NOVELTY - A catalyst for a fuel cell comprises silicon compound(s) having perfluoropolyether chains, silicon compound(s) having perfluoroalkyl chains, or silicon compounds having fluoroalkyl chains.    USE - Catalyst used for membrane electrode assembly for fuel cell.    ADVANTAGE - The catalyst provides a fuel cell having increased releasing property of reaction water. It imparts better water repellency to the cathode catalyst layer to provide membrane electrode assembly that prevents flooding even at a higher current density operation.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a membrane electrode assembly comprises a cathode catalyst layer for reducing an oxidant gas, a polymer electrolyte membrane (31) and an anode catalyst layer with the polymer electrolyte membrane sandwiched between the catalyst layers, and the cathode catalyst layer exhibiting super water-repellency;    (2) a method of manufacturing an electrode membrane assembly comprising irradiating oxygen plasma with the surface of a cathode catalyst layer supported on carbon; contacting the treated surface of the catalyst layer with fluorine-containing compound(s) of formula (F(CF(CF3)-CF20)n-CF(CF3))-X-Si(OR1)3, (F(CF2CF2CF20)n)-X-Si(OR2)3, (H(CF2)n)-Y-Si(OR3)3 or (F(CF2)n)-Y-Si(OR4)3; and heating the treated catalyst layer;    (3) a fuel cell comprising unit cell(s) comprising the electrode-membrane assembly as above, a pair of gas diffusion layers each in contact with the cathode catalyst layer and the anode catalyst layer, and a pair of separators each in contact with the gas diffusion layers; and    (4) a method of manufacturing a catalyst for a fuel cell comprising irradiating a catalyst supported on carbon with oxygen plasma; contacting the treated catalyst with a silicon compound (36) of formula (F(CF(CF3)-CF20)n-CF(CF3))-X-Si(OR1)3, (F(CF2CF2CF20)n)-X-Si(OR2)3, (H(CF2)n)-Y-Si(OR3)3 or (F(CF2)n)-Y-Si(OR4)3; and heating the treated catalyst.    X = a connecting group between a perfluoropolyether chain and an alkoxysilane residue;    Y = a connecting group between a perfluoroalkyl chain and an alkoxysilane residue; and    R1, R2, R3, R4 = alkyl groups.    DESCRIPTION OF DRAWING(S) - The figure explains the structure and function of the membrane electrode assembly.    Polymer electrolyte membrane (31)    Catalyst metal (34)    Carbon carrier (35)    Silicon compound (36)    Reaction water (37)