4,934 results match your criteria mof materials

Synthesis of a 2D copper(II)-carboxylate framework having ultrafast adsorption of organic dyes.

J Colloid Interface Sci 2021 May 31;602:43-54. Epub 2021 May 31.

Department of Chemistry, GC University Lahore, 54000, Pakistan. Electronic address:

Two-dimensional (2D) coordination polymers are very interesting materials for their attractive applications. A novel 2D metal-organic framework (MOF) was derived from copper(II) and amino benzoic acid under both room temperature and solvothermal reaction conditions using different solvents. From both of the synthesis methods, an identical MOF was crystalized with monoclinic crystal system having P2/c space group. Read More

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Improved oxygen activation over metal-organic-frameworks derived and zinc-modulated [email protected] catalyst for boosting indoor gaseous formaldehyde oxidation at room temperature.

J Colloid Interface Sci 2021 May 30;601:833-842. Epub 2021 May 30.

College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China; Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, China. Electronic address:

The indoor low-concentration formaldehyde (HCHO) removal in cobalt-based catalysts is still a "hot potato". In this work, metal-organic-frameworks (MOF)-derived and Zinc (Zn)-modulated new cobalt nanoparticles catalyst ([email protected]) was designed and prepared. The [email protected] performed outstanding elimination activities for ~1 ppm HCHO at 25 °C. Read More

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Zirconium and Aluminum MOFs for Low-Pressure SO Adsorption and Potential Separation: Elucidating the Effect of Small Pores and NH Groups.

ACS Appl Mater Interfaces 2021 Jun 11. Epub 2021 Jun 11.

Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.

Finding new adsorbents for the desulfurization of flue gases is a challenging task but is of current interest, as even low SO emissions impair the environment and health. Four Zr- and eight Al-MOFs (Zr-Fum, DUT-67(Zr), NU-1000, MOF-808, Al-Fum, MIL-53(Al), NH-MIL-53(Al), MIL-53(tdc)(Al), CAU-10-H, MIL-96(Al), MIL-100(Al), NH-MIL-101(Al)) were examined toward their SO sorption capability. Pore sizes in the range of about 4-8 Å are optimal for SO uptake in the low-pressure range (up to 0. Read More

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Simultaneously enhancing redox kinetics and inhibiting the polysulfide shuttle effect using MOF-derived CoSe hollow sphere structures for advanced Li-S batteries.

Nanoscale 2021 Jun 11. Epub 2021 Jun 11.

Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China. and State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China.

Lithium-sulfur (Li-S) batteries generally suffer from a serious "shuttle effect" during the charging/discharging process, resulting in the loss of active components and sluggish redox reaction kinetics that hinder the cycle life and rate performance of the battery. To address this, CoSe/C hollow structures (CoSe/C HSs) were prepared via a simple hydrothermal strategy and used as a sulfur host for Li-S batteries. The battery with CoSe/C HSs exhibited a high initial specific discharge capacity of 1405 mA h g-1 with a coulombic efficiency of 99. Read More

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Photoinduced Electron-Transfer (PIET) Strategy for Selective Adsorption of CO2 over C2H2 in the MOF.

Angew Chem Int Ed Engl 2021 Jun 10. Epub 2021 Jun 10.

Chinese Academy of Sciences, Fujian institute of research on the structure of matter, CHINA.

Similarities in sizes, shapes, and physical properties between carbon dioxide (CO 2 ) and acetylene (C 2 H 2 ) make it a great challenge to separate the major impurity CO 2 from products in C 2 H 2 production. The use of porous materials is an appealing path to replace current very costly and energy-consuming technologies, such as solvent extraction and cryogenic distillation; however, high CO 2 /C 2 H 2 uptake ratio with minor adsorption of C 2 H 2 at standard pressure was only unexpectedly observed in scarce examples in recent years although the related research started early at 1950s, and general design strategies to realize this aim are still absent. This work has successfully developed an efficient PIET strategy and obtained the second highest CO 2 /C 2 H 2 adsorption ratio for porous materials in a proof-of-concept MOF with a photochromism-active bipyridinium zwitterion. Read More

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Orientation-Adjustable Metal-Organic Framework Nanorods for Efficient Oxygen Evolution Reaction.

ACS Appl Mater Interfaces 2021 Jun 10. Epub 2021 Jun 10.

State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, P. R. China.

A series of orientation-adjustable metal-organic framework (MOF) nanorods, CoFe(dobpdc)-I to CoFe(dobpdc)-III (dobpdc = 4,4'-dihydroxybiphenyl-3,3'-dicarboxylate), is developed on a 3D nickel foam (NF) template. By modulating the solvent composition for synthesis, the feature of MOF nanorods on the template can be varied from disorganized to a unidirectional orientation perpendicular to the NF. Well-aligned, vertically oriented CoFe(dobpdc)-III nanorods are hydrophilic and have more exposed active sites and interfacial charge transfer ability. Read More

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Engineering of Interfacial Energy Bands for Synthesis of Photoluminescent 0D/2D Coupled MOF Heterostructure with Enhanced Selectivity toward the Proton-Exchange Membrane.

ACS Appl Mater Interfaces 2021 Jun 10. Epub 2021 Jun 10.

Department of Chemical Engineering, Indian Institute of Technology Tirupati, Tirupati 517506, India.

Engineering of the interface for tuning the structural, functional, and electronic properties of materials via the formation of heterostructure composites exhibits immense potential in the current research scenario. This study reports a novel ternary composite synthesized by decoration of zero-dimensional Pd nanoparticles (NPs) and two-dimensional (2D) graphite oxide (GO) sheets in the UiO-66 metal-organic framework (MOF). A mixed matrix membrane was fabricated by incorporating this composite in the SPEEK polymer matrix, which exhibited higher selectivity compared to commercial Nafion 117. Read More

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Chiral Induction in Buckminsterfullerene Using a Metal-Organic Framework.

Angew Chem Int Ed Engl 2021 Jun 10. Epub 2021 Jun 10.

The University of Tokyo Graduate School of Engineering School of Engineering: Tokyo Daigaku Daigakuin Kogakukei Kenkyuka Kogakubu, Department of Applied Chemistry, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, JAPAN.

Chiral induction is an emerging topic of interest in various areas of chemistry because of its relationship to the elusive mechanism of spontaneous symmetry breaking in nature. Buckminsterfullerene (C60) with the shape of a highly symmetric truncated icosahedron has rarely been referred for chiral induction due to the difficult symmetry breaking. In this work, we demonstrate that a chiral metal-organic framework (MOF) structures can provide a key field for chiral induction. Read More

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Optimization of plasmonic metal structures for improving the hydrogen production efficiency of metal-organic frameworks.

Nanoscale 2021 Jun 10. Epub 2021 Jun 10.

Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.

The introduction of plasmonic metals of gold (Au) nanoparticles onto metal-organic frameworks (MOFs) has been testified as an efficient approach to boost the H2 evolution ability because the excited Au particles can generate hot electrons that can then be injected into MOFs to inhibit the recombination of charges. Generally, Au particles possess two modes of polarization, which are transverse and longitudinal polarizations. However, which of the two modes is more efficient remains unclear and is yet to be disclosed. Read More

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Hierarchical core-shell nanoplatforms constructed from [email protected] and metal-organic frameworks with excellent bilirubin removal performance.

J Mater Chem B 2021 Jun 10. Epub 2021 Jun 10.

School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China.

Hemoperfusion has become the third-generation treatment strategy for patients suffering from hyperbilirubinemia, but adsorbents used for bilirubin removal mostly face intractable problems, such as unsatisfactory adsorption performance and poor hemocompatibility. Metal-organic frameworks (MOFs) are promising adsorbents for hemoperfusion due to their high specific surface areas and easily modified organic ligands. However, their microporous properties and separation have hampered their application. Read More

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A Stable Cd(II)-Based Metal-Organic Framework: Synthesis, Structure, and Its Eu Functionalization for Ratiometric Sensing on the Biomarker 2-(2-Methoxyethoxy) Acetic Acid.

Inorg Chem 2021 Jun 9. Epub 2021 Jun 9.

School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China.

A novel two-dimensional Cd-based metal-organic framework (MOF), [Cd(pddb)HO] (), has been hydrothermally synthesized using the V-shaped ligand 4,4'-(pyridine-2,6-diyl)-dibenzoic acid (Hpddb) and structurally characterized. The framework exhibits fascinating one-dimensional in-plane channels functionalized with active pyridine-N sites. The as-synthesized exhibits excellent water and chemical stability. Read More

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A Europium-Organic Framework Sensing Material for 2-Aminoacetophenone, a Bacterial Biomarker in Water.

Inorg Chem 2021 Jun 9. Epub 2021 Jun 9.

Department of Chemistry and Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin 300071, China.

2-Aminoacetophenone () is a metabolite produced in large quantities by the pathogenic bacteria (PA), which is a biomarker for PA in water. State-of-the-art analytical techniques to detect PA usually require expensive instruments and a long analysis time which are not suitable for real-time water quality monitoring, especially for high-quality drinking water. Herein, we reported the application of a europium metal-organic framework (Eu-MOF) as a luminescent sensing material, which provides a facile, environmentally friendly and low-cost way for the fast detection of PA in water. Read More

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Insights into the Enhancement of MOF/Polymer Adhesion in Mixed-Matrix Membranes Polymer Functionalization.

ACS Appl Mater Interfaces 2021 Jun 9. Epub 2021 Jun 9.

ICGM, University of Montpellier, CNRS, ENSCM, Montpellier 34095, France.

MOF-based mixed-matrix membranes (MMMs) prepared using standard routes often exhibit poor adhesion between polymers and MOFs. Herein, we report an unprecedented systematic exploration on polymer functionalization as the key to achieving defect-free MMMs. As a case study, we explored computationally MMMs based on the combination of the prototypical UiO-66(Zr) MOF with polymer of intrinsic porosity-1 (PIM-1) functionalized with various groups including amidoxime, tetrazole, and -((2-ethanolamino)ethyl)carboxamide. Read More

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Isoreticular Chemistry of Group 13 Metal-Organic Framework Compounds Based on V-Shaped Linker Molecules: Exceptions to the Rule?

Inorg Chem 2021 Jun 9. Epub 2021 Jun 9.

Institute of Inorganic Chemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.

Following the concept of isoreticular chemistry, we carried out a systematic study on Ga-containing metal-organic frameworks (MOFs) using six V-shaped linker molecules of differing sizes, geometries, and additional functional groups. The linkers included three isophthalic acid derivatives (-HBDC-R, R = CH, OCH, NHCOCH), thiophene-2,5-dicarboxylic acid (HTDC), and two 4,4'-sulfonyldibenzoic acid derivatives (HSDBA, DPSTA). The crystal structures of seven compounds were elucidated by a combination of model building, single-crystal X-ray diffraction (SCXRD), three-dimensional electron diffraction (3D ED), and Rietveld refinements against powder X-ray diffraction (PXRD) data. Read More

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Thin-Film Nanocomposite Membrane Incorporated with Porous Zn-Based Metal-Organic Frameworks: Toward Enhancement of Desalination Performance and Chlorine Resistance.

ACS Appl Mater Interfaces 2021 Jun 9. Epub 2021 Jun 9.

Department of Chemical Engineering, College of Engineering, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.

Metal-organic framework (MOF) materials have received extensive attention for the design of advanced thin-film nanocomposite (TFN) membranes with excellent permselectivity. However, the relationship between the unique physicochemical properties and performance of engineered MOF-based membranes has yet to be extensively investigated. In this work, we investigate the incorporation of porous zinc-based MOFs (Zn-MOFs) into a polyamide active layer for the fabrication of TFN membranes on porous poly(phenylsulfone) (PPSU) support layers through an interfacial polymerization approach. Read More

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High-Throughput Discovery of Ni(IN) for Ethane/Ethylene Separation.

Adv Sci (Weinh) 2021 Jun 1;8(11):e2004940. Epub 2021 Apr 1.

Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea.

Although ethylene (C H ) is one of the most critical chemicals used as a feedstock in artificial plastic chemistry fields, it is challenging to obtain high-purity C H gas without any trace ethane (C H ) by the oil cracking process. Adsorptive separation using C H -selective adsorbents is beneficial because it directly produces high-purity C H in a single step. Herein, Ni(IN) (HIN = isonicotinic acid) is computationally discovered as a promising adsorbent with the assistance of the multiscale high-throughput computational screening workflow and Computation-Ready, Experimental (CoRE) metal-organic framework (MOF) 2019 database. Read More

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Cryo-EM structures of atomic surfaces and host-guest chemistry in metal-organic frameworks.

Matter 2019 Aug 24;1(2):428-438. Epub 2020 Mar 24.

Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA.

Host-guest interactions govern the chemistry of a broad range of functional materials, but direct imaging using conventional transmission electron microscopy (TEM) has not been possible. This problem is exacerbated in metal-organic framework (MOF) materials, which are easily damaged by the electron beam. Here, we use cryogenic-electron microscopy (cryo-EM) to stabilize the host-guest structure and resolve the atomic surface of zeolitic imidazolate framework (ZIF-8) and its interaction with guest CO molecules. Read More

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Combining Techniques (XRD, IR, and C NMR) and Gas Adsorption Measurements Reveals CO-Induced Structural Transitions and High CO/CH Selectivity for a Flexible Metal-Organic Framework JUK-8.

ACS Appl Mater Interfaces 2021 Jun 8. Epub 2021 Jun 8.

Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.

Flexible metal-organic frameworks (MOFs) are promising materials in gas-related technologies. Adjusting the material to processes requires understanding of the flexibility mechanism and its influence on the adsorption properties. Herein, we present the mechanistic understanding of CO-induced pore-opening transitions of the water-stable MOF ([Zn(oba)(pip)], oba = 4,4'-oxybis(benzenedicarboxylate), pip = 4-pyridyl-functionalized benzene-1,3-dicarbohydrazide) as well as its potential applicability in gas purification. Read More

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Photoactive Metal-Organic Frameworks for the Selective Synthesis of Thioethers: Coupled with Phosphine to Modulate Thiyl Radical Generation.

Inorg Chem 2021 Jun 8. Epub 2021 Jun 8.

Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, People's Republic of China.

Metal-organic framework (MOF) materials are intriguing photocatalysts to trigger radical-mediated chemical transformations. We report herein the synthesis and characterization of a series of isomorphic MOFs which show a novel structure, wide visible-light absorption, high chemical stability, and specific redox potential. The prepared MOFs were explored for the photoinduced single-electron oxidation of thiol compounds, generating reactive thiyl radicals to afford thioethers via a convenient thiol-olefin reaction. Read More

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Chemically Robust and Bifunctional Co(II)-Framework for Trace Detection of Assorted Organo-toxins and Highly Cooperative Deacetalization-Knoevenagel Condensation with Pore-Fitting-Induced Size-Selectivity.

ACS Appl Mater Interfaces 2021 Jun 8. Epub 2021 Jun 8.

Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.

Acute detection of assorted classes of organo-toxins in a practical environment is an important sustainable agenda, whereas cooperative and recyclable catalysis can mitigate hazards by minimizing energy requirements and reducing waste generation. We constructed an acid-/base-stable Co(II)-framework with a unique network topology, wherein unidirectional porous channels are decorated by anionic [Co(μ-OH)(COO)(HO)] secondary building units and neutral [CoN(COO)] nodes. An intense luminescent signature of the hydrolytically robust framework is harnessed for the selective, fast-responsive, and regenerable detection of two detrimental organo-aromatics, 4-aminophenol (4-AP) and 2,4,6-trinitrophenol (TNP). Read More

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An electrochemiluminescence aptasensor for diethylstilbestrol assay based on resonance energy transfer between AgPO-Cu-MOF(II) and silver nanoparticles.

Analyst 2021 Jun 8. Epub 2021 Jun 8.

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China. and Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.

In this work, a novel electrochemiluminescence (ECL) aptasensor based on the resonance energy transfer (RET) effect between Ag3PO4-Cu-MOF (ii) and silver nanoparticles (Ag NPs) is proposed. The ECL emission spectra of Ag3PO4-Cu-MOF and the ultraviolet absorption spectra of Ag NPs showed a good spectral overlap. Based on this, we designed an "on-off-on" ECL sensing strategy for the sensitive and specific detection of diethylstilbestrol (DES). Read More

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Sub-nanometer confinement enables facile condensation of gas electrolyte for low-temperature batteries.

Nat Commun 2021 Jun 7;12(1):3395. Epub 2021 Jun 7.

Department of NanoEngineering, University of California, San Diego, CA, USA.

Confining molecules in the nanoscale environment can lead to dramatic changes of their physical and chemical properties, which opens possibilities for new applications. There is a growing interest in liquefied gas electrolytes for electrochemical devices operating at low temperatures due to their low melting point. However, their high vapor pressure still poses potential safety concerns for practical usages. Read More

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Ru(bpy) encapsulated cyclodextrin based metal organic framework with improved biocompatibility for sensitive electrochemiluminescence detection of CYFRA21-1 in cell.

Biosens Bioelectron 2021 May 30;190:113371. Epub 2021 May 30.

College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, China. Electronic address:

Metal-organic frameworks (MOFs) have attracted strong interest from researchers. Here, for the first time, we report a sandwich-type electrochemiluminescent biosensor as a signal probe prepared from cyclodextrin-based MOF (CD-MOF)-encapsulated Ru(bpy). Due to the combination of the two materials, the obtained [email protected](bpy) nanocomposites exhibited excellent biocompatibility and electrochemical performance. Read More

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ZIF-67-derived N-enriched porous carbon doped with Co, Fe and CoS for electrocatalytic hydrogen evolution reaction.

Environ Res 2021 Jun 4:111474. Epub 2021 Jun 4.

Department of Nuclear Medicine (PET Center), Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; Key Laboratory of Nanobiological Technology of National Health Commission, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China. Electronic address:

Hybrid composites based on transition metal-doped materials exhibit excellent performance and stability as electrocatalysts for the hydrogen evolution reaction (HER). Thus, they could easily replace HER catalysts based on noble metals. To demonstrate this, we fabricated Co, Fe, and CoS doped N-enriched porous carbon materials (CoFeS/NC) using a simple, straightforward and quick method (involving absorption, pyrolysis and sulfidation steps), which used ZIF-67 metal-organic framework (MOF) material as a precursor. Read More

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Ultrasensitive Detection of Bacteria Using a 2D MOF Nanozyme-Amplified Electrochemical Detector.

Anal Chem 2021 Jun 7. Epub 2021 Jun 7.

State Key Laboratory of Analytical Chemistry for Life Science; School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.

Bacterial infection is one of the major causes of human death worldwide. To prevent bacterial infectious diseases from spreading, it is of critical importance to develop convenient, ultrasensitive, and cost-efficient methods for bacteria detection. Here, an electrochemical detector of a functional two-dimensional (2D) metal-organic framework (MOF) nanozyme was developed for the sensitive detection of pathogenic . Read More

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Enhancing the enzymatic inhibition performance of Cu-based metal-organic frameworks by shortening the organic ligands.

Analyst 2021 Jun 7. Epub 2021 Jun 7.

Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.

Creating more exposed active sites on the metal-organic framework (MOF) surface is crucial for enhancing the recognition ability of MOF artificial receptors. Here, a copper-based MOF Cu(im)2 (im = imidazole) was utilized to act as an artificial receptor, inhibiting the activity of α-chymotrypsin. The shortest diazole ligand reduced the distance between regenerative copper sites, creating as many active sites as possible on the MOF unit surface. Read More

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Neighboring Zn-Zr Sites in a Metal-Organic Framework for CO Hydrogenation.

J Am Chem Soc 2021 Jun 7. Epub 2021 Jun 7.

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China.

ZrZnO is active in catalyzing carbon dioxide (CO) hydrogenation to methanol (MeOH) via a synergy between ZnO and ZrO. Here we report the construction of Zn-O-Zr sites in a metal-organic framework (MOF) to reveal insights into the structural requirement for MeOH production. The Zn-O-Zr sites are obtained by postsynthetic treatment of Zr(μ-O)(μ-OH) nodes of MOF-808 by ZnEt and a mild thermal treatment to remove capping ligands and afford exposed metal sites for catalysis. Read More

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An Azobenzene-Modified Photoresponsive Thorium-Organic Framework: Monitoring and Quantitative Analysis of Reversible Photoisomerization.

Inorg Chem 2021 Jun 7. Epub 2021 Jun 7.

Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.

Monitoring and quantification of the photoresponsive behavior of metal-organic frameworks that respond to a light stimulus are crucial to establish a clear structure-activity relationship related to light regulation. Herein, we report the first azobenzene-modified photoresponsive thorium-organic framework ( with the formula [ThO(OH)(HO)] (H = ()-2'--tolyldiazenyl-1,1':4',4'-terphenyl-4,4″-dicarboxylic acid), in which the utilization of a thorium cluster as a metal node leads to one of the largest pore sizes among all the azobenzene-containing metal-organic frameworks (MOFs). The phototriggered transformation of the isomer to the isomer is monitored and characterized quantitatively by comprehensive analyses of NMR and UV spectroscopy, which reveals that the maximum isomerization ratio of in the solid state is 19. Read More

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Metal-organic framework based bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries: current progress and prospects.

Chem Sci 2020 Oct 6;11(43):11646-11671. Epub 2020 Oct 6.

Department of Materials Science and Engineering, China Jiliang University Hangzhou 310018 China

Zinc-air batteries (ZABs) are regarded as ideal candidates for next-generation energy storage equipment due to their high energy density, non-toxicity, high safety, and environmental friendliness. However, the slow oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) kinetics on the air cathode limit their efficiency and the development of highly efficient, low cost and stable bifunctional electrocatalysts is still challenging. Metal-Organic Framework (MOF) based bifunctional oxygen electrocatalysts have been demonstrated as promising alternative catalysts due to the regular structure, tunable chemistry, high specific surface area, and simple and easy preparation of MOFs, and great progress has been made in this area. Read More

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October 2020

Experimental evidence for a general model of modulated MOF nanoparticle growth.

Chem Sci 2020 Sep 28;11(42):11539-11547. Epub 2020 Sep 28.

Department of Chemistry and Biochemistry, Materials Science Institute, University of Oregon Eugene OR 97405 USA

Nanoparticles of metal-organic frameworks (nanoMOFs) boast superior properties compared to their bulk analogs, yet little is known about how common synthetic parameters dictate particle sizes. Here, we provide experimental evidence for the "seesaw" model of nanoMOF growth. Solution acidity, ligand excess, and reactant concentrations are decoupled and shown to form the key independent determinants of nanoMOF sizes, thereby validating the proposal that nanoMOFs arise from coupled equilibria involving ligand deprotonation and metal-ligand complexation. Read More

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September 2020