| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell having its superior carbon mono-oxide toxicity resistance and capable of maintaining catalyst activity for a long period of time by employing an anode for a catalyst having a Lewis acid containing platinum or a platinum alloy and a rare earth element. SOLUTION: For an anode of a fuel cell main body, a catalyst having a Lewis acid containing platinum or a platinum alloy and one or more kinds of rare earth elements is employed. As an alloyed element in the platinum alloy, it is preferably that one or more kinds is selected from a group consisting of gold, chrome, cobalt, nickel, molybdenum, tungsten, rhenium, zinc, and tin. A composition of the platinum alloy is preferably platinum of 30 to 90 atom.% and alloyed element of 10 to 70 atom.%, and it is preferable that particle size is 1 to 20 nm in order to obtain high activity. As Lewis acid, a compound having-CF2 ,-SO3 - group is preferably coordinated against a rare earth element. As a catalyst, the Lewis acid is formed of the rare earth element and ligand, and this is produced with a method or the like contained in platinum or a platinum alloy catalyst. |
