Proton Conduction in Zirconium-Based Metal–Organic Frameworks for Advanced Applications

ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Zirconium-based metal-organic frameworks (Zr-MOFs) have emerged as a promising class of crystalline porous materials, attracting significant interest in the field proton conduction due to their exceptional chemical stability, structural flexibility, and functional tunability. Notably, proton-conducting Zr-MOFs show immense potential for diverse advanced technological applications. In this Spotlight on Applications paper, we provide an overview spotlight recent progress utilization exchange membranes membrane fuel cells (PEMFCs), light-responsive systems pumps, sensors formic acid detection. Furthermore, also discussed challenges, future prospects, opportunities promoting application Zr-MOFs.

Язык: Английский

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Switching from Molecules to Functional Materials: Breakthroughs in Photochromism With MOFs

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 7, 2024

Abstract Photochromic materials with properties that can be dynamically tailored as a function of external stimuli are rapidly expanding field driven by applications in areas ranging from molecular computing, nanotechnology, or photopharmacology to programable heterogeneous catalysis. Challenges arise, however, when translating the rapid, solution‐like response stimuli‐responsive moieties solid‐state due intermolecular interactions imposed through close packing bulk solids. As result, integration photochromic compounds into synthetically porous matrices, such metal‐organic frameworks (MOFs), has come forefront an emerging strategy for material development. This review highlights how core principles reticular chemistry (on example MOFs) play critical role performance, surpassing limitations previously observed solution solid state. The symbiotic relationship between photoresponsive and focus on synthesis creates avenues toward tailorable photoisomerization kinetics, directional energy charge transfer, switchable gas sorption, synergistic chromophore communication is discussed. not only focuses recent cutting‐edge advancements development, but also novel, vital‐to‐pursue pathways multifaceted functional realms energy, technology, biomedicine.

Язык: Английский

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Inherent Ultrahigh Proton Conductivity of Two Highly Stable COOH-Functionalized Hafnium-Based Metal–Organic Frameworks

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Although there has been some recent interest in the proton conductivity (σ) of highly stable carboxyl metal–organic frameworks (MOFs) made tetravalent metal ions, given their potential applications fuel cells and electrochemical sensing, research on MOFs constructed by hafnium(IV) ions needs to be expanded significantly. Based this, we used two common easily prepared phenylpoly(carboxylic acid) ligands, 1,2,4-phenyltricarboxylic acid 1,2,4,5-phenyltetracarboxylic acid, react with hafnium tetrachloride, respectively, creating porous hafnium(IV)-based MOFs, UiO-66-COOH-Hf (1) UiO-66-(COOH)2-Hf (2), same structure as UiO-66-Hf but different numbers free carboxylic groups. A series stability assays revealed that had excellent structural rigidity, including thermal water stability. More crucially, alternating current impedance experiments demonstrate σ varies positively humidity temperature, reaching up 10–3 S·cm–1 (1: 2.83 × 2: 4.35 S·cm–1) under right conditions (98% relative 100 °C). The latter roughly doubles former, which is due difference number groups, confirmed analysis conduction mechanism investigation. high intrinsic lays a solid foundation for future application affords new inspiration developing high-performance proton-conductive materials.

Язык: Английский

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Inorganic–organic hybrid cobalt spinel oxides for catalyzing the oxygen evolution reaction

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 12, 2025

Fully triggering the deep-seated potential of traditional nanomaterials, such as classic spinel family, is paramount importance in field materials science, which yet believed to heavily depend on advanced conceptual designs and synthetic strategies. Herein, a type inorganic–organic hybrid oxide designed using π-conjugated azobenzene single-tooth coordination method overcome their stubborn problems moderate activity phase instability electrocatalytic reactions. Taking Co3O4 nanocubes pre-catalyst, after subtle etching cube surfaces, some oxygen atoms tetrahedral Co–O are replaced selectively linked weakly polar azo-extended units (π*–N=N–π*) via electrophilic carboxyl groups. The π-conjugation structure suppresses covalency competition between octahedral fields, successfully preventing transition during process improving durability. This study not only expands family but also provides useful guidelines for developing functional materials. Unlocking nanomaterials like oxides crucial catalytic evolution reaction. Here, authors report an that enhances both structural stability through method.

Язык: Английский

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Programmable electroanalysis enabling computable bioelectronics

Chemical Engineering Journal, Год журнала: 2024, Номер 487, С. 150392 - 150392

Опубликована: Март 13, 2024

Язык: Английский

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Multicomponent Quasi-Solid-State Polymer Electrolyte Incorporating MOFs and Halloysite Nanotubes for Enhanced Sodium Metal Battery Performance

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(21), С. 10196 - 10202

Опубликована: Окт. 31, 2024

Solid-state sodium metal batteries are among the most promising next-generation energy storage devices. However, developing competent solid-state electrolytes for these remains a significant challenge. Herein, we introduce design quasi-solid-state polymer electrolyte that enhances battery performance. This multicomponent electrolyte, designated PH-MSN-HNT, was synthesized by incorporating modified MOF particles and halloysite nanotubes (HNTs) into PVDF-HFP (PH) matrix. Due to synergistic effects of components, PH-MSN-HNT exhibits superior ion conductivity (>10–3 S cm–1) at room temperature, high Na+ transference number (0.79), wide electrochemical stability window (5.16 V). Furthermore, used as an assemble batteries, which demonstrate efficient dendrite suppression remarkable cycling performance with 98% capacity retention (108.6 mAh g–1 0.1 C) after 100 charge/discharge cycles over 1000 h.

Язык: Английский

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Synthesis of Redox-Active Terbium(III)-Based Metal–Organic Framework Crystals and Visual Fluorescence Sensing for Vanillylmandelic Acid

Crystal Growth & Design, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Язык: Английский

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Single-Crystalline Ordered Nanoporous Metal–Organic Frameworks for Lipase Immobilization and Structured Lipid Production

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(14), С. 17140 - 17150

Опубликована: Июль 17, 2024

Single-crystalline ordered macro-microporous CuBTC shows excellent mass transfer performance and has high fatty acid stability, making it highly promising as an enzyme immobilization carrier. However, its practical application is severely limited by poor water stability. To address this challenge, we introduced a ligand, 1,2,3-benzotriazole (BTA), known for hydrophobicity strong coordination with copper. A series of CuBTC-derived dual-ligand SOM-MOFs (SOM-MIXs) was successfully synthesized enhanced improved The SOM-MIXs demonstrated superior lipase immobilization, resulting in maximum increase 66.9% specific activity. the limitation that excessive addition does not further enhance carrier may lead to structural damage, sol–gel method employed coat SOM-MIX hydrophobic PDMS, leading 139.1% immobilized exhibited catalytic remarkable reusability, 90.09% activity retention after five cycles synthesis process 1-oleoyl-2-palmitoyl-3-linoleoylglycerol (OPL) acidolysis. This work highlights potential SOM-MIX@PDMS provides valuable insights into rational design postmodification metal–organic frameworks (MOFs) diverse applications.

Язык: Английский

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Construction of a Methoxy-Functionalized Pillar-Layer Metal-Organic framework for low-concentration SO2 uptake and adsorption separation

Inorganic Chemistry Communications, Год журнала: 2024, Номер unknown, С. 113174 - 113174

Опубликована: Сен. 1, 2024

Язык: Английский

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A Flexible Strategy for Enhancing Proton Conduction Through Sulfate Encapsulated Porous Metal Organic Frameworks

Опубликована: Янв. 1, 2024

Although metal-organic frameworks (MOFs) are regarded as a kind of promising candidate for proton conductors, they still face some shortcomings such poor water stability and low conductivity. Herein, we propose flexible impregnation method preparing series sulfate@MOF-1 through encapsulating ZnSO4, Ce2(SO4)3, Ce(SO4)2 into the pores MOF-1, where MOF-1 is prepared by coordination triazine ring derived organic ligands with Cu2+. The not only inherits similar crystallinity, morphology, microporous characteristics but also exhibits favorable thermal stability. relatively higher uptake retention rate, lower release rate indicate that significantly improved introduction sulfate. dissociated metal cations can form hydrated ion clusters molecules transport sites, while presence SO42- act both acceptors donors protons, which will increase conduction pathway, improve properties. resultant Ce(SO4)2@MOF-1 decent performance, its conductivity reach 4.91×10-3 S cm-1 at 323 K activation energy (Ea) 0.10 eV. These advantages be beneficial development high-performance conductors.

Язык: Английский

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