Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (06): 1115-1119.doi: 10.3866/PKU.WHXB20080636

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Preparation and Characterization of Novel Alumina Hollow Spheres

PANG Li-Ping; ZHAO Rui-Hong; GUO Fen; CHEN Jian-Feng; CUI Wen-Guang   

  1. Key Laboratory for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, P. R. China; School of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China; College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, P. R. China
  • Received:2008-01-23 Revised:2008-03-10 Published:2008-06-03
  • Contact: GUO Fen

Abstract: Novel size-tunable alumina hollow spheres were successfully prepared using colloidal carbon spheres as templates and aluminum nitrate as alumina source. The samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD). The influences of the synthesis conditions such as reaction time, reaction temperature, and the concentration of Al(NO3)3 were studied. According to the experiment, the synthesized alumina hollow spheres with a narrow size distribution showed tunable shell thickness and uniform shell. The morphology of the alumina hollow spheres was influenced mainly by the reaction temperature.

Key words: Colloidal carbon spheres, Templates, Alumina, Hollow spheres


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