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Structural Studies of WO 3 ‐Catalysed Mullite
Author(s) -
Wu J.,
Lin H.,
Li J.,
Long L.,
Li J.,
Guo G.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800008
Subject(s) - mullite , materials science , tungstate , catalysis , isotropy , chemical engineering , sol gel , mineralogy , nanotechnology , composite material , metallurgy , ceramic , chemistry , organic chemistry , optics , physics , engineering
In this study, ammonium tungstate (N 5 H 37 W 6 O 24 ·H 2 O) was employed as catalyst resource of WO 3 . Large quantities of nonstoichiometric mullite nanocolumns or isotropic particles could be synthesized by a simple sol‐gel technique respectively through adjusting the concentration of catalyst. Detail structural characterizations suggested that the amount of isotropic particles and growth direction of mullite nanocolumns had great relation to the concentration of catalyst.