Method for covering the hydrophylic solid bodies with expanded surface area with the gold coating, and the hydrophylic solid body with expanded surface area

摘要

Coating hydrophilic solid with a gold layer with extended surface, comprises immersing the surface of the solid in gold ions and hydroxylamine-containing reaction solution. The reaction solution comprises: (a) water; (b) first component comprising tetrachloride gold acid and/or salts of the acid; and (c) second component comprising hydroxylamine salts and/or their mixtures. An independent claim is also included for the hydrophilic solid, coated with the gold layer with extended surface.