| http://www.w3.org/ns/prov#value | - When two or more of metals are combined, noble metals such as platinum and palladium may be combined or base metals such as nickel, cobalt, tungsten and molybdenum may be combined, or a noble metal and a base metal may be combined.Carrying a metal on the support can be performed by method by impregnation of the support in a solution containing the metal, ion exchan
|
