Components Using Semiconductive Thin Films.Analytical Chemistry, 1962