dimensions ranging from 10 nm to gt 1000 nm the benefit of using an unsupported metal crystallite is eliminating the requirement and limitation of the support 42 the unsupported metal crystallite however generally provides less available surface area than that of supported catalytic metal component 41 the noble metals that are suitable for use as the catalyst metal component 41 include but are not limited to ruthenium platinum palladium rhodium iridium gold silver etc the useful transition metals include but are not limited to molybdenum copper nickel manganese cobalt chromium tin tungsten etc the present invention contemplates that two and three noble or transition metals can be used in any combination as the catalytic metal component 41 in the form of a multiple metallic alloy however it is preferred that one or two noble metals and or one or two transition metals be utilized in any form of combinations as a bimetallic alloy which are demonstrated by the examples below although the catalyst metal component 41 in the anode 36 and the cathode 37 can be the same catalyst metal component 41 at the cathode 37 is preferably different from that at the anode 36 the preferred catalyst metal component 41 at the cathode 37 include platinum and platinum transition metal alloys such as pt u2014 co pt u2014 cr the preferred catalyst metal component 41 at the anode 36 is ruthenium rhodium iridium palladium platinum and their corresponding transition metal alloys the performance of eco processor 29 depends on the amount of catalyst metal component 41 used in the membrane electrode assembly which is normally represented by.