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https://hdl.handle.net/2440/127241
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Type: | Journal article |
Title: | Carbon@NiCo₂S₄ nanorods: an excellent electrode material for supercapacitors |
Other Titles: | Carbon@NiCo(2)S(4) nanorods: an excellent electrode material for supercapacitors |
Author: | Li, L. Dai, Z. Zhang, Y. Yang, J. Huang, W. Dong, X. |
Citation: | RSC Advances: an international journal to further the chemical sciences, 2015; 5(101):83408-83414 |
Publisher: | Royal Society of Chemistry |
Issue Date: | 2015 |
ISSN: | 2046-2069 2046-2069 |
Statement of Responsibility: | Laiquan Li, Ziyang Dai, Yufei Zhang, Jun Yang, Wei Huang and Xiaochen Dong |
Abstract: | Carbon@NiCo₂S₄ nanorods were synthesized through a facile in situ hydrothermal approach using carbon supported nickel (Ni/C) nanorods as both the template and nickel source. The morphology and electrochemical properties of NiCo₂S₄ can be effectively tuned with carbon nanorods as well as the addition of hydrogen peroxide (H₂O₂) during the hydrothermal process. The carbon nanorod endows NiCo₂S₄ with rod-like morphology and good electrochemical stability during active reversible redox reactions. Moreover, the addition of H₂O₂ creates the porous structure of NiCo₂S₄, improving its electrochemically active surface area greatly, which is beneficial for efficient charge and ion transport in electrodes. Electrochemical measurements indicate that the H₂O₂ treated carbon@NiCo₂S₄ (labeled as C@NiCo₂S₄–H) nanorods present high specific capacitance (1455 F g⁻¹ at the current density of 1 A g⁻¹) and excellent cycling stability (83% retention after 2000 cycles). It is believed that other carbon-based composites with superior electrochemical behavior for supercapacitor applications can also be synthesized using the proposed method in this study. |
Rights: | This journal is © The Royal Society of Chemistry 2015 |
DOI: | 10.1039/C5RA15022A |
Published version: | http://dx.doi.org/10.1039/c5ra15022a |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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