Covalent Organic Framework Bifunctional Catalyst for Glucose Oxidation Reaction Coupled Nitrate to Ammonia Electrolysis

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(5), P. 2484 - 2491

Published: May 2, 2024

Ammonia is a crucial feedstock for the chemical industry, carbon-free energy source, and safe source hydrogen storage. The electrochemical nitrate reduction reaction (NO3RR) one promising strategy greener ammonia synthesis due to high water solubility low N═O bond dissociation of NO3–. More importantly, polluted Herein, we rationally designed bifunctional covalent organic framework catalyst (Ru-Tta-Dfp) having triazine- pyridine-rich backbone with inherent Ru-nanocluster sites control both NO3– H+ diffusion interactions achieve selective conversion monitored by operando Raman spectroscopy (93.93% faradaic efficiency yield rate 1.16 mg h–1cm–2 at −0.4 V vs RHE). Moreover, have developed first time couple anodic glucose oxidation (GOR) facilitate cathodic NO3RR reduced consumption value-added products electrodes. Notably, NO3RR-GOR full cell studies generate ∼2.5 times higher NH3 than that NO3RR-OER.

Language: Английский

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Electronic transfer and structural reconstruction in porous NF/FeNiP-CoP@NC heterostructure for robust overall water splitting in alkaline electrolytes

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 675, P. 357 - 368

Published: July 4, 2024

Language: Английский

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One-Step Eco-Friendly and Ultrasonic Fabrication of Bimetallic Co/Ni-MOF for Improved Efficiency in Overall Water Splitting

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: 1329, P. 141379 - 141379

Published: Jan. 9, 2025

Language: Английский

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High-entropy metal phosphides as cost-effective electrocatalysts for the oxygen evolution reaction: The case of NiCoFeMnSnP and NiCoFeMnMoP

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Recent advances of ruthenium-based materials for acidic oxygen evolution reaction: from catalyst design to proton exchange membrane water electrolysers

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23297 - 23314

Published: Jan. 1, 2024

In this review paper, we emphatically summarize the improvement strategies of Ru-based acidic OER catalysts and their application in PEMWEs. Further challenges directions development are also speculated.

Language: Английский

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Delaminated Vanadium Carbide MXene Supported Two-Dimensional (2D) CoNH₂BDC MOF Hybrid for Enhanced Water Splitting

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Water splitting has been regarded as one of the most favorable practices in sustainable energy production technologies. Metal organic frameworks (MOFs) have recognized potent candidates electrocatalysts due to their high porosity, faster charge transfer, tunable structure, and large surface area. MOFs with electrically conductive 2D MXene nanosheets can significantly result enhanced electrocatalytic activity for both OER HER. In this work, cobalt aminoterephthalic acid MOF (CoNH2BDC) was combined vanadium carbide (V2C) via a one-step solvothermal reaction strategy. Credit goes porosity area CoNH2BDC; electrical conductivity hydrophilicity V2C CoNH2BDC/V2C, transfer across CoNH2BDC-V2C interface. Among series catalysts varying ratios MOF, catalyst that showed best HER alkaline medium CoNBDC/VC3, it attained current density 10 mA cm–2 at 145 mV 102 Vs. RHE HER, Tafel slope value 50 mV/dec 55 We believe work is demonstration highly efficient performance construction such hybrid materials pave new pathways regard developing green production.

Language: Английский

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History

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 25

Published: Jan. 1, 2025

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The Recent Progress of High-Entropy Layered Double Hydroxides and High-Entropy Amorphous Materials for Water Electrocatalysis

DeCarbon, Journal Year: 2025, Volume and Issue: unknown, P. 100110 - 100110

Published: April 1, 2025

Language: Английский

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Theoretical analysis of the effect of isotropy on the effective diffusion coefficient in the porous and agglomerated phase of the electrodes of a PEMFC

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 27, 2024

Abstract In polymer membrane fuel cells (PEMFC), the pore microstructure and effective diffusion coefficient ( $$D_{eff}$$ D eff ) of catalytic layer have a significant impact on overall performance cell. this work, numerical methods to simulate PEMFC layers were used study effect isotropy $$I_{xy}$$ I xy . The proposed methodology studies reconstructed systems by Simulated Annealing imaging with different surface fractions microstructures composed two diffusive phases: agglomerates pores. is determined numerically Finite Volume Method solved for Fick's First Law Diffusion. results show that can effectively quantify both phases. Two trends obtained in magnitude concerning change isotropy: (1) an analytical equation article $$D_{eff} \ge 5\% D_{0}$$ ≥ 5 % 0 (2) solutions are < D_{0} .$$ < . our lineal logarithmic sweep. When fraction $$\emptyset =$$ ∅ = 50%, decreases more linearly than = 10\%$$ 10 at beginning change, which indicates small changes particulate material modify it drastically; under these conditions predominant. (3) less exponentially end shows bar-aligned drastically alter it. trend, agglomerate affected isotropy. be as design tool improve mass transport porous electrodes.

Language: Английский

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Synergistic RB5 dye degradation and oxygen evolution reaction (OER) catalysis by WO3 nano-pellets: mechanistic insights and water remediation applications

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 48, P. 104216 - 104216

Published: March 22, 2024

Language: Английский

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