A facile synthesis of PdCo bimetallic hollow nanospheres and their application to Sonogashira reaction in aqueous media

PdCo bimetallic hollow nanospheres with a diameter of about 80 nm were for the first time synthesized in polyethylene glycol solution. This new Pd-containing bimetallic hollow nanostrueture was successfully applied to catalysis of the Sonogashira reaction, which reveals obvious advantages such as environmentally friendly reaction conditions (the reaction proceeded in water), the recyclability of the catalyst, simple experimental operation and high yields.