Elucidation of Enhanced activity for oxygen reduction reaction of Pt catalyst loaded on the partially reduced mixed oxides
| Project/Area Number |
15K13765
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Energy-related chemistry
|
|---|
| Research Institution | University of Miyazaki |
|---|
Principal Investigator |
Sakai Go 宮崎大学, 工学部, 教授 (40284567)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
|---|
| Keywords | 電極触媒 / 酸素還元活性 / 酸化物担体 / 溶媒熱処理 / 結晶成長 / 水熱処理 / 燃料電池 / 酸化物 / 白金 / 酸素還元 |
|---|
| Outline of Final Research Achievements |
Enhanced activity for oxygen reduction reaction of Pt catalyst loaded on the partially reduced TiO2-SnO2 mixed oxides was found to be originated not only from the interaction between Pt catalyst and lower oxidation state of Ti, i.e., Ti3+, but also from the electron supply effect through carbon supports. The obtained Pt catalyst loaded on partially reduced TiO2-SnO2 mixed oxides showed fairly high specific activity: oxygen reduction activity per specific surface area. The trivalent titanium-derived amorphous precursor of TiO2-SnO2 showed peculiar crystal growth, i.e., the precursor pre-calcined at 250 oC showed obvious crystal growth under following hydrothermal treatment at lower temperature of 150 oC. This finding was applied for preparing Pt/TiO2-SnO2 catalyst and the obtained catalyst showed higher specific activity for oxygen reduction reaction.
|
Report
(4 results)
Research Products
(9 results)
