Facile Synthesis and in situ TEM Observation of Nanoporous Pd for Enhanced Catalytic Applications

Abstract

of main observation and conclusion A facile, efficient and green photochemical synthetic approach has been used to prepare sponge-like porous Pd nanoparticles. Obtained by ultraviolet irradiation using a K 2 PdCl 4 precursor solution, the final products exhibited three dimensionally interconnected porous structures made up of ~3.6 nm sized Pd nanoparticles. In situ liquid cell TEM results indicated such porous structures are in a dynamic stable state when the particles are distributed in aqueous solution. The porous Pd nanoparticles exhibited electrochemical active surface area (ECSA) of up to 43 m 2 www.cjc.wiley-vch.de

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