ZHANG Zhi-chun1, WANG Tao-fen2, DENG Yong-he3. Effect of Pt/Pd on WO3combustible gas sensing element[J]. 2008, (5): 40-42. DOI: 10.13873/j.1000-97872008.05.021.
Pt/Pd对WO3燃气敏感元件的影响
摘要
在WO3粉体材料中加入Pt
PtO2
Pd
PdCl2
以恒温600℃烧结1h制成旁热式厚膜可燃性气敏元件。采用静态电压测量法
研究了元件的加热电压与元件灵敏度的关系。实验结果表明:WO3元件掺入质量分数为0.5%的Pt/Pd
在加热功率为600 mW时
能提高元件的灵敏度2
1
0倍。
Abstract
The heating type thick film combustible gas sensing element is obtained by mixing Pt
PtO2
Pd
PdCl2 into WO3 powder and heating for 1h at stable 600 ℃.Based on the steady voltage measuring method
the relationship between the heating voltage and the sensitivity of element is researched.The experiment results show the sensitivities of WO3 combustible gase sensing element is improved 2
1
0 times by doping 0.5 % mass fraction Pt/Pd with the heat power at 600 mW.
WO3 thin film prepared by PECVD technique and its gas sensing properties to NO2 [J] . Maosong Tong,Guorui Dai,Yuanda Wu,Xiuli He,Dingsan Gao. Journal of Materials Science . 2001 (10)