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Although graphene has excellent properties, it does not mean that all graphene-based devices will have high performance. Even though three-dimensional (3D) porous graphene are believed to be of great importance in many applications, the control of the microstructures and properties of this material to meet different application requirements in industrial practice remains challenging. In this report, we proposed a facile approach to tune the mophology and electrical conductivity of porous graphene during the laser-induced polyimide (PI) graphitization process. This porous graphene with mesoporous and macroporous has a large specific surface area, extremely low densities and good conductivity. Our results demonstrate a practical method to adjust structures and properties, and further benefit the various applications of porous graphene. This research also provides a promising candidate for porous, high performance and low-cost materials in the effective use of energy storage systems.

Tuning the Structures and Properties of Porous Graphene in Laser-Induced Graphitization