Self-Assembled 3D Flower-Like Hierarchical β-Ni(OH)2Hollow Architectures and their In Situ Thermal Conversion to NiO

• DOI: 10.1007/s11671-009-9279-9
• Publication Date: 2009-02-26T14:53:11Z
• Authors: Lu-Ping Zhu; Gui-Hong Liao; Yang Yang; Hong-Mei Xiao; Ji-Fen Wang; Shao-Yun Fu
• Keywords: Non-blocking I/O; Nanochemistry; Selected area diffraction; Morphology; Hydrothermal Synthesis

Three-dimensional (3D) flower-like hierarchical beta-Ni(OH)(2) hollow architectures were synthesized by a facile hydrothermal route. The as-obtained products well characterized XRD, SEM, TEM (HRTEM), SAED, and DSC-TGA. It was shown that the 3D with diameter of several micrometers are assembled from nanosheets thickness 10-20 nm width 0.5-2.5 mum. A rational mechanism formation proposed on basis range contrasting experiments. NiO porous structure obtained after thermal decomposition at appropriate temperatures. UV-Vis spectra reveal band gap as-synthesized samples about 3.57 eV, exhibiting obviously red shift compared bulk counterpart.