Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed graphene.

ABSTRACT: This work reports the rational design of MnO_x nanorods on 3D crushed reduced graphene oxide (MnO_x/C-rGO) by chemical reduction of Ni-incorporated graphene oxide (GO) followed by chemical etching to remove Ni. The resulting MnO_x/C-rGO composite synergistically integrates the electronic properties and geometry structure of MnO_x and 3D C-rGO. As a result, MnO_x/C-rGO shows a significantly higher specific capacitance (C_sp) of 863 F g^-1 than MnO_x/2D graphene sheets (MnO_x/S-rGO) (373 F g^-1) and MnO_x (200 F g^-1) at a current density of 0.2 A g^-1. Furthermore, when assembled into symmetric supercapacitors, the MnO_x/C-rGO-based device delivers a hi

SUBMITTER: Reaz AH 

PROVIDER: S-EPMC8861250 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature