Effect of sensor thickness on trimethylamine sensitivity of In2O3-MgO sensors loaded with noble metals
被引:11
作者:
Takao, Y
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机构:
NAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPANNAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPAN
Takao, Y
[1
]
Han, MH
论文数: 0引用数: 0
h-index: 0
机构:
NAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPANNAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPAN
Han, MH
[1
]
Shimizu, Y
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h-index: 0
机构:
NAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPANNAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPAN
Shimizu, Y
[1
]
Egashira, M
论文数: 0引用数: 0
h-index: 0
机构:
NAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPANNAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPAN
Egashira, M
[1
]
机构:
[1] NAGASAKI UNIV,FAC ENGN,DEPT MAT SCI & ENGN,NAGASAKI 852,JAPAN
来源:
DENKI KAGAKU
|
1996年
/
64卷
/
12期
关键词:
semiconductor gas sensors;
sensor thickness;
trimethylamine;
catalytic activity;
D O I:
10.5796/kogyobutsurikagaku.64.1280
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Variations in trimethylamine (TMA) sensitivity with sensor thickness as well as operating temperature have been investigated with thick film In2O3-MgO (5 mol%)-based sensors with interior electrodes. The sensitivity of pure In2O3-MgO (5 mol%) tended to exhibit a maximum TMA sensitivity at a certain sensor thickness at temperatures lower than 530 degrees C. Loading of 0.5 wt% Pt led to a monotonous decrease in sensitivity with increasing thickness even at a temperature as low as 300 degrees C, and then to a significant decrease in sensitivity. In contrast, the sensitivity enhancement induced by the loading of 0.5 wt% Au remained almost unchanged up to about 2.5 mm thick, especially at temperatures lower than 375 degrees C. Among the sensors tested, the Au-loaded sensor with around 2 mm thick exhibited the highest TMA sensitivity at 300 degrees C.