Journal of The Electrochemical Society · 1971 · 33 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceElectrochemistrySurface ChemistrySurface ScienceElectroless PlatingPhotocatalysisPhotochemistrySurface CatalysisSurface ModificationSurface OxidationCatalytic Surface ReactionsChemical Reduction MechanismsElectrocatalytic Surface ReactionsElectrochemical Surface ReactionsElectroless DepositionImmersionPhotocatalytic Surface Reactions
Surface deposits containing hydrated Sn(II) species are generated when substrates are immersed in stannous chloride solutions, and then rinsed in water. These deposits, after a later immersion in an aqueous solution of , are capable of activating electroless plating baths to produce a metal deposit on the substrate. The Sn(II) species, however, can readily be photo‐oxidized by exposure to ultraviolet light in air, yielding Sn(IV) and thereby destroying the latent catalytic surface. Thus, selective electroless metal deposits on a variety of substrates may be generated by exposure through an appropriate mask.