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Self‐catalyzed Growth of Nonstoichiometric Single‐crystal Mullite Nanocolumns
Author(s) -
Liang L.,
Li J. B.,
Lin H.,
Guo G. F.,
He M. S.
Publication year - 2007
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.200600217
Subject(s) - mullite , materials science , catalysis , crystal growth , crystallography , chemical engineering , crystal (programming language) , single crystal , nanotechnology , composite material , chemistry , organic chemistry , ceramic , programming language , computer science , engineering
The nonstoichiometric Al‐rich single‐crystal mullite nanocolumns were prepared by sol‐gel method through the self‐catalyzed growth process. The rectangular nanocolumns are straight and uniform with a width of 100–150 nm and length of 3–4 μm. Detailed structural characterizations suggested that the growth of this novel nonstoichiometric structure was induced by the self‐catalyzed process thanks to the presence of surface excess Al adlayers on mullite surfaces.