la0634185_si_002.pdf (5.89 MB)
Copolymer-Controlled Homogeneous Precipitation for the Synthesis of Porous Microfibers of Alumina
journal contribution
posted on 2007-04-10, 00:00 authored by Peng Bai, Fabing Su, Pingping Wu, Likui Wang, Fang Yin Lee, Lu Lv, Zi-feng Yan, X. S. ZhaoMesoporous aluminas with a uniform fibrous morphology were synthesized using a copolymer-controlled homogeneous
precipitation method under hydrothermal conditions. Scanning electron microscopy, X-ray diffraction, solid-state
magic-angle spinning nuclear magnetic resonance, transmission electron microscopy, thermogravimetric analysis,
nitrogen adsorption, Fourier transform infrared spectrometry, and elemental analysis techniques were used to characterize
the samples. The effect of various synthesis conditions on the morphology and mesoporous structure of the alumina
fibers was investigated. Such porous alumina microfibers may find applications in nanotechnology and catalysis. They
can also be used as advanced high-temperature composite materials and templates for fabrication of fibrous materials
of various compositions, such as carbon, transition-metal oxides, and polymers.
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thermogravimetric analysistransmission electron microscopyalumina microfiberssynthesis conditionsmorphologymaterialprecipitation methodScanning electron microscopyhydrothermal conditionsalumina fibersmesoporous structureAluminaMesoporous aluminasanalysis techniquesnitrogen adsorptionPorous Microfibers
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