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Highly Efficient And Magnetically Recyclable Graphene-Supportedpd/Fe3o4 Nanoparticle Catalysts For Suzuki And Heck Cross-Coupling Reactions, Hany A. Elazab

Chemical Engineering

tHerein, we report a facile and efficient one-step method for the synthesis of highly active, Pd/Fe3O4nanoparticles supported on graphene nanosheets (Pd/Fe3O4/G) that exhibit excellent catalytic activityfor Suzuki and Heck coupling reactions and that can be magnetically separated from the reaction mix-ture and recycled multiple times without loss of catalytic activity. The synthesis approach is based on theMicrowave (MW)-assisted reduction of palladium and ferric nitrates in the presence of graphene oxide(GO) nanosheets using hydrazine hydrate as the reducing agent. The results provide a fundamental under-standing of the system variables by comparing the catalytic activity and recyclability of four differentcatalysts with different …