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A Mesoporous Superlattice Consisting of Alternately Stacking Interstitial Nanospace within Binary Silica Colloidal Crystals
Author(s) -
Kuroda Yoshiyuki,
Shimbo Yosuke,
Sakamoto Yasuhiro,
Wada Hiroaki,
Kuroda Kazuyuki
Publication year - 2016
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.201605027
Subject(s) - mesoporous material , colloidal crystal , materials science , superlattice , mesoporous silica , substrate (aquarium) , colloid , superstructure , stacking , chemical engineering , nanocrystal , nanoparticle , nanotechnology , crystallography , chemistry , optoelectronics , organic chemistry , physics , oceanography , engineering , geology , catalysis , thermodynamics
A novel class of nonclassical structures of mesoporous silica, namely a binary nanoparticle mesoporous superlattice (BNMS), is obtained by the assembly of silica nanospheres of different sizes into a binary colloidal crystal. The colloidal crystal has a CrB‐type structure and consists of alternate stacks of unary fcc and binary AlB 2 ‐type structures along the b axis and has four types of interstitial mesopores. The BNMS can be deposited on a substrate by dip coating to form an oriented thin film in which the direction of the superstructure ( b axis) is perpendicular to the substrate.