Fast Water Transport in UTSA‐280 via a Knock‐Off Mechanism DOI Open Access

Cheng‐Hsun Hsu,

Hsin‐Yu Yu,

Ho Jun Lee

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(39)

Published: Aug. 14, 2023

Abstract Water and other small molecules frequently coordinate within metal‐organic frameworks (MOFs). These coordinated may actively engage in mass transfer, moving together with the transport molecules, but this phenomenon has yet to be examined. In study, we explore a unique water transfer mechanism UTSA‐280, where an incoming molecule can displace for transfer. We refer process as “knock‐off” mechanism. Despite UTSA‐280 possessing one‐dimensional channels, knock‐off enables movement along two axes, effectively simulating pseudo‐three‐dimensional Even relatively narrow pore width, high flux membrane. The also renders superior water/ethanol diffusion selectivity pervaporation. To validate mechanism, conducted 1 H 2 solid‐state NMR on after adsorption of deuterated water. derived potential energy diagrams from density functional theory gain atomic‐level insight into direct‐hopping mechanisms. simulation findings reveal that barrier is marginally lower than pathway, implying its role enhancing UTSA‐280.

Language: Английский

Development of the design and synthesis of metal–organic frameworks (MOFs) – from large scale attempts, functional oriented modifications, to artificial intelligence (AI) predictions DOI Creative Commons
Zongsu Han, Yihao Yang, Joshua Rushlow

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

The design and synthesis of MOFs have evolved from traditional large-scale approaches to function-oriented modifications, recently AI predictions, which save time, reduce costs, enhance the efficiency achieving target functions.

Language: Английский

Citations

19
The role of dynamic metal-ligand bonds in metal-organic framework chemistry DOI
Juan L. Obeso,

Michael T. Huxley,

Carolina Leyva

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 496, P. 215403 - 215403

Published: Aug. 28, 2023

Language: Английский

Citations

44
Chemical transformations of highly toxic H2S to promising clean energy in MOFs DOI
Juan L. Obeso,

Daniel R. Amaro,

Catalina V. Flores

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 485, P. 215135 - 215135

Published: March 22, 2023

Language: Английский

Citations

32
Dynamic metal-linker bonds in metal–organic frameworks DOI
Erik Svensson Grape, Audrey M. Davenport, Carl K. Brozek

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(5), P. 1935 - 1941

Published: Jan. 1, 2024

Metal-linker bonds serve as the “glue” that binds metal ions to multitopic organic ligands in porous materials known metal–organic frameworks (MOFs).

Language: Английский

Citations

14
Solvent-Driven Dynamics: Crafting Tailored Transformations of Cu(II)-Based MOFs DOI
Cheol Yeong Heo, Mariana L. Díaz‐Ramírez, Sun Ho Park

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(7), P. 9068 - 9077

Published: Feb. 12, 2024

Metal–organic frameworks (MOFs), a sort of crystalline porous coordination polymers composed metal ions and organic linkers, have been intensively studied for their ability to take up nonpolar gas-phase molecules such as ethane ethylene. In this context, interpenetrated MOFs, where multiple framework nets are entwined, considered promising materials capturing due relatively higher stability smaller micropores. This study explores solvent-assisted reversible strategy interpenetrate deinterpenetrate Cu(II)-based MOF, namely, MOF-143 (noninterpenetrated form) MOF-14 (doubly forms). Interpenetration was achieved using protic solvents with small molecular sizes water, methanol, ethanol, while deinterpenetration accomplished Lewis-basic solvent, pyridine. Additionally, investigates the adsorptive separation ethylene, which is significant application in chemical industry. The results showed that exhibited ethylene uptakes compared noninterpenetrated narrower Furthermore, we demonstrate pristine displayed selectivity than transformed from by identifying "fraction micropore volume" key factor influencing uptake. These findings highlight potential controlled transformations between anticipating larger MOF crystals micropores crystallinity will be more suitable selective gas capture applications.

Language: Английский

Citations

13
MOF-based catalysts: insights into the chemical transformation of greenhouse and toxic gases DOI
Juan L. Obeso, J. Gabriel Flores, Catalina V. Flores

et al.

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(68), P. 10226 - 10242

Published: Jan. 1, 2023

Metal-organic framework (MOF)-based catalysts are outstanding alternative materials for the chemical transformation of greenhouse and toxic gases into high-add-value products. MOF exhibit remarkable properties to host different active sites. The combination catalytic MOFs is mentioned in order understand their application. Furthermore, main reactions, which involve CH4, CO2, NOx, fluorinated gases, O3, CO, VOCs, H2S, highlighted. centers reaction conditions these reactions presented discussed mechanisms. Interestingly, implementing as gas-phase a great opportunity provide new alternatives enhance air quality our planet.

Language: Английский

Citations

23
Active Site Isolation and Enhanced Electron Transfer Facilitate Photocatalytic CO2 Reduction by A Multifunctional Metal–Organic Framework DOI
Zitong Wang,

Pierce Yeary,

Yingjie Fan

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(12), P. 9217 - 9223

Published: June 3, 2024

We report a multifunctional metal–organic framework (MOF) photocatalyst for the CO2 reduction reaction (CO2RR) under visible light irradiation with high efficiency (turnover number = 2638) and CO selectivity (97.0%). The short distance (6.6 Å) between bipyridine sites in MOF allows integration of Ir photosensitizers Ni catalysts proximity, thereby enhancing their electron transfer photocatalytic CO2RR. Isolation these metal centers by structure prevents deactivation, leading to 54 times higher CO2RR activity than homogeneous system allowing easy recovery use five consecutive cycles without significant loss catalytic activity.

Language: Английский

Citations

9
Research Progress of Metal–Organic Frameworks as Drug Delivery Systems DOI

Chenxin Liu,

Chaoying Tian,

Jialing Guo

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(33), P. 43156 - 43170

Published: Aug. 12, 2024

Metal-organic frameworks (MOFs) are composite crystalline materials created through the coordination of metal ions and organic ligands. MOFs have attracted extensive attention in biomedical field based on advantages internal porosity, customizable facile surface modification. This review examines utilization drug delivery systems, focusing research progress from aspects coloading intelligent responsive carriers, biological macromolecule stabilizers, self-driving micro/nanomotors, multifunctional living carriers. In addition, current challenges faces also discussed. The aims to provide a reference for further application as advanced systems.

Language: Английский

Citations

9
Benefits and complexity of defects in metal-organic frameworks DOI Creative Commons
Nora S. Portillo‐Vélez, Juan L. Obeso, J.A. de los Reyes

et al.

Communications Materials, Journal Year: 2024, Volume and Issue: 5(1)

Published: Nov. 8, 2024

Defect engineering has developed over the last decade to become an inimitable tool with which shape Metal-Organic Framework (MOF) chemistry; part of evolution in perception MOFs from perfect, rigid matrices dynamic materials whose chemistry is shaped as much by imperfections it their molecular components. However, challenges defect characterisation and reproducibility persist and, coupled as-yet opaque role for synthetic parameters formation, deny chemists full potential reticular synthesis. Herein we map broad implications defects have on MOF properties, highlight key explore remarkable ways imperfection enriches chemistry. Engineering into metal-organic frameworks a strategy grant additional properties but there are still reproducibility. Here, this Perspective presents benefits framework field.

Language: Английский

Citations

7
Lewis Acid‐Catalyzed Ring‐Opening Alcoholysis of Cyclohexene Oxide: The Role of Open Metal Sites in the Bi(III)‐based Metal‐Organic Framework SU‐101 DOI Creative Commons
Juan L. Obeso, J. Gabriel Flores, Catalina V. Flores

et al.

ChemCatChem, Journal Year: 2023, Volume and Issue: 15(13)

Published: May 15, 2023

Abstract SU‐101 was screened for the acid‐catalyzed ring‐opening alcoholysis of cyclohexene oxide. Results indicated access to open metal sites within SU‐101, a fundamental requirement (Lewis acid Bi +3 sites) this reaction. In addition, exhibited high chemical stability, demonstrated by retaining its crystalline structure after The conversion estimated be 99.8, 96.8, and 14.3 % at 40 °C methanol, ethanol, propanol, respectively. Also, an outstanding catalytic cyclability performance five cycles without losing activity.

Language: Английский

Citations

10