A catalyst member formed of a substrate configured for gas flow
therethrough, a base metal catalytic component disposed in a base metal
catalytic layer on the substrate, and a rhodium catalytic material
disposed in a rhodium layer. The base metal catalytic component is formed
of a base metal; namely, nickel, cobalt, or a combination of at least one
of the foregoing base metals. The catalyst member is made by depositing a
base metal catalytic component on a substrate configured for gas flow
therethrough, and depositing a rhodium catalytic material over the base
metal catalytic component.