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Polymeric Micelle Assembly with Inorganic Nanosheets for Construction of Mesoporous Architectures with Crystallized Walls
Author(s) -
Bastakoti Bishnu Prasad,
Li Yunqi,
Imura Masataka,
Miyamoto Nobuyoshi,
Nakato Teruyuki,
Sasaki Takayoshi,
Yamauchi Yusuke
Publication year - 2015
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.201410942
Subject(s) - micelle , mesoporous material , calcination , materials science , aqueous solution , chemical engineering , evaporation , propylamine , nanotechnology , chemistry , organic chemistry , catalysis , amine gas treating , physics , engineering , thermodynamics
Here we propose a novel way to construct mesoporous architectures through evaporation‐induced assembly of polymeric micelles with crystalline nanosheets. As a model study, we used niobate nanosheets exfoliated by the direct reaction of K 4 Nb 6 O 17 ⋅3 H 2 O crystals with an aqueous solution of propylamine. The electrostatic interaction between negatively charged nanosheets and positively charged polymeric micelles enable us to form composite micelles with the nanosheets. Removal of the micelles by calcination results in robust mesoporous oxides with the original crystalline structure.