Abstract
As an ideal electrode material with excellent physical and chemical properties, graphene has been widely concerned in electrocatalysis and electroanalytical applications. It may be limited by the great in the electrochemical application areas due to its irreversible agglomeration. However, it is well realized that graphene oxide can provide a new way to separate graphene sheets for the reason of its good hydrophilic characteristic and also that the preparation of graphene oxide usually is simple and easy. But the electron transmission capacity of the modified interface based on graphene oxide would be further decreased due to its oxygen-containing groups, which are not benefited for the eletrocatalysis and electrochemical sensors with high sensitivity. Additionally, oxygen-containing groups of graphene oxide can be reduced by using some reduction methods so as to restore, a more perfect graphene structure with planar conjugated, which will further improve the conductivity and adjust the band gap of graphene o