LPG Gas Sensor Research Articles

Preparation of HZ and LPG gas sensor : Wang, J. et al. Sensors and Actuators, B. Chemical, 2002, B84, (2–3), 95–97

Preparation of HZ and LPG gas sensor : Wang, J. et al. Sensors and Actuators, B. Chemical, 2002, B84, (2–3), 95–97

Preparation of H 2 and LPG gas sensor

Among the various metal oxide additives tested, Ag 2O is outstanding in promoting the sensing properties of γ-Fe 2O 3 element to H 2 in air. The γ-Fe 2O 3 element loaded with 6 wt.% Ag 2O is very sensitive to H 2 at 320 °C, while it is also sensitive to many other gases, especially C 2H 5OH. The element is highly sensitive and selective to H 2 and LPG, after it is modified with the surface-coat of Al 2O 3 containing 1.5 wt.% PtO. The response of this element to H 2 and C 4H 10 is rather rapid (only 4 and 6 s, respectively), and its resistance only changes 8.9% even when the ambient relative humidity varies broadly (from 10 to 98%). So the element is very useful to detect the leakage of coal gas or LPG in domestic appliances.