LI Zhenyuan, ZHANG Qinyi, ZHANG Shunping, et al. Research on high-performance NOx gas sensitive materials based on high throughput sifting[J]. 2019, (7): 5-9.
LI Zhenyuan, ZHANG Qinyi, ZHANG Shunping, et al. Research on high-performance NOx gas sensitive materials based on high throughput sifting[J]. 2019, (7): 5-9. DOI: 10.13873/j.1000-9787(2019)07-0005-05.
基于高通量筛选的高性能NOx气敏材料研究
摘要
以SnO
2
BaTiO
3
ZnO为原材料设计一组材料体系
利用气敏膜并行合成仪并行制备45种气敏膜
通过高通量气敏性能无人测试仪表征气敏性能
筛选出对氮氧化物(NO
x
)气体敏感性、选择性较好的材料。通过对NO
NO
2
苯、甲醛、CO、乙醇气体的气敏性能测试
发现当SnO
2
和BaTiO
3
按摩尔比6∶2复合时
在200℃时对500×10
-9
NO
500×10
-9
NO
2
响应值分别有142
113.4
且具有较好的选择性。最后
对SnO
2
—BaTiO
3
复合材料如何提升传感器性能进行了讨论。
Abstract
To sift the materials of favorable sensitivity and selectivity to nitric oxide(NO
x
)
SnO
2
、BaTiO
3
and ZnO are used to design a group of material system.The total of 45 gas sensor films are prepared by gas-sensitive membrane parallel synthesis platform and the properties of gas sensor are measured by high-throughput gassensitive unmanned test platform.It can be concluded that the composite material of SnO
2
∶BaTiO
3
=6∶2 has the best response value through testing NO
are 142 and 113.4 respectively at the optimum operating temperature of 200℃.Meanwhile
the gas sensor film has the selectivity to above-mentioned gas.The principle of utilizing composite material to improve gas-sensitive property is discussed.