Due to its special monolayer structure

graphene has interesting physical and chemical properties.Over the past ten years

graphene studies have has produced great effects on physics

chemistry

and material science and engineering

and have become one of the high-profile international frontiers and research focuses.The controllable preparation

assembly and functional applications of graphenes are essential for graphene studies.In recent years

researchers are constantly exploring the new ways for preparation and application of graphenes and their functional composites.Among them

the composite of graphene and conductive polymer polypyrrole (PPy) has attracted much attention in particular

and a series of valuable insight into the new graphene/polymer composites has been achieved.In this report

the recent important advances in controllable synthesis of graphene/PPy composites are summarized and some of the new developments in the field of electrochemical applications

including catalysis

actuator

supercapacitors

sensors

and so on

are discussed.