Three-dimensional (3D) flower-like hierarchical β-Ni(OH) 2 hollow architectures were synthesized by a facile hydrothermal route. The as-obtained products were well characterized by XRD, SEM, TEM (HRTEM), SAED, and DSC-TGA. It was shown that the 3D flower-like hierarchical β-Ni(OH) 2 hollow architectures with a diameter of several micrometers are assembled from nanosheets with a thickness of 10-20 nm and a width of 0.5-2.5 μm. A rational mechanism of formation was proposed on the basis of a range of contrasting experiments. 3D flower-like hierarchical NiO hollow architectures with porous structure were obtained after thermal decomposition at appropriate temperatures. UV-Vis spectra reveal that the band gap of the as-synthesized NiO samples was about 3.57 eV, exhibiting obviously red shift compared with the bulk counterpart.
CITATION STYLE
Zhu, L. P., Liao, G. H., Yang, Y., Xiao, H. M., Wang, J. F., & Fu, S. Y. (2009). Self-assembled 3D flower-like hierarchical β-Ni(OH) 2 hollow architectures and their in situ thermal conversion to NiO. Nanoscale Research Letters, 4(6), 550–557. https://doi.org/10.1007/s11671-009-9279-9
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