CoSe₂@NiSe‐CoSe₂ Heterojunction for Enhanced Electrocatalytic 5‐Hydroxymethylfurfural Oxidation Coupled with Hydrogen Evolution

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

Published: Jan. 2, 2025

Abstract Electrochemical 5‐hydroxymethylfurfural oxidation reaction (HMFOR) offers a promising approach to producing valuable chemicals and facilitating coupled H 2 production. A significant challenge in the HMFOR lies elucidating interaction mechanisms between active sites (HMF). However, unpredictable reconstruction of during catalytic process complicates understanding these mechanisms. In this study, novel heterojunction (CoSe @NiSe‐CoSe /NF) is synthesized using straightforward hydrothermal method combined with classical selenization. This demonstrates exceptional electrocatalytic performance for direct HMF oxidation, achieving Faradaic efficiency 2,5‐furanedicarboxylic acid (FDCA) up 97.9%. Notably, it requires only 1.29 V versus RHE achieve current density 10 mA cm −2 HMFOR‐assisted hydrogen evolution (HER). The high activity primarily arises from interfacial electron redistribution. Specifically, Co modulates band structure Ni, Se serving as intermediary. modulation increases adsorption energy reduces barrier rate‐determining step HMFOR. research not achieves selective synthesis high‐value but also provides comprehensive analysis structure‐performance relationship catalyst, offering new pathway development efficient heterogeneous catalysts.

Language: Английский

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A Review of Plasma Treatment on Nano-Microstructure of Electrochemical Water Splitting Catalysts

Chinese Journal of Structural Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100520 - 100520

Published: Jan. 1, 2025

Language: Английский

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Electrochemical Conversion of 5-Hydroxymethylfurfural to 2,5-Furandicarboxaldehyde Using Mn(III)–Schiff Base Catalysts

Inorganics, Journal Year: 2025, Volume and Issue: 13(2), P. 30 - 30

Published: Jan. 22, 2025

2,5-furandicarboxaldehyde (DFF) is one of the most promising biomass-based building blocks for synthesis biobased polymers. DFF can be obtained from 5-hydroxymethylfurfural (HMF), a fructose derivate, and it key molecule in sequence reactions furan chemistry to develop plastics. In this frame, four manganese(III)–Schiff base complexes 1–4 have been obtained. The general formula complexes, MnLn(OCN)(H2O/CH3OH)m (Ln being Schiff ligands L1–L4, formed as result condensation different substituted hydroxybenzaldehydes with diverse diamines, m = 1–3), has confirmed by characterization through analytical spectroscopic techniques. X-ray crystallographic studies 1 2 showed tetragonally distorted octahedral structures, where was placed equatorial coordination positions Mn(III) ion. Complexes behaved efficient catalysts oxidation HMF an electrolytic reaction at pH 8.5, phosphate buffer room temperature, conversion rates 70–80%. On other hand, 3 4, axial position sterically less accessible, yielded only 11% DFF. results indicate that correct selection metal allows development new way obtain

Language: Английский

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Enhancement of hydrogen and oxygen evolution through durable water splitting using CoTiO3 perovskite as a bifunctional electrocatalyst

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

Published: Feb. 11, 2025

Language: Английский

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NiSbSn0.5O4.5 medium-entropy alloy oxidation for hydrogen evolution and 5-hydroxymethylfurfural oxidation

Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 138479 - 138479

Published: March 1, 2025

Language: Английский

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