2016 Fiscal Year Final Research Report
Development of non-platinum carbon-free catalyst without the use of ammonia gas pyrolysis
| Project/Area Number |
26420132
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Thermal engineering
|
|---|
| Research Institution | Hirosaki University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | 固体高分子形燃料電池 / カソード / 酸窒化物 |
|---|
| Outline of Final Research Achievements |
Cathode catalysts without platinum group metals (PGMs) or carbon supports can reduce the price of polymer electrolyte fuel cells in automobiles, making them commercially competitive. In this paper, an inexpensive and PGM-free catalyst; i.e., amorphous nitrogen-doped TiO2-shell on TiN-core was synthesized without carbon support. While existing PGM-free all-oxide catalysts without carbon support have shown moderate current densities (at the order of μA/cm2), the current density of this new catalyst is three orders of magnitude higher. Replacing commercial carbon support by hydrothermally synthesized Ti4O7 significantly enhanced the activity to be close to that of carbon-supported platinum. Although its conductivity and surface area were not sufficient for an accurate evaluation of its activity, these new results demonstrate the possibility of high-performance non-PGM catalysts without carbon supports.
|
| Free Research Field |
熱工学、電気化学
|
