Morphology controlled synthesis of battery-type NiCo2O4 supported on nickel foam for high performance hybrid supercapacitors
| Autor: | Ngo Quy Quyen, Ngo Thi Lan, Luong Trung Son, To Van Nguyen, Nguyen Van Ky, Pham Manh Thao, Tran Viet Thu, Doan Tien Phat, Nguyen Van Nghia |
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| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Supercapacitor Morphology (linguistics) Materials science Renewable Energy Sustainability and the Environment 020209 energy Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Electrochemistry Capacitance Nickel chemistry Chemical engineering 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0210 nano-technology Material properties Current density |
| Zdroj: | Journal of Energy Storage. 33:102030 |
| ISSN: | 2352-152X |
| DOI: | 10.1016/j.est.2020.102030 |
| Popis: | In this study, we successfully synthesized NiCo2O4 supported on Ni foam (NNCOs) with different morphologies by changing the synthesis conditions. The research results of electrochemical properties show that the morphologies have a strong influence on the electrochemical properties of materials. Specifically, the nanosheet-like NNCO-1 sample exhibited an enhanced specific capacity of 503.5 C g−1 at current density of 1 A g−1, ca. 134-350 % higher than that of NNCO-2, NNCO-4 (nanorod-like) and NNCO-3 (grass-like). All materials also show high stability with the ability to maintain 95 to 97% capacitance after 2000 discharge cycles at a current density of 2 A g−1. We hope that, the NNCO-1 material is promising electrode material for hybrid supercapacitor. |
| Databáze: | OpenAIRE |
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