Patent ID: 9163041
Filing Date: 2015-10-20
Classification: B01J,C07F

Abstract:
1. An oxidation catalyst comprising a particulate carbon support, a first metal, and platinum, the support having at its surface metal particles comprising the first metal and platinum, wherein the first metal is selected from the group consisting of cobalt, copper, iron, and combinations thereof, and: the platinum distribution within at least one of said first metal and platinum-containing particles as characterized by EDX line scan analysis produces a platinum signal that varies by no more than about 25% across a scanning region having a dimension that is at least about 70% of the largest dimension of the at least one particle and wherein first metal and platinum-containing particles at the surface of the carbon support comprise a core comprising the first metal and a shell at least partially surrounding the core and comprising platinum, the shell having a thickness of no more than two platinum atoms.