| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8012316 | Materials Letters | 2018 | 10 Pages |
Abstract
Sandwich-type hybrid structure consisting of etched nitrogen-doped graphene paper (ENGP) and flower-like MnO2 are fabricated through a three-step method. The ENGP were synthesized by vacuum assisted flow-filtration of the dicyandiamide (DCD) and graphene oxide (GO) aqueous solution through filter membrane, followed by a carbonization process, and then by an electrochemical etching method to improve the surface active-sites and wettability. The MnO2 nanoflowers consisting of multiple thin MnO2 nanosheets were anchored on both side of ENGP by electrodeposition techniques. The optimized hybrid electrodes exhibited a high specific capacitance of 368.3â¯F/g at 0.2â¯A/g, and excellent cycling performance of 98.4% capacitance retention over 3000 cycles.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xianqiang Feng, Yanhua Li, Guisen Chen, Zheng Liu, Xiaohua Ning, Aiping Hu, Qunli Tang, Xiaohua Chen,