Hollow spherical LaNiO 3 supercapacitor electrode synthesized by a facile template-free method
| Autor: | Huihui You, Ming Li, Zhai Zhangjie, Shao Tianyan, Tianhui Liu, Lei Zhang |
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| Rok vydání: | 2017 |
| Předmět: |
Supercapacitor
Materials science biology Annealing (metallurgy) Mechanical Engineering Ionic bonding Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics biology.organism_classification Electrochemistry 01 natural sciences Capacitance 0104 chemical sciences Mechanics of Materials Electrode Lanio General Materials Science 0210 nano-technology Current density |
| Zdroj: | Materials Letters. 201:122-124 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2017.04.143 |
| Popis: | A simple template-free solvothermal method has been developed to synthesize perovskite LaNiO 3 with hollow spherical structure. Appropriate annealing of the LaNiO 3 precursor is crucial to form uniform hollow structure. The obtained hollow structure significantly improves the ionic and electronic transportation leading to enhanced electrochemical performance. A high specific capacitance of 422 F g −1 has been achieved at a current density of 1 A g −1 with good cyclic stability. This facile method sets up a new synthesis route for novel perovskite oxides with hollow structure. |
| Databáze: | OpenAIRE |
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