Preparation And Research Of Nitrogen Doped Graphene Composite Gel

Graphene has become a hot research spot in the field of materials in recent years due to its excellent performance,such as high electrical conductivity,high specific surface area,high mechanical strength,and so on.It could be used in the fields of the supercapacitor,new energy battery,sewage treatment.Recently,the graphene multicomponent composite material emerge greatly,through the combination of graphene with other functional materials in order to optimized the performace of the composites.The following three aspects are studied in this paper:?1?The nitrogen-doped graphene/titanium dioxide composite and graphene/cuprous oxide compound hydrogel are prepared by hydrothermal method.The morphology,structure and photocatalytic and adsorption properties under different illumination conditions of these materials were studied in detail.?2?The nitrogen-doped graphene/TiO₂/polypyrrole composite gel materials were prepared in a simple way.The structure and morphology were detected by SEM,XRD.The electrochemical properties of gel were studied by cyclic voltammetry?CV?and chronopotentiometry?CP?.?3?The nitrogen-doped graphene/tin dioxide composite material are prepared by hydrothermal method.The morphology of composite materials were characterized by SEM,the structure of composite material were determined by XRD and other tests,and the electrochemical properties and cycle stability of the composites were tested by CV and CD.