5-Hydroxymethylfurfural Oxidation in Scaled Anion Exchange Membrane Electrolyzer with NiCuO_x Catalyst

ACS Energy Letters, Journal Year: 2025, Volume and Issue: 10(1), P. 571 - 578

Published: Jan. 2, 2025

The utilization of anion exchange membrane (AEM) electrolyzers presents an opportunity for commercial production 2,5-furandicarboxylic acid (FDCA) through electrochemical oxidation 5-hydroxymethylfurfural (HMF). Consequently, developing facile synthesis techniques scaled-up electrocatalysts HMF reaction (HMFOR) is a crucial step. Herein, we developed one-step soaking method preparing 100 cm2 NiCu-based catalyst on Ni foam (NiCuOx/NF) in 10 s. In single-pass 25 AEM electrolyzer assembled by the obtained catalyst, high yield ≥95.0% and selectivity ≥99.9% were achieved to produce FDCA continuously with 200 mM electrolyte. After h stable operation at A, 207.28 g was attained purity over 99%. This work provides valuable insights into industrial-scale commercialization biomass upgrading electrolyzers.

Language: Английский

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Bio-inspired proton relay for promoting continuous 5-hydroxymethylfurfural electrooxidation in a flowing system

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A ligand-modified catalyst, Ni(OH) 2 –TPA, is synthesized for efficient HMF oxidation, wherein the uncoordinated carboxylate functions as proton relay center, enabling continuous oxidation in a flowing system.

Language: Английский

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Advancing nickel-based catalysts for enhanced hydrogen production: Innovations in electrolysis and catalyst design

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 109, P. 961 - 978

Published: Feb. 15, 2025

Language: Английский

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Electrooxidation of Glycerol to Formic Acid: from Catalyst Design Strategies to Key Coupled Systems

ChemSusChem, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract As a major by‐product of biodiesel production, glycerol offers significant economic potential when effectively utilized. The electrooxidation to formic acid in couped systems has attracted considerable attentions due its environmental friendliness, cost‐effectiveness, low energy consumption and production high‐value‐added chemicals. This concept presents the key strategies for catalyst design rational construction representative coupled towards efficient acid. Firstly, we overview from four aspects, including heteroatom doping, vacancy engineering, interface component construct highly active sites tune electronic properties electrocatalysts. Subsequently, discuss oxidation acid, highlight importance high‐value added Finally, conclude by outlining current challenges proposing future perspectives, arouse further research interest facilitate development.

Language: Английский

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Manipulating the Interfacial Hydrophobic Microenvironment via Electrolyte Engineering Promotes Electrocatalytic Fatty Alcohol Oxidation Coupled with Hydrogen Production

JACS Au, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

The selective oxidation of fatty alcohols to acids represents a pivotal transformation in organic synthesis. Traditional methods often require harsh conditions and environmentally harmful oxidants or solvents. Electrocatalytic emerges as promising green alternative, enabling mild aqueous media concurrent energy-efficient hydrogen production at the cathode. However, poor solubility water poses significant challenge, reducing reactant availability electrode surface, thereby hindering mass transfer overall reaction rates. Herein, we develop an electrolyte engineering strategy that incorporates cetyltrimethylammonium hydroxide (CTAOH) additive. This significantly enhances current density well rate on gold electrocatalyst. Through mechanistic investigation combining experimental evidence from quartz crystal microbalance (QCM) situ attenuated total reflectance surface-enhanced infrared spectroscopy (ATR-SEIRAS) with molecular dynamics (MD) simulations, confirm preferential adsorption CTAOH creates hydrophobic interfacial microenvironment anode, promoting enrichment electrode-electrolyte interface. work highlights significance hydrophobicity modulation boosting aqueous-phase electrocatalytic oxidation, paving way for more efficient transformations involving water-insoluble reactants.

Language: Английский

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Enhanced electrooxidation of 5-hydroxymethylfurfural over a ZIF-67@β-Ni(OH)2/NF heterostructure catalyst: Synergistic effects and mechanistic insights

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 806 - 817

Published: Feb. 27, 2025

Language: Английский

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Automated Microfluidics for Efficient Characterization of Cyclohexanol Electrooxidation for Sustainable Chemical Production

JACS Au, Journal Year: 2025, Volume and Issue: 5(3), P. 1340 - 1349

Published: March 4, 2025

The electrochemical conversion of biomass-derived compounds into value-added chemicals using renewable electricity has attracted attention as a promising pathway for sustainable chemical production, with the electrooxidation cyclohexanol being typical example. However, optimizing and upscaling these processes have been hindered due to limited understanding underlying mechanisms limiting factors. To address this, there is critical need experimental tools that enable more efficient reproducible measurements complex processes. In this work, we develop an automated microfluidic platform use it conduct controlled on nickel electrodes under various electrolyte compositions flow rates. features microchannel networks integrated multiple analytical instruments such pumps, workstation, digital microscope perform laboratory functions including preparation, reaction control, microscopy, characterization, all streamlined through automation. Cyclohexanol found follow Fleischmann's mechanism, irreversible heterogeneous rate-determining step. effects ionic nonionic surfactant additives are screened, both demonstrating ability enhance current densities different mechanisms. developed readily transferable measuring other power-to-chemical believed be powerful tool accelerating development electrosynthesis.

Language: Английский

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Ni₃S₂–Co₉S₈ Heterojunction Integrated within Cobalt Layered Double Hydroxide Nanosheets for 5-Hydroxymethylfurfural Oxidation and Oxygen Evolution Reaction

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

Published: March 31, 2025

Language: Английский

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Ultralow-coordinated Ni species boosting paired electrosynthesis of formate from waste plastic and carbon dioxide

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Organic fuels oxidation: A common misunderstanding related to non-noble fuel cell catalysts

Current Opinion in Electrochemistry, Journal Year: 2024, Volume and Issue: 47, P. 101567 - 101567

Published: July 2, 2024

Language: Английский

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