Improving electron and ion transport by constructing 3D graphene nanosheets sandwiched between porous carbon nanolayers produced from resorcinol-formaldehyde resin for high-performance supercapacitor electrodes

Electron microscopy pictures, including SEM and TEM, are original photos only marked by rulers, and cropped into squares. All the dotted and line pictures in the paper are based on the original data after the unified unit, and the Origin software is used for drawing. http://doi.org/10.57760/sciencedb.j00125.00001