Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1606512 | Journal of Alloys and Compounds | 2016 | 33 Pages |
Abstract
The hierarchically sea urchin-like structured reduced graphene oxide (RGO)-manganese dioxide (MnO2) nanocomposites have been assembled through an electrochemical deposition. MnO2 particles are uniformly grown and directly deposited onto the surface of three dimensional (3D) RGO. The crystalline phase, size and composition of MnO2 nanoparticles are γ phase, about 6 nm and 60 wt%, respectively. The specific capacitance of 125.93 F gâ1 of 3D RGO-MnO2 composite is higher than 38.45 F gâ1 of MnO2. The composite reveals the good rate capability of 70.29% and cyclic stability of â¼80% after 5000 cycles.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Sul Ki Park, Dong Hoon Suh, Ho Seok Park,