Title: Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques

Journal Article · · Nature Communications

Abstract Metal-organic layers (MOLs) are highly attractive for application in catalysis, separation, sensing and biomedicine, owing to their tunable framework structure. However, it is challenging to obtain comprehensive information about the formation and local structures of MOLs using standard electron microscopy methods due to serious damage under electron beam irradiation. Here, we investigate the growth processes and local structures of MOLs utilizing a combination of liquid-phase transmission electron microscopy, cryogenic electron microscopy and electron ptychography. Our results show a multistep formation process, where precursor clusters first form in solution, then they are complexed with ligands to form non-crystalline solids, followed by the arrangement of the cluster-ligand complex into crystalline sheets, with additional possible growth by the addition of clusters to surface edges. Moreover, high-resolution imaging allows us to identify missing clusters, dislocations, loop and flat surface terminations and ligand connectors in the MOLs. Our observations provide insights into controllable MOL crystal morphology, defect engineering, and surface modification, thus assisting novel MOL design and synthesis.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1885491
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 13; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (61)

Atomic Spatial and Temporal Imaging of Local Structures and Light Elements inside Zeolite Frameworks journal November 2019
Time-Resolved In Situ Diffraction Study of the Solvothermal Crystallization of Some Prototypical Metal-Organic Frameworks journal December 2009
Self-Supporting Metal-Organic Layers as Single-Site Solid Catalysts journal March 2016
Controlled Nucleation and Controlled Growth for Size Predicable Synthesis of Nanoscale Metal-Organic Frameworks (MOFs): A General and Scalable Approach journal May 2018
Direct Imaging of Atomically Dispersed Molybdenum that Enables Location of Aluminum in the Framework of Zeolite ZSM-5 journal December 2019
C s -Corrected STEM Imaging of both Pure and Silver-Supported Metal-Organic Framework MIL-100(Fe) journal August 2017
Characterization of atomic defects on the photoluminescence in two‐dimensional materials using transmission electron microscope journal March 2019
Two-Dimensional Metal-Organic Framework Nanosheets journal December 2016
Probing surface structure on two-dimensional metal-organic layers to understand suppressed interlayer packing journal August 2020
Z-contrast stem for materials science journal June 1989
Experimental tests on double-resolution coherent imaging via STEM journal March 1993
Ultrathin two-dimensional metal-organic framework nanosheets for functional electronic devices journal December 2018
RELION: Implementation of a Bayesian approach to cryo-EM structure determination journal December 2012
Cryo-EM Structures of Atomic Surfaces and Host-Guest Chemistry in Metal-Organic Frameworks journal August 2019
Wrinkled, rippled and crumpled graphene: an overview of formation mechanism, electronic properties, and applications journal May 2016
Imaging of intact MOF-5 nanocrystals by advanced TEM at liquid nitrogen temperature journal November 2012
Phase contrast STEM for thin samples: Integrated differential phase contrast journal January 2016
Electron ptychographic phase imaging of light elements in crystalline materials using Wigner distribution deconvolution journal September 2017
The 4D Camera – An 87 kHz Frame-rate Detector for Counted 4D-STEM Experiments journal July 2020
Two Distinct Stages of Structural Modification of ZIF-L MOF under Electron-Beam Irradiation journal June 2021
Metal–Organic Frameworks for Heterogeneous Basic Catalysis journal May 2017
In Situ, Time-Resolved, and Mechanistic Studies of Metal–Organic Framework Nucleation and Growth journal February 2018
Probing Molecular Mechanisms of Self-Assembly in Metal–Organic Frameworks journal December 2016
Superstructure of a Metal–Organic Framework Derived from Microdroplet Flow Reaction: An Intermediate State of Crystallization by Particle Attachment journal March 2019
First Direct Imaging of Giant Pores of the Metal−Organic Framework MIL-101 journal December 2005
Disclosing the Complex Structure of UiO-66 Metal Organic Framework: A Synergic Combination of Experiment and Theory journal April 2011
Metal–Organic Framework Materials as Chemical Sensors journal September 2011
Trapping Metal-Organic Framework Nanocrystals:  An in-Situ Time-Resolved Light Scattering Study on the Crystal Growth of MOF-5 in Solution journal May 2007
Revelation of the Molecular Assembly of the Nanoporous Metal Organic Framework ZIF-8 journal August 2011
A New Zirconium Inorganic Building Brick Forming Metal Organic Frameworks with Exceptional Stability
  • Cavka, Jasmina Hafizovic; Jakobsen, Søren; Olsbye, Unni
  • Journal of the American Chemical Society, Vol. 130, Issue 42, p. 13850-13851 https://doi.org/10.1021/ja8057953
journal October 2008
Insights into the Structure and Dynamics of Metal–Organic Frameworks via Transmission Electron Microscopy journal September 2020
Observing the Growth of Metal–Organic Frameworks by in Situ Liquid Cell Transmission Electron Microscopy journal June 2015
Direct Imaging of Tunable Crystal Surface Structures of MOF MIL-101 Using High-Resolution Electron Microscopy journal July 2019
Reconstruction of Three Dimensional Structures from Electron Micrographs journal January 1968
Chemically sensitive structure-imaging with a scanning transmission electron microscope journal December 1988
Design and synthesis of an exceptionally stable and highly porous metal-organic framework journal November 1999
Reticular synthesis and the design of new materials journal June 2003
Direct evidence for atomic defects in graphene layers journal August 2004
Unravelling surface and interfacial structures of a metal–organic framework by transmission electron microscopy journal February 2017
U1 snRNP regulates cancer cell migration and invasion in vitro journal January 2020
Imaging the node-linker coordination in the bulk and local structures of metal-organic frameworks journal June 2020
Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice journal January 2021
Imaging defects and their evolution in a metal–organic framework at sub-unit-cell resolution journal May 2019
Electron ptychography of 2D materials to deep sub-ångström resolution journal July 2018
Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector journal March 2019
Bulk and local structures of metal–organic frameworks unravelled by high-resolution electron microscopy journal August 2020
Single-crystal X-ray diffraction studies on structural transformations of porous coordination polymers journal January 2014
Defects and disorder in metal organic frameworks journal January 2016
Direct observations of the MOF (UiO-66) structure by transmission electron microscopy journal January 2013
Phase reconstruction using fast binary 4D STEM data journal March 2020
Three-step nucleation of metal–organic framework nanocrystals journal March 2021
Structural determination of a highly stable metal-organic framework with possible application to interim radioactive waste scavenging: Hf-UiO-66 journal September 2012
The scattering of electrons by atoms and crystals. I. A new theoretical approach journal October 1957
Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation journal January 2022
Systematic Design of Pore Size and Functionality in Isoreticular MOFs and Their Application in Methane Storage journal January 2002
Real-Time Imaging of Pt3Fe Nanorod Growth in Solution journal May 2012
Facet development during platinum nanocube growth journal August 2014
Atomic-resolution transmission electron microscopy of electron beam–sensitive crystalline materials journal January 2018
A fast image simulation algorithm for scanning transmission electron microscopy journal May 2017
The abTEM code: transmission electron microscopy from first principles journal January 2021
Accelerated cryo-EM structure determination with parallelisation using GPUs in RELION-2 journal November 2016