| Project/Area Number |
25410240
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Inorganic industrial materials
|
|---|
| Research Institution | Kyushu Institute of Technology |
|---|
Principal Investigator |
SHIMIZU YOUICHI 九州工業大学, 大学院工学研究院, 教授 (20192114)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TAKASE Satoko 九州工業大学, 大学院工学研究院, 助教 (60239275)
|
|---|
| Research Collaborator |
SONG Jeong-Hwan PaiChai University, 准教授
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
|
|---|
| Keywords | 化学センサ / ガスセンサ / 固体電解質 / インピーダンス / NOｘ / 無機工業化学 / セラミックス / インピーダンス検知 / 薄膜 / 酸化物 |
|---|
| Outline of Final Research Achievements |
Solid-state NOx sensor devices using an Li-ionic conductor (Li1.5Al0.5Ti1.5(PO4)3; LATP) as an impedance transducer and various matrials as a receptor, respectively, wereinvestigated. Among the sensor tested, pyrochlore-type oxide, nitrate (KNO3), zeolite-based devices showed good impedance response properties to NOx. Interestingly, the all metal-carbonate/LATP sensors did not respond to CO2 but gave good responses to NOx. It was found that the use of the binary carbonate (Li2CO3:CaCO3) receptor gave selective responses between NO and NO2, i.e., the response variation values as a function of gas concentration were completely opposite in sign for NO and NO2.
Thin-film NOX sensor device was also fabricated with LATP thin-film as a solid-electrolyte transducer and perovskite-type oxide thin-film as a receptor, respectively. The resistance and capacitance of the device decreased with increasing concentration of NO and NO2 depending on operating temperatures.
|
