Primary and tertiary amines bifunctional graphene oxide for cooperative catalysis

In this study, primary and tertiary amine bifunctional graphene oxide (GO–NH2–NEt2) was prepared by silylanization of graphene oxide (GO) with amine-terminal silanes. The obtained GO–NH2–NEt2 was characterized by infrared spectrum (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), high-resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS). Systematic studies demonstrated the GO–NH2–NEt2 had excellent catalytic activities and 100% selectivity in the classic trans-β-nitrostyrene forming reaction.