摘要
Three-dimensional (3D) graphene@CNTs@MnO2 (GCM) nanocomposites materials have been fabricated by a facile two-step method. The structure, morphology and electrochemical properties of the 3D nanocomposites were investigated by XRD, TG, Raman, SEM, TEM and electrochemical measurements. The 3D forest-like rGO@CNTs (GC) serves as both the backbone and ideal electron pathway for MnO2. With this sophisticated configuration, the 3D GCM nanocomposites exhibit a specific capacitance of 245 F g-1 at 0.5 A g-1, excellent cycling stability (91.4% retention after 2000 cycles at 1 A g-1) and high rate capability. These excellent capacitive performances may make the as-prepared nanocomposites as promising electrode materials for supercapacitors.
源语言 | 英语 |
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页(从-至) | 12680-12685 |
页数 | 6 |
期刊 | Ceramics International |
卷 | 41 |
期 | 10 |
DOI | |
出版状态 | 已出版 - 8 6月 2015 |