Fabrication of macro-mesoporous zirconia-alumina materials with a 1D hierarchical structure
Liu, Erming, Locke, Ashley J., Martens, Wayde N., Frost, Ray L., & Yang, Xuzhuang (2012) Fabrication of macro-mesoporous zirconia-alumina materials with a 1D hierarchical structure. Crystal Growth and Design, 12(3), pp. 1402-1410.
A series of one dimensional (1D) zirconia/alumina nanocomposites were prepared by the deposition of zirconium species onto the 3D framework of boehmite nanofibres formed by dispersing boehmite nanofibres into butanol solution. The materials were calcined at 773K and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), N2 adsorption/desorption, infrared emission spectroscopy (IES). The results demonstrated that when the molar percentage X=100*Zr/(Al+Zr) was > 30 %, extremely long ZrO2/Al2O3 composite nanorods with evenly distributed ZrO2 nanocrystals on the surface were formed. The stacking of such nanorods gave rise to a new kind of macroporous material without the use of any organic space filler\template or other specific technologies. The mechanism for the formation of long ZrO2/Al2O3 composite nanorods was proposed in this work.
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|Item Type:||Journal Article|
|Keywords:||one dimensional (1D) nanocomposites, zirconia/alumina, nanorods, macroporous material, hierarchical structure|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering|
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 American Chemical Society|
|Copyright Statement:||This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record|
|Deposited On:||29 Mar 2012 09:00|
|Last Modified:||23 Apr 2013 20:09|
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