Fuel Cell System

摘要

A fuel cell system includes one or more fuel cell stacks. The fuel cell stack(s) include a first group of membrane electrode assemblies and a second group of membrane electrode assemblies, wherein the first and second groups of membrane electrode assemblies are connected in series such that a feed stream supplied to the first group is subsequently supplied to the second group. The anodes of the membrane electrode assemblies of the first group include an electrocatalyst for the electrochemical oxidation of carbon monoxide and can reduce the concentration of carbon monoxide in a feed stream comprising carbon monoxide before it is supplied to the membrane electrode assemblies of the second group.