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Preparation of Mesoscale Hollow Spheres of TiO 2 and SnO 2 by Templating Against Crystalline Arrays of Polystyrene Beads
Author(s) -
Zhong Z.,
Yin Y.,
Gates B.,
Xia Y.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(200002)12:3<206::aid-adma206>3.0.co;2-5
Subject(s) - materials science , dispersity , polystyrene , spheres , mesoscale meteorology , homogeneous , ceramic , nanotechnology , chemical engineering , composite material , polymer , polymer chemistry , physics , climatology , astronomy , engineering , geology , thermodynamics
Mesoscale hollow spheres of ceramic materials can be prepared by templating an appropriate sol–gel precursor against a crystalline array of monodisperse polystyrene beads, as demonstrated here. Spheres of well‐controlled, uniform size and homogeneous wall thickness result, as can be seen from the Figure, which shows the TEM cross‐sectional view of an array of TiO 2 hollow spheres.