Premium
Design Rules for Self‐Assembly of 2D Nanocrystal/Metal–Organic Framework Superstructures
Author(s) -
Qiu Fen,
Edison John R.,
Preisler Zdenek,
Zhang YanFang,
Li Guo,
Pan Aizhao,
Hsu ChihHao,
Mattox Tracy M.,
Ercius Peter,
Song Chengyu,
Bustillo Karen,
Brady Michael A.,
Zaia Edmond W.,
Jeong Sohee,
Neaton Jeffrey B.,
Du Shixuan,
Whitelam Stephen,
Urban Jeffrey J.
Publication year - 2018
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.201807776
Subject(s) - ligand (biochemistry) , nanocrystal , superstructure , materials science , metal organic framework , nanotechnology , self assembly , nanoparticle , chemistry , adsorption , physics , biochemistry , receptor , thermodynamics
Abstract We demonstrate the guiding principles behind simple two dimensional self‐assembly of MOF nanoparticles (NPs) and oleic acid capped iron oxide (Fe 3 O 4 ) NCs into a uniform two‐dimensional bi‐layered superstructure. This self‐assembly process can be controlled by the energy of ligand–ligand interactions between surface ligands on Fe 3 O 4 NCs and Zr 6 O 4 (OH) 4 (fumarate) 6 MOF NPs. Scanning transmission electron microscopy (TEM)/energy‐dispersive X‐ray spectroscopy and TEM tomography confirm the hierarchical co‐assembly of Fe 3 O 4 NCs with MOF NPs as ligand energies are manipulated to promote facile diffusion of the smaller NCs. First‐principles calculations and event‐driven molecular dynamics simulations indicate that the observed patterns are dictated by combination of ligand–surface and ligand–ligand interactions. This study opens a new avenue for design and self‐assembly of MOFs and NCs into high surface area assemblies, mimicking the structure of supported catalyst architectures, and provides a thorough fundamental understanding of the self‐assembly process, which could be a guide for designing functional materials with desired structure.