Tuning Hierarchical Ferric Nanostructures-Decorated Diatomite for Supercapacitors
| Autor: | Ping Gan, Kai Lin Li, Xin Yu Zhang, Dan Ning Tian, Yuxin Zhang, Debin Jiang, Jia Lin Ge, Ming Hao Wu, Xiaoying Liu |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanostructure Composite number Nanochemistry 02 engineering and technology Electrolyte 010402 general chemistry 01 natural sciences Capacitance law.invention Nanocomposites law lcsh:TA401-492 Supercapacitors General Materials Science Calcination Porous materials Hierarchical structure Supercapacitor Nanocomposite Nano Idea 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Chemical engineering lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Nanoscale Research Letters Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-6 (2018) |
| ISSN: | 1556-276X 1931-7573 |
| Popis: | FeOOH nanosheets on porous diatomite have been successfully prepared by a facile two-step hydrothermal approach for supercapacitors, and then α-Fe2O3 and γ-Fe2O3 nanostructures are obtained via calcination under different atmospheres and temperatures. The morphologies and structures of all the samples are investigated in detail to make the hierarchical architecture clear. Besides, systemic tests are carried out in 1 M Na2SO4 electrolyte to characterize the electrochemical properties of these materials. Among the iron-related composite electrodes, diatomite@FeOOH owns the highest specific capacitance (157.9 F g−1 at a current density of 0.5 A g−1) and best cycling performance (98.95% retention after 1000 cycles), which is considered to be a potential material for high-performance supercapacitors. Furthermore, the synthesizing strategy can be extended to the preparation of other metallic oxide-derived functional materials towards energy storage and conversion. Electronic supplementary material The online version of this article (10.1186/s11671-018-2822-9) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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