| Project/Area Number |
17K14812
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Inorganic materials/Physical properties
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2017-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | 環境触媒 / メタン / 揮発性有機化合物 / 酸化触媒 / 希土類 / イオン伝導 |
|---|
| Outline of Final Research Achievements |
From the viewpoint of the oxide ion conduction in solids, I synthesized novel environmental catalysts. For the CeO2-ZrO2 solid, the Ce4+ and Zr4+ sites were replaced by lower-valence Fe2+/3+, Ni2+/3+, or Bi3+ to increase the oxide ion conductivity caused by the formation of oxygen vacancies. By using these samples as promoters with Pd or Pt, I prepared the novel catalysts, which can completely oxidize methane at 280 degree C, toluene at 100 degree C, and formaldehyde at 20 degree C. In addition, I also demonstrated that the oxide ion conducting solid with apatite-type structure (La10Si6O27) worked as promoters for methane or VOCs oxidation.
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究では、温室効果ガスであるメタン、および人体や環境に有害な揮発性有機化合物（Volatile Organic Compounds; VOCs）を、高効率で分解することを目指し、「イオン伝導」の観点を取り入れた新しい環境触媒を創成した。その結果、従来触媒（メタンは350℃、VOCsは150℃）よりも低温（メタンは280℃、トルエンは100℃、ホルムアルデヒドは20℃）で完全燃焼可能な触媒を実現した。
|
