One-step hydrothermal amino-grafting of graphene oxide as an efficient solid base catalyst

摘要

A one-step hydrothermal route is developed to prepare amino-grafted graphene oxide as an environmentally benign heterogeneous solid base catalyst. With the developments in metal-free carbon catalysis and graphene materials, the catalytic applications of graphene and its precursor graphite oxide have been widely investigated in a variety of reactions. The most attractive property of a graphene-based material as the catalyst is its controllable surface properties allowing the function-alization of active groups. For instance, the sulfonated graphene was applied as a water-tolerant solid acid catalyst and showed a high activity in hydrolysis of ethyl acetate. It is possible to graft nitrogen atoms on the matrix of graphene sheets and thus endue the carbon solid with the surface basicity.