초록 ▼

Methanol tolerant catalyst materials and a method of making the same are provided. These novel catalyst materials are obtained by mixing together and heat-treating at least two different transition-metal-containing nitrogen chelates. In preferred embodiments, the nitrogen chelates comprise metallopo

Methanol tolerant catalyst materials and a method of making the same are provided. These novel catalyst materials are obtained by mixing together and heat-treating at least two different transition-metal-containing nitrogen chelates. In preferred embodiments, the nitrogen chelates comprise metalloporphyrins such as transition-metal-containing tetraphenylporphins. Preferred transition metals are iron, cobalt, nickel, copper, manganese, ruthenium, vanadium, and zinc, but could be any transition metal other than platinum or palladium. These materials offer improved catalytic oxygen reduction in the presence of methanol, as may occur at a fuel cell cathode after methanol crossover.

대표청구항 ▼

[ What is claimed is:] [1.]1. A catalyst material comprising the product obtained by mixing together and heat-treating at least two different transition-metal-containing nitrogen chelates, wherein said at least two nitrogen chelates each contain one transition metal, said transition metals are diffe

[ What is claimed is:] [1.]1. A catalyst material comprising the product obtained by mixing together and heat-treating at least two different transition-metal-containing nitrogen chelates, wherein said at least two nitrogen chelates each contain one transition metal, said transition metals are different from one another, and said transition metals are metals other than platinum or palladium.