“Brick-and-mortar” sandwiched porous carbon building constructed by metal-organic framework and graphene: Ultrafast charge/discharge rate up to 2 V s−1 for supercapacitors

The “brick-and-mortar” sandwiched porous carbon building (C-GMOF) was fabricated by using MOF-5 derived porous carbon film as “mortar” and graphene nanosheet as “brick”. As a result, the C-GMOF exhibits excellent frequency response with charge/discharge rate up to 2 V s−1, high specific capacitance of 345 F g−1, high energy density and outstanding cycling stability.237