Metal‐Organic Frameworks: Direct Synthesis by Organic Acid‐Etching and Reconstruction Disclosure as Oxygen Evolution Electrocatalysts

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(11)

Published: Jan. 22, 2024

Abstract Metal‐organic frameworks (MOFs) have emerged as promising oxygen evolution reaction (OER) electrocatalysts. Chemically bonded MOFs on supports are desirable yet lacking in routine synthesis, they may allow variable structural and the underlying structure‐activity relationship to be disclosed. Herein, direct MOF synthesis is achieved by an organic acid‐etching strategy (AES). Using π‐conjugated ferrocene (Fc) dicarboxylic acid etching agent ligand, a series of MFc‐MOF (M=Ni, Co, Fe, Zn) nanosheets synthesized metal supports. The crystal structure studied using X‐ray diffraction low‐dose transmission electron microscopy, which quasi ‐lattice‐matched with that metal, enabling situ growth. Operando Raman attenuated total reflectance Fourier transform infrared spectroscopy disclose NiFc‐MOF features dynamic rebuilding during OER. reconstructed one showing optimized electronic structures upshifted d ‐band center, high M−O bonding state occupancy, localized electrons adsorbates indicated density functional theory calculations, exhibits outstanding OER performance fairly low overpotential (130 mV at 10 mA cm −2 ) good stability (144 h). newly established approach for reconstruction disclosure stimulate development more prudent catalysts advancing

Language: Английский

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Metal‐Organic Frameworks: Direct Synthesis by Organic Acid‐Etching and Reconstruction Disclosure as Oxygen Evolution Electrocatalysts

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(11)

Published: Jan. 22, 2024

Abstract Metal‐organic frameworks (MOFs) have emerged as promising oxygen evolution reaction (OER) electrocatalysts. Chemically bonded MOFs on supports are desirable yet lacking in routine synthesis, they may allow variable structural and the underlying structure‐activity relationship to be disclosed. Herein, direct MOF synthesis is achieved by an organic acid‐etching strategy (AES). Using π‐conjugated ferrocene (Fc) dicarboxylic acid etching agent ligand, a series of MFc‐MOF (M=Ni, Co, Fe, Zn) nanosheets synthesized metal supports. The crystal structure studied using X‐ray diffraction low‐dose transmission electron microscopy, which quasi ‐lattice‐matched with that metal, enabling situ growth. Operando Raman attenuated total reflectance Fourier transform infrared spectroscopy disclose NiFc‐MOF features dynamic rebuilding during OER. reconstructed one showing optimized electronic structures upshifted d ‐band center, high M−O bonding state occupancy, localized electrons adsorbates indicated density functional theory calculations, exhibits outstanding OER performance fairly low overpotential (130 mV at 10 mA cm −2 ) good stability (144 h). newly established approach for reconstruction disclosure stimulate development more prudent catalysts advancing

Language: Английский

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In situ semi-etching of bimetallic LDH nanosheet arrays into FeNi-LDH/MOF to boost oxygen evolution reaction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152721 - 152721

Published: June 2, 2024

Language: Английский

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Self-grown photocatalytic metal-organic frameworks on electrocatalytic NiFe layered double hydroxides as bifunctional photoelectrocatalyst for efficient overall water splitting

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 633, P. 236398 - 236398

Published: Feb. 4, 2025

Language: Английский

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Decorated NiFeOOH on high entropy perovskite oxide by interface engineering for efficient oxygen evolution and overall water splitting

Fuel, Journal Year: 2023, Volume and Issue: 357, P. 129946 - 129946

Published: Sept. 29, 2023

Language: Английский

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Tuning the interface of MIMII(OH)F@MIMII1-xS (MⅠ: Ni, Co; MⅡ: Co, Fe) by atomic replacement strategy toward high performance overall water splitting

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 655, P. 145 - 156

Published: Nov. 2, 2023

Language: Английский

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Ultrathin 2D–2D NiFe LDH/MOF heterojunction nanosheets: an efficient oxygen evolution reaction catalyst for water oxidation

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(8), P. 2489 - 2497

Published: Jan. 1, 2024

An ultrathin NiFe LDH/MOF catalyst is grown on carbon paper by an in situ self-dissociation–assembly strategy. Studies reveal that the strong electronic interaction between Fe and Ni species with rich active sites results good OER OWS performance.

Language: Английский

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NiSe synergistically enhancing FeNi bimetallic site catalysts for efficient bifunctional water electrolysis catalysts and mechanistic insights

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 580, P. 115108 - 115108

Published: April 10, 2025

Language: Английский

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Rational design of transition metal-based heterostructure electrocatalysts for high-performance oxygen evolution reaction

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 127, P. 717 - 736

Published: April 16, 2025

Language: Английский

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Trace Ru-Doped Fe@Ni Metal Aerogel with Core-shell Structure as an Efficient Catalysts for Boosting Oxygen Evolution Reaction

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180434 - 180434

Published: April 1, 2025

Language: Английский

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