Method for preparing fuel cell electrode catalyst and solid...

Details Method for preparing fuel cell electrode catalyst and solid... Method for preparing fuel cell electrode catalyst and solid...

H - Electricity

01

M

H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 4/90 (2006.01) H01M 4/92 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2732240

According to the present invention, the catalyst performance of a chelate catalyst comprising a complex of a macrocyclic compound such as a porphyrin derivative is improved. Also, the following method is provided: a method for preparing a fuel cell electrode catalyst comprising a nitrogen-containing metal complex in which a metallic element is coordinated with a macrocyclic organic compound, such method comprising the steps of: adding tin oxalate to the nitrogen-containing metal complex; and baking a mixture of the nitrogen-containing metal complex and tin oxalate in an inert gas atmosphere, wherein elution of metal tin is carried out via acid treatment.

Selon la présente invention, les performances de catalyse d'un catalyseur chélate comprenant un complexe d'un composé macrocyclique tel qu'un dérivé de porphyrine sont améliorées. L'invention porte également sur le procédé suivant : un procédé de préparation d'un catalyseur d'électrode de pile à combustible comprenant un complexe métallique contenant de l'azote dans lequel un élément métallique est coordonné avec un composé organique macrocyclique, lequel procédé comprend les étapes consistant à : ajouter de l'oxalate d'étain au complexe métallique contenant de l'azote; et cuire un mélange du complexe métallique contenant de l'azote et de l'oxalate d'étain dans une atmosphère de gaz inerte, une élution de l'étain métallique étant réalisée par traitement acide.

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