Premium
Nanocrystalline materials: Small 11/2009
Author(s) -
Yelamanchili Ram Sai,
Lu Yan,
Lunkenbein Thomas,
Miyajima Nobuyoshi,
Yan LiTang,
Ballauff Matthias,
Breu Josef
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200990053
Subject(s) - rutile , nanocrystalline material , materials science , nanocrystal , calcination , mesoporous material , mesoscopic physics , chemical engineering , colloid , polymer , nanotechnology , porosity , composite material , chemistry , organic chemistry , quantum mechanics , engineering , catalysis , physics
The cover picture shows a hierarchical route towards structuring nanocrystalline rutile on the mesoscale. Using spherical polyelectrolyte brushes as a template and pre‐synthesized electrostatically stabilized rutile nanocrystals, which carry a positive surface charge, as inorganic precursors, a crystalline polymer–rutile composite is formed. The template may be removed completely without loss of the mesostructure by a two‐step calcination treatment first in argon, followed by a second treatment in air. Hence, macroporous balls with mesoporous walls consisting of rutile nanocrystals are obtained. For more information, please read the Full Paper “Shaping Colloidal Rutile into Thermally Stable and Porous Mesoscopic Titania Balls” by J. Breu et al., beginning on page 1326 .