| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 744351 | Sensors and Actuators B: Chemical | 2015 | 6 Pages |
Abstract
Cobalt oxide spinel (Co3O4) with an ordered nanostructure is used as a resistive gas sensor for carbon monoxide (CO) in low ppm concentrations. The operating temperature has a strong impact on the concentration-dependent sensing behavior. At lower temperature (473 K) the sensor response is governed mainly by surface coverage with CO and/or CO2, whereas at higher temperature (563 K) oxygen diffusion in the crystal lattice of Co3O4 strongly affects the sensing behavior.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
S. Vetter, S. Haffer, T. Wagner, M. Tiemann,