Oxygen Vacancy-Fe2O3@polyaniline Composites Directly Grown on Carbon Cloth as a High Stable Electrode for Symmetric Supercapacitors
| Autor: | Zhaokun Yang, Kaijie Dong, Dongjian Shi, Mingqing Chen, Jiwei Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Supercapacitor
Materials science Polymers and Plastics Annealing (metallurgy) chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance 0104 chemical sciences chemistry.chemical_compound chemistry Electrode Polyaniline Materials Chemistry In situ polymerization Composite material 0210 nano-technology Porosity Carbon |
| Zdroj: | Journal of Inorganic and Organometallic Polymers and Materials. 31:3894-3903 |
| ISSN: | 1574-1451 1574-1443 |
| Popis: | Herein, we fabricated oxygen vacancy-Fe2O3@polyaniline (O-Fe2O3@PANI) composites directly grown on surface of carbon cloth via successively hydrothermal process, annealing process, chemical reduction, and in situ polymerization. Polyaniline (PANI) is fabricated in situ on oxygen vacancy-Fe2O3 (O-Fe2O3), and forms a porous PANI skeleton at the same time, thus forming a hierarchical structure of O-Fe2O3 particles connected by conductive skeleton. The designed O-Fe2O3@PANI not only shows enhanced cycling stability (90% after 10,000 cycles at 10 A g−1), but also exhibits an improved specific capacitance (309 F g−1 at 0.5 A g−1). Furthermore, the symmetrical supercapacitor (SSC) assembled by O-Fe2O3@PANI presents high energy density of 12.125 Wh kg−1 at high power density of 250 W kg−1 and notable cycling life (100% retention over 10,000 cycles). The results demonstrate that the O-Fe2O3@PANI electrode is promising as electrode material for supercapacitors. |
| Databáze: | OpenAIRE |
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