| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1525722 | Materials Chemistry and Physics | 2009 | 5 Pages |
Abstract
Pure and Ag-doped In2O3 nanocrystalline powders with different doping concentrations have been prepared by a sol–gel method, and characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and X-ray photoelectron spectrum (XPS). The results indicated that these powders had a good crystalline structure with an average crystallite size of 12 nm. The indirect heating structure sensors were fabricated by loading these powders on ceramic tubes with Au electrodes. Gas-sensing measurements indicated that the sensor fabricated from 8 wt.% Ag-doped In2O3 could detect HCHO gas down to 2 ppm with a short response time (10–15 s) and an excellent selectivity at 100 °C.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jinxing Wang, Bo Zou, Shengping Ruan, Jing Zhao, Fengqing Wu,