| 摘要 |
A catalytic body, especially for use as an anode in a fuel cell, comprises a moulding of conductive material to which platinum and ruthenium are applied. In the method of the invention, the body is first impregnated with a solution of a platinum compound (for example, platinum chloride). After drying, the platinum compound is reduced in a hydrogen atmosphere to give metallic platinum. Secondly, the ruthenium is applied by an analogous process, ruthenium chloride being the preferred compound, and reduced to the metal. The support comprises a conducting material, preferably carbon, and a water repellent material, such as PTFE. A fuel cell is exemplified, comprising the anode formed into a composite with a cathode of similar construction (but lacking ruthenium) and a cation exchange membrane sandwiched between them. The joint electrodes are shaped into a disc and are used to generate electricity from hydrogen and oxygen. |
