Tetranuclear Cu^IICluster as the Ten Node Building Unit for the Construction of a Metal–Organic Framework for Efficient C₂H₂/CO₂Separation

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(13)

Published: Feb. 2, 2023

Abstract Rational design of high nuclear copper cluster‐based metal–organic frameworks has not been established yet. Herein, we report a novel MOF ( FJU‐112 ) with the ten‐connected tetranuclear cluster [Cu 4 (PO 3 2 μ ‐H O) (CO ] as node which was capped by deprotonated organic ligand H L (3,5‐Dicarboxyphenylphosphonic acid). With BPE (1,2‐Bis(4‐pyridyl)ethane) pore partitioner, spaces in structure were divided into several smaller cages and windows for efficient gas adsorption separation. exhibits separation performance C /CO separation, temperature‐dependent sorption isotherms further confirmed lab‐scale dynamic breakthrough experiments. The grand canonical Monte Carlo simulations (GCMC) studies show that its is contributed to strong π‐complexation interactions between molecules framework surfaces, leading more uptakes over CO molecules.

Language: Английский

---

Isoreticular Contraction of Cage-like Metal–Organic Frameworks with Optimized Pore Space for Enhanced C₂H₂/CO₂ and C₂H₂/C₂H₄ Separations

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7341 - 7351

Published: March 5, 2024

The C2H2 separation from CO2 and C2H4 is of great importance yet highly challenging in the petrochemical industry, owing to their similar physical chemical properties. Herein, pore nanospace engineering cage-like mixed-ligand MFOF-1 has been accomplished via contracting size pyridine- carboxylic acid-functionalized linkers introducing a fluoride- sulfate-bridging cobalt cluster, based on reticular chemistry strategy. Compared with prototypical MFOF-1, constructed FJUT-1 same topology presents significantly improved adsorption capacity, selective performance due reduced cage cavity size, functionalized surface, appropriate volume. introduction cubane-type tetranuclear clusters bestows exceptional stability under harsh conditions while providing multiple potential binding sites, thus rendering adequate ability for practical application as confirmed by dynamic breakthrough experiments dry humid conditions. Additionally, distinct mechanism suggested theoretical calculations which supramolecular interactions involving C–H···O, C–H···F, other van der Waals forces play critical role separation.

Language: Английский

---

Building robust metal-organic frameworks with premade ligands

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 505, P. 215690 - 215690

Published: Feb. 1, 2024

Language: Английский

---

MOF membranes for gas separations

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

Published: Jan. 1, 2025

---

MOF-Based Electrocatalysts: An Overview from the Perspective of Structural Design

Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.

Language: Английский

---

A Highly Stable Anion-Functionalized Cage-like Framework for Efficient Separation of MTO Products under Harsh Conditions

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 837 - 844

Published: Feb. 3, 2025

Language: Английский

---

Architecting Metal–Organic Frameworks at Molecular Level toward Direct Air Capture

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Escalating carbon dioxide (CO2) emissions have intensified the greenhouse effect, posing a significant long-term threat to environmental sustainability. Direct air capture (DAC) has emerged as promising approach achieving net-zero future, which offers several practical advantages, such independence from specific CO2 emission sources, economic feasibility, flexible deployment, and minimal risk of leakage. The design optimization DAC sorbents are crucial for accelerating industrial adoption. Metal-organic frameworks (MOFs), with high structural order tunable pore sizes, present an ideal solution strong guest-host interactions under trace conditions. This perspective highlights recent advancements in using MOFs DAC, examines molecular-level effects water vapor on capture, reviews data-driven computational screening methods develop molecularly programmable MOF platform identifying optimal sorbents, discusses scale-up cost DAC.

Language: Английский

---

Hybrid MOF Template‐Directed Construction of Hollow‐Structured In₂O₃@ZrO₂ Heterostructure for Enhancing Hydrogenation of CO₂ to Methanol

Small, Journal Year: 2022, Volume and Issue: 19(1)

Published: Nov. 13, 2022

Direct hydrogenation of CO2 to methanol using green hydrogen has emerged as a promising method for carbon neutrality, but qualifying catalysts represent grand challenge. In2 O3 /ZrO2 catalyst been extensively applied in synthesis due its superior activity; however, the electronic effect by strong oxides-support interactions between and ZrO2 at interface is poorly understood. In this work, abundant heterointerfaces are engineered hollow-structured @ZrO2 heterostructure through facile pyrolysis hybrid metal-organic framework precursor MIL-68@UiO-66. Owing well-defined heterointerfaces, resultant exhibits activity stability toward methanol, which can afford high selectivity 84.6% conversion 10.4% 290 °C, 3.0 MPa with space-time yield up 0.29 gMeOH gcat-1 h-1 . Extensive characterization demonstrates that there correlation -ZrO2 interaction catalytic selectivity. At electron tends transfer from surface, facilitates H2 dissociation formate (HCOO*) methoxy (CH3 O*) species methanol. This study provides an insight into -based offers appealing opportunities developing heterostructured excellent activity.

Language: Английский

---

Fluorinated metal–organic frameworks for enhanced stability and iodine adsorption selectivity under humid conditions

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 461, P. 142058 - 142058

Published: Feb. 23, 2023

Language: Английский

---

Porous organic cages for gas separations

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(21), P. 5247 - 5262

Published: Jan. 1, 2023

This review aims to provide a comprehensive overview of the recent advancements made in gas separations utilizing porous organic cages (POCs).

Language: Английский

---