Metal alloy for electrochemical oxidation reactions and method of production thereof
AssigneeBASF Fuel Cell GmbH
InventorsLixin Cao, Yu-Min Tsou, Emory De Castro
Life of this patent
Estimating the term…
Abstract
A method of producing a finely divided ruthenium-platinum alloy catalyst comprising: (i) forming a mixture of platinum β-diketone and ruthenium β-diketone on a carbon support, (ii) both, platinum β-diketone and ruthenium β-diketone having a decomposition temperature within 20° C. of each other, (iii) decomposing said platinum β-diketone and ruthenium β-diketone on a carbon support at a temperature of at least 260° C. in the absence of a reducing agent (iv) followed by a reduction effected with a hydrogen containing gas mixture and a method from oxidizing methanol.
Claims7
A method of producing a finely divided ruthenium-platinum alloy catalyst comprising:
- (i) forming a mixture of platinum β-diketone and ruthenium β-diketone on a carbon support,
- (ii) both, platinum β-diketone and ruthenium β-diketone having a decomposition temperature within 20° C. of each other,
- (iii) decomposing said platinum β-diketone ruthenium β-diketone on a carbon support at a temperature of at least 260° C. in the absence of a reducing agent
- (iv) followed by a reduction effected with a hydrogen containing gas mixture.
A method of producing a ruthenium-platinum alloy catalyst comprising forming a mixture of platinum β-diketone and ruthenium β-diketone on a carbon support, both platinum β-diketone and ruthenium β-diketone having a decomposition temperature within 20° C. of each other, decomposing said platinum β-diketone and ruthenium β-diketone on a carbon support at a temperature of at least 260° C. and after equilibrium is reached at the final temperature, the mixture is reduced with a hydrogen containing gas mixture which is only added at a temperature of at least 260° C.
Dependencies are inferred from the claim text.