Catalyst for selectively oxidizing carbon monoxide

   
   

A catalyst (5) for selectively oxidizing carbon monoxide, wherein a noble metal (3) and an active oxygen supply material (4) capable of oxidizing carbon monoxide are supported on a substrate (6). Favorable selective oxidation of carbon monoxide can be obtained by setting the distance between the noble metal (3) and the active oxygen supply material (4) such that the noble metal (3) is close enough to accept active oxygen from the active oxygen supply material (4), and preferably within 0.1 mm. This catalyst (5) for selectively oxidizing carbon monoxide is effective at removing carbon monoxide from a reformate gas whose main component is hydrogen and which is supplied to a fuel cell.

Un catalizador (5) para el monóxido de carbono selectivamente que oxida, en donde un metal noble (3) y un material activo de la fuente del oxígeno (4) capaz de oxidar el monóxido de carbono se apoyan en un substrato (6). La oxidación selectiva favorable del monóxido de carbono puede ser obtenida fijando la distancia entre el metal noble (3) y el material activo de la fuente del oxígeno (4) tales que el metal noble (3) está bastante cercano aceptar el oxígeno activo del material activo de la fuente del oxígeno (4), y preferiblemente a 0.1 milímetro. Este catalizador (5) para el monóxido de carbono selectivamente que oxida es eficaz en quitar el monóxido de carbono de un gas del reformate que componente principal sea hidrógeno y que se provea a una célula de combustible.

 
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