| 摘要 |
PROBLEM TO BE SOLVED: To prepare a dispersion of fine metal particles capable of forming a transparent electrically conductive film in which two or more metals are uniformly distributed over the entire film. SOLUTION: An aq. soln. (A) contg. salts of one or more metals selected from the group consisting of Au, Pt, Ir, Pd, Ag, Rh, Ru, Os, Re and Cu is mixed with an aq. soln. (B) contg. citric ions and ferrous ions in an atmosphere not substantially contg. oxygen at 25-95 deg.C under stirring to precipitate fine metal particles in the mixed soln. When two or more metals are precipitated, fine metal particles in which these metals are alloyed in the same particle are formed and every particle has the same metal compsn.
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