A high performance quasi-solid-state supercapacitor based on CuMnO2 nanoparticles
| Autor: | Shen-Ming Chen, Guorong Duan, Muhammad Arif, Lu Wang, Xiaoheng Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Supercapacitor
Materials science Renewable Energy Sustainability and the Environment Dispersity Energy Engineering and Power Technology Nanoparticle Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance 0104 chemical sciences Nanomaterials Electrode Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology Quasi-solid Mesoporous material |
| Zdroj: | Journal of Power Sources. 355:53-61 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2017.04.054 |
| Popis: | Mixed metal or transition metal oxides hold an unveiled potential as one of the most promising energy storage material because of their excellent stability, reliable conductivity, and convenient use. In this work, CuMnO2 nanoparticles are successfully prepared by a facile hydrothermal process with the help of dispersing agent cetyltrimethylammonium bromide (CTAB). CuMnO2 nanoparticles possess a uniform quadrilateral shape, small size (approximately 25 × 25 nm–35 × 35 nm), excellent dispersity, and large specific surface specific (56.9 m2 g−1) with an interparticle mesoporous structure. All these characteristics can bring benefit for their application in supercapacitor. A quasi-solid-state symmetric supercapacitor device is assembled by using CuMnO2 nanoparticles as both positive electrode and negative electrode. The device exhibits good supercapacitive performance with a high specific capacitance (272 F g−1), a maximum power density of 7.56 kW kg−1 and a superior cycling stability of 18,000 continuous cycles, indicating an excellent potential to be used in energy storage device. |
| Databáze: | OpenAIRE |
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