期刊
CRYSTAL GROWTH & DESIGN
卷 10, 期 7, 页码 2928-2933出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg901422v
关键词
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资金
- National Natural Science Foundation of China [20571044, 20971070]
- Project Fundamental and Applied Research of Tianjin
The precursors for boehmite and gamma-Al2O3, aluminum acetate hydroxide [(CH3COO)(2)Al(OH)] with various morphologies including nanoleave, nanofibers, and hierarchically nanostructured microflowers, have been successfully synthesized by an ionic liquid-assisted hydrothermal synthetic method using 1-butyl-2, 3-dimethyl imidazollium chloride ([bdmim][Cl]) as a template. The effects of the ionic liquid [bdmim][Cl] on the morphology of the precursors aluminum acetate hydroxide have been investigated systematically. The boehmite and gamma-Al2O3 nanostructures were obtained by calcining the assynthesized precursors at 300 and 600 C for 2 h, respectively, preserving the same morphology. The proposed formation mechanism of the precursors has also been investigated. The obtained products were characterized by several techniques, such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N-2 adsorption-desorption technique.
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