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Hierarchically Mesoporous/Macroporous Metal Oxides Templated from Polyethylene Oxide Surfactant Assemblies
Author(s) -
Blin JeanLuc,
Léonard Alexandre,
Yuan ZhongYong,
Gigot Laurent,
Vantomme Aurélien,
Cheetham Anthony K.,
Su BaoLian
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200250816
Subject(s) - template , mesoporous material , materials science , funnel , oxide , metal , pulmonary surfactant , nanotechnology , chemical engineering , macropore , perpendicular , particle (ecology) , chemistry , metallurgy , organic chemistry , geology , engineering , geometry , catalysis , mathematics , oceanography
Wormhole‐like mesoporous walls are observed within macroporous metal oxides that were synthesized in one step using nonionic alkyl‐PEO surfactants as templates. The uniform macropores have a funnel‐like shape (tapered towards the center) and are arranged parallel to each other and perpendicular to the tangent of the particle surface (see micrographs). The mesochannels are interconnected with funnel‐like macrochannels.