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A Single‐Crystalline Mesoporous Quartz Superlattice
Author(s) -
Matsuno Takamichi,
Kuroda Yoshiyuki,
Kitahara Masaki,
Shimojima Atsushi,
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.201600675
Subject(s) - superlattice , quartz , crystallization , materials science , nanometre , mesoporous material , amorphous solid , chemical engineering , crystal (programming language) , mesoporous silica , colloidal crystal , nanotechnology , mineralogy , colloid , crystallography , composite material , chemistry , optoelectronics , organic chemistry , catalysis , programming language , computer science , engineering
There has been significant interest in the crystallization of nanostructured silica into α‐quartz because of its physicochemical properties. We demonstrate a single‐crystalline mesoporous quartz superlattice, a silica polymorph with unprecedentedly ordered hierarchical structures on both the several tens of nanometers scale and the atomic one. The mesoporous quartz superlattice consists of periodically arranged α‐quartz nanospheres whose crystalline axes are mostly oriented in an assembly. The superlattice is prepared by thermal crystallization of amorphous silica nanospheres constituting a colloidal crystal. We found that the deposition of a strong flux of Li + only on the surface of silica nanospheres is effective for crystallization.