A catalyst
coated membrane (CCM) comprising an
anode catalyst layer having a first catalyst layer composed of a non-supported catalyst and a second catalyst layer composed of a supported catalyst, a
cathode catalyst layer composed of a supported catalyst, and an
electrolyte membrane interposed between the
anode catalyst layer and a
cathode catalyst layer, the first catalyst layer of the
anode catalyst layer being disposed adjacent to the
electrolyte membrane; a
membrane electrode assembly (MEA) comprising the catalyst
coated membrane; a method of preparing the
membrane electrode assembly; and a fuel
cell comprising the
membrane electrode assembly, are provided. The CCM, which comprises a bilayered
anode catalyst layer including the first catalyst layer composed of a non-supported catalyst and the second catalyst layer composed of a supported catalyst, exhibits reduced electrical resistance and
interfacial resistance, and has increased catalyst availability. The use of the CCM and an MEA having the same results in a decrease in the
interfacial resistance between the electrodes and the
electrolyte membrane, a decrease in the amount of the catalyst used in the
electrode catalyst layer, and a decrease in the thickness deviation in the
electrode layers. The fuel
cell employing the MEA exhibits maximal activity of the supported catalyst, and has improved
cell characteristics such as output
voltage, output density, efficiency, and the like.