期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 48, 页码 10809-10816出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm02174a
关键词
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资金
- National Basic Research Program of China (973 Program) [2007CB209703]
- National Natural Science Foundation of China [206033040, 20873064]
- Young Teachers' Foundation of Anhui University of Technology [QZ201003]
In the work, a novel lysine-assisted hydrothermal process is first developed to produce urchin-like ordered Co(OH)(2) arrays, which are assembled from mesoporous Co(OH)(2) nanowires. The synergistic contributions from lysine and Cl- ions to the formation of the unique arrays was also tentatively proposed. Electrochemical results show that the unique urchin-like ordered Co(OH)(2) arrays show the ability to deliver large specific capacitance and good electrochemical stability at large current densities, which is reasonably ascribed to their ordered microstructure, hierarchical (meso-and macro-) porosity and good electronic conductivity. Moreover, the method we proposed here provides a universal green chemistry approach to large-scale production of Co(OH)(2) and even other metal hydroxides oriented arrays with hierarchical porosity for fast energy storage.
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