TiO2 광촉매와 UV LED를 이용한 접촉연소식 수소센서
Catalytic combustion type hydrogen gas sensor using TiO2 and UV LED
2
조회
0
다운로드
6
인용
0
참고문헌
초록
Abstract
A thick film catalytic gas sensors which can be operated at 142oC in presence of ultra violet-light emitting diode hasof TiO2 (5 wt%) and Pd/Pt (20 wt%) supported on Al2O3 powder and the reference material to compensate the heat capacityof it in a bridge circuit was an catalyst free Al2O3 powder. Platinum heater and sensor materials were formed on thealumina plate by screen printing method and heat treatment. The effect of UV radiation in the presence of photo catalystTiO2 on the sensor sensitivity, response and recovery time has been investigated. The reduction of operating temperaturefrom 192oC to 142oC for hydrogen gas sensing property in presence of UV radiation is attributed to the hydroxy radical2 under UV radiation.
참고문헌 (14)
- "“Feasibility of renewable energy storage using hydrogen in remote communities in Bhutan" (2006)
- "“A step on the road to hydrogen civilization”", 27, pp.719~723 (2004)
- "An evaluation of fuel storage International J. of Hydrogen Energy", 14, pp.81~130 (1989)
- "“The Hawaii hydrogen from renewable energy program” International J. of Hydrogen Energy", 13, pp.483~488 (1989)
- "“Principle of the detection of flammable atmospheres by catalytic devices”", 21, pp.303~311 (1973)
- "“The role of catalysts in solid-state gas sensors”", 10, pp.141~163 (1986)
- "“The detection of hydrogen using catalytic flammable gas sensors”", 16, pp.215~224 (1989)
- "“Passivated thick film catalytic type H2 sensor operating at low temperature”", 84, pp.219~225 (2002)
- Sens. Actuators B, "“Gas-sensing properties of SnO2 pyrolytic films subjected to ultra violet radiation”", 17, pp.211~214 (1994)
- G. Faglia, "“Photo sensitivity activation of SnO2 thin film gas sensors at room temperature”", 31, pp.99~103 (1996)
- S. Shukla, "“Effect of UV radiation exposure on room temperaturehydrogen sensitivity of nano crystalline doped tin oxide sensor incorporatedinto microelectro mechanical system device”", 97, pp.054307~ (2005)
- G. K. Mor, "“A room temperature TiO2-nanotube hydrogen sensor able to self clean photo activity from environmental contamination”", 19, pp.628~634 (2004)
- C.-H. Han, "Microhydrogen gas sensor using SiO2 coated F-doped SnO2", 16(1), pp.158~161 (2005)
- D. U. Hong, "Catalytic combustible hydrogen sensor using crystalline F-doped SnO2”,", 16(1), pp.292~293 (2005)