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Cubes of Zeolite A with an Amorphous Core
Author(s) -
Yao Jianfeng,
Li Dan,
Zhang Xinyi,
Kong ChunHua,
Yue Wenbo,
Zhou Wuzong,
Wang Huanting
Publication year - 2008
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.200802823
Subject(s) - zeolite , crystallization , nucleation , amorphous solid , aluminosilicate , materials science , chemical engineering , core (optical fiber) , shell (structure) , particle (ecology) , sodium aluminosilicate , amorphous silica , monocrystalline silicon , chemistry , crystallography , silicon , composite material , organic chemistry , metallurgy , catalysis , oceanography , engineering , geology
Zeolitic jelly‐donuts : Micron‐sized cubes of zeolite A having a monocrystalline shell and an amorphous core were synthesized by in situ crystallization of sodium aluminosilicate gel in uncrosslinked chitosan hydrogel. Formation of cubelike core–shell structures involves particle aggregation and surface‐to‐core crystallization induced by the hydrogel network, and provides a new model for zeolite nucleation and growth mechanisms.