MECHANISM OF FORMATION OF POROUS AL2O3 AL COMPOSITES IN HYDROTHERMAL CONDITIONS/

Authors
TIKHOV SF SALANOV AN PALESSKAYA YV SADYKOV VA KUSTOVA GN LITVAK GS RUDINA NA ZAIKOVSKII VA TSYBULYA SV
Citation
Sf. Tikhov et al., MECHANISM OF FORMATION OF POROUS AL2O3 AL COMPOSITES IN HYDROTHERMAL CONDITIONS/, Reaction kinetics and catalysis letters, 64(2), 1998, pp. 301-308
Citations number
7
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
64
Issue
2
Year of publication
1998
Pages
301 - 308
Database
ISI
SICI code
0133-1736(1998)64:2<301:MOFOPA>2.0.ZU;2-X
Abstract
Main features of the formation of porous composites by hydrothermal tr eatment of powdered aluminium were studied by scanning electron micros copy, TEM, XPD, IR spectroscopy of lattice modes, and thermal analysis . Hydrothermal oxidation of aluminium was shown to proceed via generat ion and subsequent oriented growth of well-crystallized boehmite plate lets, whose subsequent dehydration yields gamma-alumina. Relation betw een the degree of the metal oxidation and specific surface area /crush ing strength of the composites was analyzed.