| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oxygen pole catalyst for a solid polymer fuel cell superior in catalyst activity of oxygen reduction which does not contain a noble metal such as platinum at all and which does not bring about efficiency deterioration of the fuel cell due to crossover, and an oxygen reduction electrode using the same, and a manufacturing method of these. <P>SOLUTION: The oxygen pole catalyst for solid polymer fuel cell is a catalyst of oxygen reduction electrode used for a solid polymer fuel cell which arranges an ion exchange membrane between a pair of electrodes, and the catalyst of the oxygen reduction electrode is a cubic titanium carbon nitride powder containing nitrogen 2.0-15.5 wt.%, carbon 6.0-19.0 wt.%, and free carbon 0.1-5.9 wt.%. <P>COPYRIGHT: (C)2008,JPO&INPIT |
