Abstract
Porous TiO2 films were prepared by the micro-arc oxidation (MAO) of Ti plates, and their CO sensing properties at low concentrations (5-100 ppm) were investigated as an application for an air quality control sensor. The obtained rutile films exhibited the maximum CO gas response at 350 °C, which is typical for semiconductor-type gas sensors, and the Ra/Rg was ∼1.6 for 10 ppm CO (Ra: resistance in air, Rg: resistance in a sample gas). The magnitude of the gas response increased almost linearly with increasing the CO concentration from 5 to 100 ppm. The CO sensing performance of the TiO2 sensor in the presence of humidity was investigated and compared with that of a SnO2 sensor.
| Original language | English |
|---|---|
| Pages (from-to) | 69-73 |
| Number of pages | 5 |
| Journal | Sensors and Actuators, B: Chemical |
| Volume | 120 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Dec 14 |
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Keywords
- Air quality control
- CO sensor
- Micro-arc oxidation
- TiO
ASJC Scopus subject areas
- Analytical Chemistry
- Electrochemistry
- Electrical and Electronic Engineering
Cite this
CO sensing performance in micro-arc oxidized TiO2 films for air quality control. / Jun, Youn Ki; Kim, Hyun Su; Lee, Jong Heun; Hong, Seong Hyeon.
In: Sensors and Actuators, B: Chemical, Vol. 120, No. 1, 14.12.2006, p. 69-73.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - CO sensing performance in micro-arc oxidized TiO2 films for air quality control
AU - Jun, Youn Ki
AU - Kim, Hyun Su
AU - Lee, Jong Heun
AU - Hong, Seong Hyeon
PY - 2006/12/14
Y1 - 2006/12/14
N2 - Porous TiO2 films were prepared by the micro-arc oxidation (MAO) of Ti plates, and their CO sensing properties at low concentrations (5-100 ppm) were investigated as an application for an air quality control sensor. The obtained rutile films exhibited the maximum CO gas response at 350 °C, which is typical for semiconductor-type gas sensors, and the Ra/Rg was ∼1.6 for 10 ppm CO (Ra: resistance in air, Rg: resistance in a sample gas). The magnitude of the gas response increased almost linearly with increasing the CO concentration from 5 to 100 ppm. The CO sensing performance of the TiO2 sensor in the presence of humidity was investigated and compared with that of a SnO2 sensor.
AB - Porous TiO2 films were prepared by the micro-arc oxidation (MAO) of Ti plates, and their CO sensing properties at low concentrations (5-100 ppm) were investigated as an application for an air quality control sensor. The obtained rutile films exhibited the maximum CO gas response at 350 °C, which is typical for semiconductor-type gas sensors, and the Ra/Rg was ∼1.6 for 10 ppm CO (Ra: resistance in air, Rg: resistance in a sample gas). The magnitude of the gas response increased almost linearly with increasing the CO concentration from 5 to 100 ppm. The CO sensing performance of the TiO2 sensor in the presence of humidity was investigated and compared with that of a SnO2 sensor.
KW - Air quality control
KW - CO sensor
KW - Micro-arc oxidation
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=33749266362&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749266362&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2006.01.045
DO - 10.1016/j.snb.2006.01.045
M3 - Article
AN - SCOPUS:33749266362
VL - 120
SP - 69
EP - 73
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
IS - 1
ER -