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Alumina nanopowder production from synthetic bayer liquor

Mazloumi, M ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1111/j.1551-2916.2006.01285.x
  3. Publisher: 2006
  4. Abstract:
  5. Alkoxides are the most common precursors used for the production of alumina nanopowders. These materials are, however, expensive and corrosive. This paper introduces a new method for the production of alumina nanopowders by rapid cooling of a synthetic caustic sodium aluminate solution (Bayer liquor), followed by calcination in the presence of a surface-stabilizing agent like 1,2-dihydroxy-3,5-benzene disulfonic acid disodium salt (Tiron). The powders produced are characterized by differential thermal analysis, XRD, transmission electron microscopy, scanning electron microscope, and Brunauer-Emmet-Teller. A nanopowder of α-alumina with an average crystallite size of 27.7 nm and an average particle size of 50 nm is produced. © 2006 The American Ceramic Society
  6. Keywords:
  7. Alumina ; Benzene ; Calcination ; Cooling ; Corrosive effects ; Differential thermal analysis ; Powder metals ; Scanning electron microscopy ; Solutions ; Alkoxides ; Sodium aluminates ; Synthetic Bayer liquor ; Nanostructured materials
  8. Source: Journal of the American Ceramic Society ; Volume 89, Issue 12 , 2006 , Pages 3654-3657 ; 00027820 (ISSN)
  9. URL: https://ceramics.onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2006.01285.x