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

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 performancewith a high specific capacitance of 702.75 F g(-1) at 1 A g(-1) and remarkable cycling stability.