Catalyst, process for production of the same, and use of the...

Details Catalyst, process for production of the same, and use of the... Catalyst, process for production of the same, and use of the...

B - Operations, Transporting

01

J

B01J 27/24 (2006.01) B01J 37/08 (2006.01) H01M 4/90 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2721913

Disclosed is a catalyst which is not eroded in an acidic electrolyte or at a high voltage, and has excellent durability and high oxygen-reducing ability. The catalyst is characterized by comprising a oxycarbonitride of niobium having the following compositional formula: NbC x N y O z [wherein x, y and z represent the ratio of the number of atoms, and meet the requirements represented by the following mathematical formulae: 0.05 ~x<0.7, 0.01 ~y<0.7, 0.4~z<2.5, 1.0<x+y+z<2.56, and 4.0 ~4x+3y+2z].

La présente invention concerne un catalyseur qui ne se corrode pas dans un électrolyte acide ou à haute tension, et qui présente une excellente durabilité et une capacité de réduction de l'oxygène élevée. Le catalyseur est caractérisé en ce qu'il comprend un oxycarbonitrure de niobium ayant la formule de composition suivante : NbCxNyOz [dans laquelle x, y et z représentent le rapport du nombre d'atomes, et satisfont les conditions représentées par les formules mathématiques suivantes : 0,05=x<0,7, 0,01=y<0,7, 0,4=z<2,5, 1,0<x+y+z<2,56, et 4,0=4x+3y+2z].

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