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Nanocrystalline α‐Al 2 O 3 Using Sucrose
Author(s) -
Das Rabindra N.,
Bandyopadhyay Amit,
Bose Susmita
Publication year - 2001
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2001.tb01024.x
Subject(s) - nanocrystalline material , transmission electron microscopy , aqueous solution , materials science , bet theory , phase (matter) , specific surface area , chemical engineering , ceramic , sucrose , nanocrystal , ion , grain size , mineralogy , aluminium nitrate , analytical chemistry (journal) , chemistry , aluminium , metallurgy , nanotechnology , chromatography , organic chemistry , adsorption , engineering , catalysis
Nanocrystalline α‐Al 2 O 3 ceramic powders have been prepared from an aqueous solution of aluminum nitrate and sucrose. Soluble Al ion‐sucrose solution forms the precursor material once it is completely dehydrated. Heat treatment of the dehydrated precursors at low temperature (600°C) results in the formation of porous single‐phase α‐Al 2 O 3 . The precursor and heat‐treated powders have been characterized by X‐ray diffraction (XRD), transmission electron microscopy (TEM), and BET surface area analysis. The phase‐pure nanocrystalline α‐Al 2 O 3 particles had an average specific surface area of >190 m 2 /g, with an average pore size between 18 and 25 nm.