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Characterization and Macroscale Morphology Control of Mesoporous Alumina Molecular Sieves

Weihua Deng

出版	Iowa State University, 2001
URL	http://books.google.com.hk/books?id=_-8-OAAACAAJ&hl=&source=gbs_api

註釋

Mesoporous aluminas were produced by nonionic supramolecular templating and characterized to determine the stability of their physical structure during extended calcination at elevated temperatures. The effect of synthesis temperature on the physical structure of these materials and the resulting thermal evolution from synthesized aluminum hydroxide to transitional alumina was studied using thermogravimetric analysis. A high resolution multiple quantum magic angle spinning NMR spectroscopy method was used to quantitatively determine the evolution of the aluminum coordination during the thermal processing, The mesoporous alumina exhibited high stability upon prolonged heating, which is essential for their future applications in catalytic chemistry. Also discussed in the thesis is synthesis of mesoporous aluminas with macroscale particle morphology control.