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Nano‐corundum – Synthesis and Use as Filtration Membranes, Catalyst Carriers, Wear Resistant Coatings and Sensors
Author(s) -
Ma Hongwei,
Krell A.,
Buse F.
Publication year - 2001
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200110)24:10<1005::aid-ceat1005>3.0.co;2-0
Subject(s) - corundum , filtration (mathematics) , materials science , membrane , porosity , catalysis , thermal stability , chemical engineering , nano , nanotechnology , composite material , chemistry , organic chemistry , engineering , biochemistry , statistics , mathematics
Alumina filtration membranes and catalyst substrates are commercially available. For technically important applications requiring pore sizes ≤ 50 nm, however, existing materials are composed of transitional alumina phases (γ‐, δ‐, or θ‐Al 2 O 3 ). With regard to the limited chemical and thermal stability of these phases compared with α‐Al 2 O 3 it was the objective of the present work to provide pure corundum materials with the required porosity.