Amorphous 3D nanoflake array-assembled porous 2D cobalt–oxalate coordination polymer thin sheets with excellent pseudocapacitive performance

Abstract

Amorphous three-dimensional (3D) nanoflake array-assembled porous 2D cobalt–oxalate coordination polymer thin sheets (CQU-Chen-OA-Co-1-1) were first synthesized by using a facile hydrothermal route under electro-magnetic stirring. The resulting material exhibited excellent pseudocapacitive performance with a high specific capacitance of 702.75 F g⁻¹ at 1 A g⁻¹ and remarkable cycling stability.