Enhanced dispersion of edge-coated precious metal catalysts

A precious metal catalyst, comprising nanocrystallites of at least one precious metal on a powder support,

• wherein:
• the precious metal is palladium metal, gold metal, or a combination thereof;
• when the precious metal comprises the palladium metal, the precious metal catalyst comprises a palladium metal catalyst comprising nanocrystallites of palladium metal having an average size of from 1 to less than 5 nm, and the palladium metal catalyst has a surface enrichment value of from at least 6.5 to at most 150;
• when the precious metal comprises the gold metal, the precious metal catalyst comprises a gold metal catalyst comprising nanocrystallites of gold metal having an average size of from 3 to less than 15 nm, and the gold metal catalyst has a surface enrichment value of from at least 3 to at most 150;
• the surface enrichment value (SEV) is determined from the following formula (I):
• SEV=(XPS wt. %−ICP wt. %)/ICP wt. %;
• (I)
• wherein XPS wt. % is the X-ray photoelectron spectroscopy (XPS) measurement and ICP wt. % is the inductively coupled plasma (ICP) measurement of the precious metal content in weight percent of said catalyst.