Ultrastrong Electron‐Phonon Coupling in Uranium‐Organic Frameworks Leading to Inverse Luminescence Temperature Dependence DOI Creative Commons
Dong‐Hui Chen, Nina Vankova, Gautam Jha

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(11)

Published: Dec. 28, 2023

Abstract Electron‐phonon interactions, crucial in condensed matter, are rarely seen Metal–Organic Frameworks (MOFs). Detecting these interactions typically involves analyzing luminescence lanthanide‐ or actinide‐based compounds. Prior studies on Ln‐ and Ac‐based MOFs at high temperatures revealed additional peaks, but were too faint for thorough analysis. In our research, we fabricated a high‐quality, crystalline uranium‐based MOF (KIT‐U‐1) thin film using layer‐by‐layer method. Under UV light, this showed two distinct “hot bands,” indicating strong electron‐phonon interaction. At 77 K, bands absent, 300 new emission band appeared with half the intensity of main luminescence. Surprisingly, second hot emerged above 320 deviating from previous findings rare‐earth We conducted detailed ab‐initio analysis employing time‐dependent density functional theory to understand unusual behaviour identify lattice vibration responsible coupling. The KIT‐U‐1 film's hot‐band was then utilized create highly sensitive, single‐compound optical thermometer. This underscores potential high‐quality films exploiting unique lanthanides actinides advanced applications.

Language: Английский

Porous crystalline materials for memories and neuromorphic computing systems DOI

Guanglong Ding,

Jiyu Zhao,

Kui Zhou

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(20), P. 7071 - 7136

Published: Jan. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Language: Английский

Citations

101
Metal‐organic Frameworks in Semiconductor Devices DOI Creative Commons
Ranjeev Kumar Parashar, Priyajit Jash, Michael Zharnikov

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(15)

Published: Jan. 22, 2024

Abstract Metal‐organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano‐porous materials made metal‐ion‐based ‘nodes’ and organic linkers. Most the studies on MOFs largely focused porosity, chemical structural diversity, gas sorption, sensing, drug delivery, catalysis, separation applications. In contrast, much less reports paid attention to understanding tuning electrical properties MOFs. Poor conductivity (~10 −7 –10 −10 S cm −1 ), reported in earlier studies, impeded their applications electronics, optoelectronics, renewable energy storage. To overcome this drawback, MOF community has adopted several intriguing strategies for electronic The present review focuses creatively designed bulk surface‐anchored (SURMOFs) with different metal nodes (from transition metals lanthanides), ligand functionalities, doping entities, allowing enhancement conductivity. Diverse platforms MOFs‐based device fabrications, measurements, underlying charge transport mechanisms also addressed. Overall, highlights pros cons electronics (MOFtronics), followed by an analysis future directions research, including optimization compositions, heterostructures, contacts, stacking, further relevant options which can be interest researchers result improved devices performance.

Language: Английский

Citations

22
Metal organic and covalent organic framework-based QCM sensors for environmental pollutant detection and beyond DOI

Zaynab Golshadi,

Mohammad Dinari, Alexander Knebel

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 521, P. 216163 - 216163

Published: Aug. 27, 2024

Language: Английский

Citations

18
MOF membranes for gas separations DOI
Yiming Zhang, Hang Yin,

Lingzhi Huang

et al.

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101432 - 101432

Published: Jan. 1, 2025

Citations

5
MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity DOI Creative Commons
Seungwan Seo, Seok Bin Kwon, Yangkyu Park

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(1), P. 8 - 8

Published: Jan. 3, 2025

Methane, a greenhouse gas with 21 times the global warming potential of carbon dioxide, is increasingly subject to stringent emission regulations, driving demand for high-performance methane sensors. This study proposes novel IR spectroscopy technique based on CuBDC-integrated microcantilever (CuBDC-microcantilever spectroscopy) CH4 sensing, offering exceptional sensitivity and selectivity. The metal-organic framework (MOF) CuBDC was synthesized using drop-and-dry method facilitated by an intense pulsed light technique. Characterization via scanning electron microscopy, X-ray diffraction, Fourier transform infrared confirmed successful formation microcantilever. CuBDC-microcantilever demonstrated significantly enhanced sensitivity, differential amplitude at characteristic peak approximately 13 higher than that conventional Si Moreover, limit detection determined be as low 14.05 ppm. clear separation from water acetone vapor peaks also emphasized sensor’s high These findings highlight superior selectivity proposed sensor, positioning it promising platform in industrial environmental applications.

Language: Английский

Citations

4
Recent progress in green thin film membrane based materials for desalination: Design, properties and applications DOI
Saleem Raza, Asif Hayat,

Tariq Bashir

et al.

Desalination, Journal Year: 2024, Volume and Issue: 591, P. 117973 - 117973

Published: Aug. 5, 2024

Language: Английский

Citations

17
Enhancing corrosion resistance in Mg‒based alloys through MOF‒incorporated coatings: A comprehensive review DOI Creative Commons
Arash Fattah‐alhosseini,

Zahra Sangarimotlagh,

Minoo Karbasi

et al.

Applied Surface Science Advances, Journal Year: 2024, Volume and Issue: 21, P. 100607 - 100607

Published: May 8, 2024

Mg-based alloys are used in various industrial sectors due to the unique combination of mechanical and biomedical behaviors. However, they challenging terms corrosion protection do not produce a protective oxide layer on their surface. The unregulated rate these restricts application. One strategies that can provide coating prevents direct contact corrosive media with substrates is magnesium its alloys. In recent years, MOF‒MOF-containing coatings have been investigated as means protecting metal against corrosion. results show inhibitors significantly reduced dissolution by affecting kinetics electrochemical reactions greatly increasing resistance. So, useful for resistance Also, anti-corrosion mechanisms performance MOFs matrix discussed accordingly. This review article attempts highlight importance applications enhancing

Language: Английский

Citations

15
Highly Efficient Light Helicity Detection of Enantiomers by Chiral Metal–Organic Framework Thin Films DOI
Yibo Tian, Koichi Tanaka,

Li‐Mei Chang

et al.

Nano Letters, Journal Year: 2023, Volume and Issue: 23(12), P. 5794 - 5801

Published: June 13, 2023

The potential of chiral metal-organic frameworks (MOFs) for circularly polarized (CP) optics has been largely unexplored. Herein, we have successfully deposited monolithic and highly oriented MOF thin films prepared by a layer-by-layer method (referred to as surface-coordinated films, SURMOF) fabricate CP photodetection devices distinguish enantiomers. helicity-sensitive absorption induced pair enantiopure SURMOF was found be excellent, with an anisotropy factor reaching 0.41. Moreover, the SURMOFs exhibited pronounced difference in uptake l- d-tryptophan To demonstrate these novel chirality analysis, fabricated portable sensor device that allows recognition monitoring photocurrent signals. Our findings not only introduce new concept using building blocks realizing direct photodetectors but also provide blueprint optics.

Language: Английский

Citations

23
Optimized Detection of Volatile Organic Compounds Utilizing Durable and Selective Arrays of Tailored UiO-66-X SURMOF Sensors DOI Creative Commons
Salih Okur, Tawheed Hashem, Evgenia Bogdanova

et al.

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(2), P. 622 - 630

Published: Feb. 6, 2024

Metal–organic frameworks (MOFs), with their well-defined and highly flexible nanoporous architectures, provide a material platform ideal for fabricating sensors. We demonstrate that the efficacy specificity of detecting differentiating volatile organic compounds (VOCs) can be significantly enhanced using range slightly varied MOFs. These variations are obtained via postsynthetic modification (PSM) primary framework. alter original MOF's guest adsorption affinities by incorporating functional groups into MOF linkers, which yields subtle changes in responses. responses subsequently evaluated machine learning (ML) techniques. Under severe conditions, such as high humidity acidic environments, sensor stability lifespan utmost importance. The UiO-66-X MOFs necessary durability acidic, neutral, basic environments pH values ranging from 2 to 11, thus surpassing most other similar materials. UiO-66-NH2 thin films were deposited on quartz-crystal microbalance (QCM) sensors high-temperature QCM liquid cell layer-by-layer pump method. Three different, stable surface-anchored (SURMOFs) PSM approach (X: NH2, Cl, N3) employed fabricate arrays suitable electronic nose applications. fabricated tested capability distinguish between eight VOCs. Data array processed three distinct ML techniques: linear discriminant (LDA), nearest neighbor (k-NN), neural network analysis methods. discrimination accuracies achieved nearly 100% at concentrations over 95% lower (50–100 ppm).

Language: Английский

Citations

8
Polymer-Metal Organic Frameworks: Recent Advances in Synthesis Strategies and Applications DOI Creative Commons

Sneha Rajeev,

Unnikrishnan Gopalakrishna Panicker

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Language: Английский

Citations

1