A review on catalyst advances for photothermal dry reforming of methane reaction

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128799 - 128799

Published: July 14, 2024

Language: Английский

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Tandem Active Sites in Cu/Mo‐WO₃ Electrocatalysts for Efficient Electrocatalytic Nitrate Reduction to Ammonia

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

Published: Jan. 5, 2025

Abstract Electrocatalytic NO 3 − reduction to NH is a promising technique for both ammonia synthesis and nitrate wastewater treatment. However, this conversion involves tandem processes of H 2 O dissociation hydrogenation, leading inferior Faraday efficiency (FE) yield rate. Herein, catalyst by anchoring atomically dispersed Cu species on Mo‐doped WO (Cu 5 /Mo 0.6 ‐WO ) the RR constructed, which achieves superior FE N 98.6% rate 26.25 mg h −1 cat at −0.7 V (vs RHE) in alkaline media, greatly exceeding performance Mo /WO counterparts. Systematic electrochemical measurement results reveal that promoted activation sites, accompanying accelerated water producing active hydrogens are responsible performance. In situ infrared spectroscopy theoretical calculation further demonstrate sites accelerate , dopant activates adjacent resulting decreased energy barrier * stepwise hydrogenation processes, making thermodynamically favorable. This work demonstrates critical role atomic level enhancing electrocatalytic paving feasible avenue developing high‐performance electrocatalysts.

Language: Английский

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Interface engineering of Co9S8-Ni3S2/Cu heterogeneous electrocatalyst for enhanced HMF oxidation

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162401 - 162401

Published: Jan. 1, 2025

Language: Английский

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Insights into the catalytic mechanism of V-Mo@CN for the oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152384 - 152384

Published: May 18, 2024

Language: Английский

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Differentiated Modulating the Electronic Structure of NiFe@Ni/Fe‐MnOx via Phase Transformation Engineering to Synergy Promote Bifunctional Water Splitting Reactions

Small, Journal Year: 2025, Volume and Issue: 21(7)

Published: Jan. 7, 2025

Abstract Modulating electronic structure to balance the requirement of both hydrogen evolution reaction (HER) and oxygen (OER) is crucial for developing bifunctional catalysts. Herein, phase transformation engineering utilized separately regulate catalyst structure, designed NiFe@Ni/Fe‐MnOOH schottky heterojunction exhibits remarkable electrocatalytic activity with low overpotentials 19 230 mV at 10 mA cm −2 HER OER in 1M KOH, respectively. Meanwhile, an anion‐exchange membrane water electrolyzer employing as electrodes shows voltages 1.487/1.953 V 10/1000 , operating over 200 h 1000 . Combining theoretical calculations experiments reveal that can differentially active phases HER/OER. In HER, Ni/Fe‐MnOOH metallic NiFe act *OH *H acceptors respectively accelerates dissociation subsequent Heyrovsky/Tafel step. While OER, significant Jahn‐Teller effect Mn 3+ induces surface reconstruction from Ni/Fe‐MnO 2 The formative high value 4+ modify M‐O hybridization activate lattice mechanism, which pivotal breaking restriction volcanic relationship reducing overpotential. These findings provide valuable design guidelines high‐performance multi‐functional electrocatalysts via engineering.

Language: Английский

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Sustainable Z-Scheme Photoreduction of Chromium and 2,4,6-Trinitrophenol Using Mn3O4/TiO2-Infused Hydroxyapatite Catalyst Derived from Fish Scales

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 116060 - 116060

Published: March 5, 2025

Language: Английский

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Mn‐doped CeO2 derived from Ce-MOF porous nanoribbons as highly active catalysts for the synthesis of dimethyl carbonate from CO2 and methanol

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(35), P. 47911 - 47922

Published: July 16, 2024

Language: Английский

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Modulating the Moderate d‐Band Center of Indium in InVO₄ Nanobelts by Synergizing MnO_x and Oxygen Vacancies for High‐Efficiency CO₂ Photoreduction

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 27, 2024

Abstract Modulating the electronic properties of transition metal sites in photocatalysts at atomic level is essential for achieving high‐activity carbon dioxide photoreduction (CO 2 PR). An strategy herein proposed to engineer In‐d‐band center InVO 4 by incorporating MnO x nanoparticles and oxygen vacancies (V O ) into holey nanobelts (MnO /V ‐InVO ), which synergistically modulates a moderate consequently leads high‐efficiency CO PR. The catalyst with optimized property exhibits single evolution rate up 145.3 µmol g −1 h monoxide (CO) product selectivity 92.6%, coming out front reported ‐based materials. It discovered that modulated favors interaction between In their intermediates, thereby improves thermodynamics kinetics PR‐to‐CO reaction. This work not only demonstrates effective engineering d orbital low‐coordination atoms promote PR, but also paves way application tuning d‐band develop catalysts.

Language: Английский

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Enhancing the dynamic structural evolution of NiOOH on nickel nitride surface for efficient 5-hydroxymethylfurfural oxidation

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125331 - 125331

Published: April 1, 2025

Language: Английский

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Modulating Mn³⁺/Mn⁴⁺ Redox Couples in Pd/OMS-2 through Pd–O–Mn Interfacial Chemical Bonds for Boosting Electrocatalytic Oxygen Reduction and Methanol Oxidation

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Language: Английский

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