Vanadium- and manganese-based metal-organic frameworks for potential environmental and catalysis applications

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216231 - 216231

Published: Sept. 25, 2024

Language: Английский

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Design and engineering of MOF/LDH hybrid nanocomposites and LDHs derived from MOF templates for electrochemical energy conversion/storage and environmental remediation: Mechanism and future perspectives

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216256 - 216256

Published: Oct. 22, 2024

Language: Английский

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Interfacial Engineering of Pillared Co(II) Metal–Organic Framework@NiMn-Layered Double Hydroxide Nanocomposite for Oxygen Evolution Reaction Electrocatalysis

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: 64(1), P. 361 - 370

Published: Jan. 2, 2025

Clean energy conversion and storage require simple, economical, effective electrode materials to achieve promising results. The development of high-performance electrocatalysts with adequate stability cost-effectiveness is essential ensure low overpotentials toward the oxygen evolution reaction (OER). Herein, a cobalt-based metal-organic framework 4,4,4-6T14 topology in combination various ratios NiMn-layered double hydroxide (Co-MOF@X%NiMn-LDH, X = 5, 10, 20, 40%) applied as an electrocatalyst for oxidation water. optimum sample, Co-MOF@20%NiMn-LDH nanocomposite, showed overpotential 174 mV at current density 10 mA cm-2 reduced Tafel slope 64 dec-1 1 M KOH, which makes it excellent candidate, significantly superior commercial IrO2 most MOF- LDH-based electrocatalysts. Chronopotentiometry tests OER over several hours confirmed that these have been sufficiently stable. Pillared MOFs can obstruct active entities from NiMn-LDH cubic agglomeration, thus facilitating mass transportation ensuring continuous exposure sites. Accordingly, synthesized composite demonstrates considerable electrocatalytic efficiency OER, consequence porous structure, external surface area, synergistic effects among Co-MOF samples.

Language: Английский

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Strategies for Designing Anti‐Chlorine Corrosion Catalysts in Seawater Splitting

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract The seawater splitting for green hydrogen production is emerging as a key research focus sustainable energy. Nevertheless, the inherent complexity of seawater, with its diverse ion composition – especially chloride ions, calcium and magnesium ions poses significant challenges in catalyst design. Designing highly active electrocatalysts that can resist corrosion during still challenge. This article presents an overview fundamental mechanisms explores issues encountered at both cathode anode electrode. then shifts to chlorine anode, examining recent advances preventing strategies. Notably, these design strategies, such anionic passivation layers, corrosion‐resistant metal doping, physical barrier situ phase transition‐driven desalination, decoupled splitting, are comprehensively investigated, all which aim enhance catalytic stability splitting. review concludes outlook on practical applications producing through

Language: Английский

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Integration of Open Metal Sites in an Amino-Functionalized Sm(III)–Organic Framework toward Enhanced Third-Order Nonlinear Optical Property

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(39), P. 18173 - 18181

Published: Sept. 13, 2024

A variety of new inorganic and organic materials have emerged to advance laser technologies optical engineering. rational design approach can contribute significantly fabricating nonlinear optically active metal-organic frameworks (MOFs) by considering the underlying structure-property linkage. Here, it has been embarked on a study novel samarium(III) MOF, ([Sm

Language: Английский

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Elevating the Optical Nonlinearity: Design, Synthesis, and Properties of a Mixed-Ligand Zinc(II) Metal–Organic Framework

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The molecular design of new compounds with enhanced third-order nonlinear optical (NLO) applications is an important research topic in the area functional materials. present study describes a 3D metal-organic framework [Zn3(μ3-bta)2(μ4-ata)2]n (abbreviated as NH2-Zn-MUM-6), generated solvothermally from multicomponent system composed zinc(II) ions and 2-aminoterephthalic acid (H2ata) 1H-benzotriazole (Hbta) linkers. Apart intricate porous structure seh-4,6-Imma topology, this MOF features good thermal stability exceptional NLO characteristics. These were investigated detail by Z-scan method, revealing remarkably high values refractive index (n2 = 30.83 × 10-8 cm2/W) absorption coefficient (β 4.06 10-4 cm/W). An extended π-conjugation both aromatic ligands, μ3-bta- μ4-ata2-, their interaction Zn centers contribute to formation highly polarizable system, thus significantly enhancing its capacity for behavior. This broadens family materials provides insights into relationship between properties amino-functionalized mixed-linker MOFs viewpoint such all-optical switching data transmission.

Language: Английский

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Interfacial engineering of NiMn-LDH@Rh(OH)3 Heterojunctions for Promoted electrocatalytic urea oxidation

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163158 - 163158

Published: April 1, 2025

Language: Английский

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Iron group elements (Fe, Co, Ni) in Electrocatalytic applications: Evaluation, characterization and prospects

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 525, P. 216343 - 216343

Published: Nov. 21, 2024

Language: Английский

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Highly Conductive Non-Calcined 2D Cu_0.3Co_0.7 Bimetallic–Organic Framework for Urea Electrolysis in Simulated Seawater

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 64(1), P. 510 - 518

Published: Dec. 20, 2024

Global clean energy demands can be effectively addressed using the promising approach of hydrogen generation combined with less consumption. Hydrogen generated, and urea-rich wastewater pollution mitigated in a low-energy manner urea oxidation reaction (UOR). This paper seeks to assemble unique electrocatalyst pristine 2D MOF, [Co(HBTC)(DMF)]n (Co-MUM-3), from 1,3,5-benzenetricarboxylate (BTC) oxidize simulated seawater. Ni foam (NF)-based working electrodes were fabricated by incorporating series heterometallic CuCo-MUM-3 frameworks (Cu0.1Co0.9-MUM-3, Cu0.2Co0.8-MUM-3, Cu0.3Co0.7-MUM-3, Cu0.4Co0.6-MUM-3), after which their application was examined. A very low required overpotential [1.26 V vs reversible electrode (RHE) 1 M KOH + 0.5 NaCl (simulated seawater) 0.33 urea] Tafel slope 112 mV dec–1 could observed for Cu0.3Co0.7-MUM-3 electrocatalyst, ensuring achievement electro-oxidation evolution reactions at corresponding 10 mA cm–2 electrocatalytic current density. relatively lower will evident compared other reported MOFs, outperforming commercial catalyst RuO2 (1.41 cm–2, 131 dec–1) considerable stability significantly high densities minimum 72 h.

Language: Английский

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Emerging aero-semiconductor 3D micro-nano-architectures: Technology, characterization and prospects for applications

Applied Surface Science Advances, Journal Year: 2025, Volume and Issue: 26, P. 100708 - 100708

Published: Jan. 31, 2025

Language: Английский

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