Title: Hydrothermal Synthesis and Thermal Decomposing Method for Synthesizing Alumina Nanorods
Abstract: Alumina nanorods were successfully prepared from the thermal decomposition of Al(OH)_3·xH_2O nano precursors obtained hydrothermally at 120℃for 10-17d,by using Al(OH)_3 and LiOH as raw materials.The as-prepared samples were characterized by TEM,HRTEM,SAED and XRD.Besides,the thermal behavior of decomposing Al(OH)_3·xH_2O precursors synthesized by hydrothermal process was studied through TGA.The results show that the as-prepared Al_2O_3 nanorods have rod-like morphology and single crystalline nature.The mechanism for the Al_2O_3 nanorods growth is agreed to Ostwald ripening and oriented attachment.Lye plays an important role in synthesizing the Al_2O_3 nanorods. As 5mol/L KOH lye displaces original LiOH,the as-prepared nanowires in the reaction have smaller morphology,with a diameter of 2nm and a length of 10-25nm.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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