Two-phase photocatalysis mediated by electrochemically generated Pd nanoparticles

The properties of electrochemically generated interfacial palladium particl es as novel reductive photocatalysts for liquid I liquid reactions are intr oduced in the present contribution. The pd particles win prepared at the in terface between two immiscible electrolyte solutions (ITIES) by heterogeneo usly reducing ammonium tetrachloropalladate present in the aqueous phase by the electron donor ferrocene in 1,2-dichloroethane, As-deposited particles are shown to act as electron transfer mediators in the heterogeneous photo reduction of tetracyanoquinodimethane (TCNQ) by hydrophilic porphyrin speci es. (C) 2000 Elsevier Science S.A. All rights reserved.