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Recrystallization‐Induced Self‐Assembly for the Growth of Cu 2 O Superstructures
Author(s) -
Shang Yang,
Shao YiMing,
Zhang DongFeng,
Guo Lin
Publication year - 2014
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.201406331
Subject(s) - recrystallization (geology) , materials science , tetrahedron , mesoporous material , nanotechnology , spheres , nanoparticle , self assembly , crystallography , chemical engineering , chemistry , catalysis , geology , organic chemistry , physics , paleontology , astronomy , engineering
The assembly of inorganic nanoparticles (NPs) into 3D superstructures with defined morphologies is of particular interest. A novel strategy that is based on recrystallization‐induced self‐assembly (RISA) for the construction of 3D Cu 2 O superstructures and employs Cu 2 O mesoporous spheres with diameters of approximately 300 nm as the building blocks has now been developed. Balancing the hydrolysis and recrystallization rates of the CuCl precursors through precisely adjusting the experimental parameters was key to success. Furthermore, the geometry of the superstructures can be tuned to obtain either cubes or tetrahedra and was shown to be dependent on the growth behavior of bulk CuCl. The overall strategy extends the applicability of recrystallization‐based processes for the guided construction of assemblies and offers unique insights for assembling larger particles into complicated 3D superstructures.