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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
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201600675
Subject(s) - superlattice , crystallization , quartz , materials science , nanometre , mesoporous material , chemical engineering , amorphous solid , mesoporous silica , colloidal crystal , crystal (programming language) , nanotechnology , colloid , crystallography , chemistry , composite material , organic chemistry , catalysis , optoelectronics , engineering , programming language , computer science
Abstract 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.