From Ductile to Brittle: Defect-Engineered Mechanical Properties of Metal–Organic Frameworks DOI
Bing Wang, Ke Jin, Hongbiao Huang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 17(1), P. 2666 - 2677

Published: Dec. 25, 2024

The introduction of defects in metal–organic frameworks (MOFs) is an effective method to improve the performance MOFs many applications, but it also compromises mechanical properties MOFs. Thus, a comprehensive understanding defective becomes important for defect engineering Herein, using situ compression tests, we directly observe very different responses HKUST-1 with various concentrations. elastic-plastic deformation followed by ductile flattened failure found small concentration, while hyperelastic-plastic behavior accompanied brittle fracture could occur large concentration. strong dependence and behaviors crystals on concentration ascribed change their local mechanism stress distribution varying according analysis finite element molecular dynamics (MD) simulations. Our experiments MD simulations indicate significant reduction both Young's modulus yield strength growing which agrees well theoretical predictions micromechanics theory. This study expected provide more precise

Language: Английский

Effortless Fabrication of Nanofused HKUST-1 for Enhanced Catalytic Efficiency in the Cyanosilylation of Aldehyd DOI Open Access
Tian Zhao

Materials, Journal Year: 2025, Volume and Issue: 18(5), P. 1131 - 1131

Published: March 2, 2025

HKUST-1 (HKUST = Hong Kong University of Science and Technology) is one the most recognized metal-organic frameworks (MOFs) based on copper trimesate, extensively studied for a variety applications, such as gas storage, separation, adsorption, electrocatalysis, drug delivery, sensor photodegradation, etc. In this work, we introduce novel nanofused HKUST-1, referred to N-CuBTC (BTC trimesate), which has been synthesized with hydrothermal method at room temperature (typical synthesis from 80~120 °C). The resulting features an irregular particle morphology, numerous crystals clustering together edges that have fused, creating hierarchical pore structure. contrast traditional micro-sized octahedral (named M-CuBTC), displays unique clumped where are seamlessly integrated into cohesive This innovative formation significantly enhances mass transfer capabilities porosity accessibility. Consequently, demonstrates markedly improved catalytic performance in cyanosilylation aldehydes.

Language: Английский

Citations

0
Investigation of Metal-Organic Frameworks (MOFs): Synthesis, Properties, and Applications - An In-Depth Review DOI Creative Commons
Fatima Zohra Zeggai, Zouhair Ait‐Touchente, Khaldoun Bacharı

et al.

Chemical Physics Impact, Journal Year: 2025, Volume and Issue: unknown, P. 100864 - 100864

Published: March 1, 2025

Language: Английский

Citations

0
Non-destructive detection of shrimp freshness based on metal-organic framework enrichment-enhanced FTIR spectroscopy DOI
Guiyan Yang, Leizi Jiao,

Yunhai Zhou

et al.

Food Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 144426 - 144426

Published: April 1, 2025

Language: Английский

Citations

0
Plasticity of Metal–Organic Framework Crystals: Thermally Activated Collapse of Nanopores DOI
Jin Zhang, Bing Wang, Ke Jin

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(35), P. 9051 - 9057

Published: Aug. 28, 2024

Unrecoverable deformation or plasticity can be generated in crystalline metal-organic frameworks (MOFs) by compressive loading with different rates various applications. Herein, plastic behaviors of MOF HKUST-1 crystals are investigated a series

Language: Английский

Citations

0
Application of Advanced Microscopy Techniques to The Characterization of Mixed Matrix Membranes DOI
Daria Poloneeva, Jorge Gascón

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Mixed matrix membranes (MMMs) have emerged as promising materials for various separation processes due to their tunable properties, enhanced performance and reproducibility. In this review paper, we provide a comprehensive overview of the methodologies, challenges, applications associated with characterization MMMs using two advanced imaging techniques: Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) Transmission (TEM). We begin by outlining principles capabilities FIB-SEM TEM, emphasizing suitability studying microstructure, morphology, composition at nanoscale resolution. Subsequently, discuss specific challenges limitations encountered in these techniques, including sample preparation, image acquisition, data interpretation. Furthermore, diverse TEM elucidating structure-property relationships MMMs. Through illustrative examples, highlight valuable insights gained from techniques optimizing applications. Finally, propose future directions emerging trends MMM characterization, integration lasers into situ address current push boundaries design performance. Overall, provides state-of-the-art methodologies characterizing identifies key offers research aimed harnessing full potential sustainable technologies.

Language: Английский

Citations

0
From Ductile to Brittle: Defect-Engineered Mechanical Properties of Metal–Organic Frameworks DOI
Bing Wang, Ke Jin, Hongbiao Huang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 17(1), P. 2666 - 2677

Published: Dec. 25, 2024

The introduction of defects in metal–organic frameworks (MOFs) is an effective method to improve the performance MOFs many applications, but it also compromises mechanical properties MOFs. Thus, a comprehensive understanding defective becomes important for defect engineering Herein, using situ compression tests, we directly observe very different responses HKUST-1 with various concentrations. elastic-plastic deformation followed by ductile flattened failure found small concentration, while hyperelastic-plastic behavior accompanied brittle fracture could occur large concentration. strong dependence and behaviors crystals on concentration ascribed change their local mechanism stress distribution varying according analysis finite element molecular dynamics (MD) simulations. Our experiments MD simulations indicate significant reduction both Young's modulus yield strength growing which agrees well theoretical predictions micromechanics theory. This study expected provide more precise

Language: Английский

Citations

0