Self‐Reconstructed Spinel with Enhanced SO₄²⁻ Adsorption and Highly Exposed Co³⁺ From Heterostructure Boosts Activity and Stability at High Current Density for Overall Water Splitting

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

Published: Jan. 10, 2025

Abstract Developing overall water splitting non‐noble metal electrocatalysts achieving long‐term stability with high activity at industrial‐grade current density remains challenging. Herein, a self‐reconstruction strategy of Co 9 S 8 ‐Ni 3 2 /NCF is employed to fabricate Ni x 3‐x O 4 ‐Ov‐ in which partial replaced by the structure. The reconstructed ‐Ov can enhance adsorbing ability leached from initial phase compared spinel, exceeding 1000‐h oxygen evolution reaction (OER) and 600‐h 1000 mA cm −2 excellent activity. In situ Raman X‐ray photoelectron spectroscopy (XPS) results indicate that substitution for atoms enhances adsorption capacity on ‐Ov, facilitating formation high‐density 3+ active sites (400) expedited interfacial electron transfer densities. Density functional theory (DFT) calculations reveal stabilizes surface vacancies optimizes energy intermediates, thereby improving both catalytic performance. findings provide new insights into overcoming activity‐stability trade‐off contribute design

Language: Английский

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Fabrication of TiO₂/MOF Type II Heterojunction by Growth of TiO₂ on Cr-Based MOF for Enhanced Photocatalytic Hydrogen Production

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

MOF-based heterojunctions can significantly enhance the efficiency of photocatalytic hydrogen production; however, construction efficient remains a formidable challenge. In this study, we successfully developed series Type II by growing TiO2 on Cr-based MOF, thereby regulating generation, separation, and transportation photogenerated charge carriers to improve evolution performance. Among these, 23%TiO2/MIL-101(Cr) photocatalyst exhibited highest production activity, achieving 884.01 μmol g–1 in just 5 h, which is 6.8 6.0 times that pure MIL-101(Cr) TiO2, respectively. Additionally, demonstrated excellent cyclic stability. Tiny particles were proven mainly deposited surface N2 sorption isotherm analyses, transmission electron microscopy (TEM), high-resolution TEM, high-angle annular dark field scanning microscopy, etc. Characterization techniques such as situ XPS confirmed formation TiO2/MIL-101(Cr) heterostructure. Band structure analysis indicates meets thermodynamic requirements for production. Furthermore, transient photocurrent measurements, electrochemical impedance analysis, photoluminescence reveal possesses superior capabilities carrier transport, resulting from kinetic perspective. This research offers valuable insights into preparation development photocatalysts

Language: Английский

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Covalent Organic Frameworks: Synthesis, Structures, Characterizations and Progress of Photocatalytic Reduction of CO2

Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 100466 - 100466

Published: Nov. 1, 2024

Language: Английский

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Metal-organic framework/layered double hydroxide (MOF/LDH) hetero-nanosheet array for capacitive deionization

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158120 - 158120

Published: Nov. 1, 2024

Language: Английский

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Optimizing electronic synergy of atomically dispersed dual-metal sites for high-efficiency Oxygen Evolution/Reduction Reaction

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

Published: Jan. 1, 2025

An ORR and OER bifunctional catalyst (FeNi–CN), which is used as the of cathode liquid flexible quasi-solid-state rechargeable Zn–air batteries.

Language: Английский

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Enhanced CO₂ Capture and Separation with Amino Poly(carboxylic acid) Ionic Liquids@MIL-101: Tailored Functionality for Superior Performance

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

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Dynamic Performance of TEPA-impregnated Carbon Nanofibers Composites for Direct Air Carbon Capture in Fixed Bed Columns

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115747 - 115747

Published: Feb. 1, 2025

Language: Английский

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Chitosan loaded CS/GO/MoS2/Ag3PO4/Ag for synergistically enhanced photocatalytic degradation of reduced p-NP under simulated sunlight

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179494 - 179494

Published: Feb. 1, 2025

Language: Английский

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Boosting photocatalytic H2 evolution on g-C3N4 through Cu/Ni dual cocatalysts: Unraveling synergistic root on charge dynamics and *H adsorption/desorption

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163200 - 163200

Published: April 1, 2025

Language: Английский

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A Multifunctional Fe‐Based Metal–Organic Framework With Ferroptosis for Synergistic Therapy

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(5)

Published: April 8, 2025

ABSTRACT Generally, single cancer treatment is insufficient to achieve ideal therapeutic effect. Multimodal therapy has the potential overcome efficacy challenges and reveals great promise in enhancing Herein, a combination system (DOX@Fe‐PBC) based on chemotherapy, chemodynamic (CDT), ferroptosis was constructed by loading anticancer drug doxorubicin hydrochloride (DOX) into Fe‐based metal–organic framework (Fe‐PBC). In simulated tumor microenvironment, released DOX be DNA intercalator topoisomerase II inhibitor realize chemotherapy (CT) iron ions were delivered induce Fenton reaction, which boost generation of •OH, resulting enhancement effect (CDT). Meantime, could consume glutathione (GSH) reduce expression peroxidase 4 (GPX4); then, lipid peroxides (LPO) accumulated ferroptosis. DOX@Fe‐PBC provided an effective strategy CDT, treatment.

Language: Английский

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