Covalent Grafting of Graphene Quantum Dots onto Stepped TiO2-Mediated Electronic Modulation for Electrocatalytic Hydrogen Evolution

The interaction between electrocatalytic active centers and their support is essential to the electrocatalytic performance, which could regulate the electronic structure of the metal centers but requires precise design. Herein, we report on covalent grafting of graphene quantum dots (GQDs) on stepped TiO