Synthesis of porous Cu7.2S4 sub-microspheres by an ion exchange method for high-performance supercapacitors
| Autor: | Jianguo Bu, Wanxi Zhang, Jicai Liang, Kai-Yuan Zhou, Jia-Ang Liu, Peng Sun, Guangyi Chen |
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| Rok vydání: | 2016 |
| Předmět: |
Supercapacitor
Materials science Morphology (linguistics) Ion exchange General Chemical Engineering Analytical chemistry 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Capacitance 0104 chemical sciences Microsphere Chemical engineering Electrode 0210 nano-technology Porosity |
| Zdroj: | RSC Advances. 6:16832-16837 |
| ISSN: | 2046-2069 |
| Popis: | The porous Cu7.2S4 sub-microspheres were synthesized by ion exchange reaction using Cu2O as a precursor. The morphology and structure of the obtained samples were characterized by XRD, SEM, and TEM analysis in detail and the formation mechanism was studied. The pseudo-capacitive properties were evaluated by CV and galvanostatic charge–discharge tests in 6 M KOH solution. The as-prepared porous Cu7.2S4 sub-microspheres electrode has a specific capacitance of 491.5 F g−1 at 1 A g−1 and exhibits good electrochemical performance as an electrode material for supercapacitors. |
| Databáze: | OpenAIRE |
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