用于氢气进化和 5-羟甲基糠醛氧化的 NiSbSn0.5O4.5 中熵合金氧化技术

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-28 DOI:10.1016/j.matlet.2025.138479

Jia Hui , Chunfu Yan , Yongzheng Shi , Zhou Yang

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引用次数: 0

摘要

电催化水分裂进行氢进化反应（HER），5-羟甲基糠醛（HMF）被氧化为2,5-呋喃二甲酸（FDCA），这一点意义重大。本文合成了单晶 NiSbSn0.5O4.5 MEAO，它具有良好的 HMF 氧化反应（HMFOR）灵敏度，在 10 mA cm-2 时 HMFOR 电位仅为 1.51 V，HMF 转化为 FDCA 的法拉第效率（FE）为 85.此外，NiSbSn0.5O4.5 在 1 M KOH + 0.1 M HMF 中显示出较低的 HER 过电位，10 mA cm-2 时为 229 mV，10 mA cm-2 时电池电压低至 0.70 V。这项工作为设计用于电催化 HER 和 HMFOR 的三元 MEAO 提供了一条潜在的途径。

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

It is significant that electrocatalytic water splitting for hydrogen evolution reaction (HER) and 5-hydroxymethylfurfural (HMF) is oxidized as 2,5-furandicarboxylic acid (FDCA). Herein, the monocrystal NiSbSn_0.5O_4.5 MEAO was synthesized, which shows good HMF oxidative reaction (HMFOR) sensitivity that the HMFOR potential is only 1.51 V at 10 mA cm⁻², and the HMF is converted to FDCA with the Faradaic efficiency (FE) of 85.3 % at 1.2 V. Besides, the NiSbSn_0.5O_4.5 shows a low HER overpotential of 229 mV at 10 mA cm⁻² in 1 M KOH + 0.1 M HMF, and the cell voltage is as low as 0.70 V at 10 mA cm⁻². This work provides a potential avenue to design a ternary MEAO for electrocatalytic HER and HMFOR.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive