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Morphological and Structural Evolutions of Metal–Organic Framework Particles from Amorphous Spheres to Crystalline Hexagonal Rods
Author(s) -
Lee Hee Jung,
We Junghun,
Kim Jun Oh,
Kim Dooyoung,
Cha Wonhee,
Lee Eunji,
Sohn Jeungwon,
Oh Moonhyun
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.201504873
Subject(s) - amorphous solid , porosity , materials science , morphology (biology) , rod , chemical engineering , metal organic framework , spheres , hexagonal crystal system , isophthalic acid , metal , nanotechnology , crystallography , chemistry , composite material , organic chemistry , metallurgy , medicine , alternative medicine , physics , pathology , adsorption , astronomy , biology , polyester , engineering , genetics , terephthalic acid
Compositions as well as morphologies and structures of particles are vital factors that define their properties and applications. However, the morphology and structure changes associated with the composition change of metal–organic frameworks (MOFs) are barely studied. Herein, we report the morphology and structure changes of MOF particles associated with the ratio of two organic linkers incorporated within MOF particles, when they are constructed from the reactions of In(NO 3 ) 3 in the presence of isophthalic acid (H 2 IPA) and/or 1,4‐benzenedicarboxylic acid (H 2 BDC). Two tendencies—the tendency of BDC and In 3+ to form porous crystalline hexagonal rods, and the tendency of IPA and In 3+ to form non‐porous amorphous spherical particles—compete during the formation of MOF particles. Eventually, the incorporated ratio of BDC and IPA within the MOF particles, and thus their morphology and porosity, are controlled by altering the relative amounts of H 2 BDC and H 2 IPA used during the reactions.