Metal catalyst and fuel cell employing electrode including the same

A method of preparing a metal catalyst comprising a conductive catalyst material and a coating layer formed of a water repellent material on a surface of the conductive catalyst material, the method comprising:

• mixing a water repellent material and a first solvent to obtain a water repellent material solution;
• mixing a conductive catalyst material in the first solvent to obtain a conductive catalyst solution;
• dripping the conductive catalyst solution into the water repellent material solution to obtain a first mixture;
• dripping the first mixture into a second solvent to obtain a second mixture;
• and
• removing the first and second solvents by drying the second mixture.

A method of preparing an electrode comprising:

• mixing a metal catalyst, including a conductive catalyst material and a coating layer, with a binder and a solvent to obtain a composition;
• coating the composition on an electrode supporter and drying the composition to form the electrode;
• and
• treating the electrode with an acid solution,
• wherein the coating layer is formed of a water repellent material on a surface of the conductive catalyst material.

A fuel cell comprising:

• a cathode;
• an anode;
• and
• an electrolyte membrane interposed between the cathode and the anode,
• wherein at least one of the cathode and the anode comprises the metal catalyst including:
• a conductive catalyst material;
• and a coating layer formed of a water repellent material on the surface of the conductive catalyst material.