Sustainable oxygen evolution catalysis: Water-based fabrication of FeNi-MIL-100 on recycled stainless steel substrates

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI:10.1016/j.jcis.2024.12.077

Li Zhong, Ni Wang, Liangkui Sun, Xingchen Xie, Lixiang He, Mingliang Xiang, Wencheng Hu

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Abstract

The anodic oxygen evolution reaction (OER) process is essential in new technologies such as water electrolysis and metal-air batteries. However, it often exhibits suboptimal efficiency and delayed kinetics. This study presents a novel and new design for the fabrication of homogeneous FeNiBTC/SSM (SSM = stainless steel material) with tunable crystalline properties by a self-sacrificial and in situ synthesis from a recycled stainless steel substrate. The modified stainless steel template enhances the material’s properties compared to the original mesh substrate and its structure can be attributed to the typical MIL-100 (Material of Institute Lavoisier) structure, which is a hierarchically structured, highly chemically stable material formed by FeO6 octahedral clusters around a single shared oxygen anion. The as-synthesized FeNiBTC/SSM4 catalyst exhibited excellent electrocatalytic performance for OER, as indicated by its small Tafel slope (74.5 mV dec⁻¹), low overpotential (η₁₀ 223.7 mV), and high current retention (95.4 %) after a stability test lasting 45 h. The study demonstrates the development of water-based and self-sustaining MOF electrocatalysts for the oxygen evolution reaction in a simple process, along with a novel method for reusing renewable resources.

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可持续析氧催化：FeNi-MIL-100在再生不锈钢基板上的水基制造。

阳极析氧反应（OER）过程在水电解和金属-空气电池等新技术中是必不可少的。然而，它经常表现出次优效率和延迟动力学。本研究提出了一种新颖的设计，通过自我牺牲和原位合成，在回收的不锈钢衬底上制造具有可调谐晶体性能的均匀FeNiBTC/SSM （SSM =不锈钢材料）。与原始的网状衬底相比，改进的不锈钢模板增强了材料的性能，其结构可归因于典型的MIL-100（拉瓦锡研究所材料）结构，这是一种由FeO6八面体簇围绕单个共享氧阴离子形成的分层结构，化学稳定性高的材料。经过45 h的稳定性测试，FeNiBTC/SSM4催化剂表现出良好的OER电催化性能，Tafel斜率小（74.5 mV dec1），过电位低（η为10 223.7 mV），电流保持率高（95.4%）。该研究证明了在简单过程中开发出用于析氧反应的水基和自持型MOF电催化剂，并为可再生资源的重复利用提供了一种新方法。

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阿拉丁

sodium hydroxide

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sodium silicate

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sodium lauryl sulfate

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acetone

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sodium hydroxide (NaOH)

来源期刊

Journal of Colloid and Interface Science 化学-物理化学

CiteScore

16.10

自引率

7.10%

发文量

2568

审稿时长

2 months

期刊介绍： The Journal of Colloid and Interface Science publishes original research findings on the fundamental principles of colloid and interface science, as well as innovative applications in various fields. The criteria for publication include impact, quality, novelty, and originality. Emphasis: The journal emphasizes fundamental scientific innovation within the following categories: A.Colloidal Materials and Nanomaterials B.Soft Colloidal and Self-Assembly Systems C.Adsorption, Catalysis, and Electrochemistry D.Interfacial Processes, Capillarity, and Wetting E.Biomaterials and Nanomedicine F.Energy Conversion and Storage, and Environmental Technologies