Catalyst, method for production of same, and use of same

Details Catalyst, method for production of same, and use of same Catalyst, method for production of same, and use of same

B - Operations, Transporting

01

J

B01J 27/24 (2006.01) H01M 4/88 (2006.01) H01M 4/90 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2760295

Disclosed is a catalyst which does not corrode in an acidic electrolyte or at a high potential, shows excellent durability and has high ability to reduce oxygen. Specifically disclosed is a catalyst containing a metal element (M), carbon, nitrogen and oxygen, characterized in that when measured by Raman spectrometry, peaks are observed at 1340-1365 cm-1 and 1580-1610 cm-1; and said metal element (M) is one element selected from the group consisting of titanium, iron, niobium, zirconium and tantalum. The aforesaid catalyst does not corrode in an acidic electrolyte or at a high potential, is stable, has high ability to reduce oxygen and is less expensive than platinum. Thus, a fuel battery provided with the catalyst is relatively inexpensive and achieves good performance.

La présente invention concerne un catalyseur qui ne se corrode pas dans un électrolyte acide ou à potentiel élevé, qui présente une excellente durabilité et une forte capacité à réduire l'oxygène. Spécifiquement, l'invention concerne un catalyseur contenant un élément métallique (M), du carbone, de l'azote et de l'oxygène, caractérisé en ce que la mesure par spectrométrie de Raman donne des pics à 1340-1365 cm-1 et 1580-1610 cm-1, ledit élément métallique (M) étant un élément choisi dans le groupe constitué par le titane, le fer, le niobium, le zirconium et le tantale. Le catalyseur susmentionné ne se corrode pas dans un électrolyte acide ou à un potentiel élevé, est stable, présente une capacité élevée à réduire l'oxygène et est moins coûteux que le platine. Une pile à combustible dotée du catalyseur est donc relativement peu coûteuse et donne de bonnes performances.

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