Corrosion inhibition mechanisms of metal-organic frameworks in ammonia-rich environments.

IF 4.2 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Frontiers in Chemistry Pub Date : 2025-09-22 eCollection Date: 2025-01-01 DOI:10.3389/fchem.2025.1644300

Jiao-Jiao Cao, Yu-Meng Wu, Jin-Long Ge, Qing-Min Yang, Zhen-Yu Chen

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Abstract

A range of metal-organic framework (MOF)-based composite materials were synthesized and assessed for their corrosion inhibition properties in ammonia-containing aqueous environments. The interaction mechanisms of these materials with copper surfaces were systematically investigated using electrochemical techniques and surface characterization methods. Based on these analyses, a comprehensive mechanistic model was developed to explain the interplay of the observed factors. The results demonstrated that the corrosion inhibition performance of zeolitic imidazolate frameworks (ZIFs), a representative class of MOFs, is significantly influenced by the surrounding environment. Specifically, experimental analysis revealed a competitive interaction between NH₃ and the ZIF ligand in complex reactions, leading to structural instability of the ZIFs. This instability compromises the protective layer formed on the copper surface, resulting in a reduction of up to 60% in corrosion inhibition efficiency and, consequently, insufficient long-term durability.

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富氨环境中金属有机骨架的缓蚀机理。

合成了一系列金属-有机骨架（MOF）基复合材料，并对其在含氨水环境中的缓蚀性能进行了评价。利用电化学技术和表面表征方法系统地研究了这些材料与铜表面的相互作用机理。在此基础上，建立了一个综合的机制模型来解释观测到的因素之间的相互作用。结果表明，沸石咪唑盐框架（ZIFs）的缓蚀性能受到周围环境的显著影响。具体来说，实验分析表明，在复杂反应中，NH3与ZIF配体之间存在竞争性相互作用，导致ZIF结构不稳定。这种不稳定性破坏了铜表面形成的保护层，导致缓蚀效率降低高达60%，因此长期耐用性不足。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Chemistry Chemistry-General Chemistry

CiteScore

8.50

自引率

3.60%

发文量

1540

审稿时长

12 weeks

期刊介绍： Frontiers in Chemistry is a high visiblity and quality journal, publishing rigorously peer-reviewed research across the chemical sciences. Field Chief Editor Steve Suib at the University of Connecticut is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to academics, industry leaders and the public worldwide. Chemistry is a branch of science that is linked to all other main fields of research. The omnipresence of Chemistry is apparent in our everyday lives from the electronic devices that we all use to communicate, to foods we eat, to our health and well-being, to the different forms of energy that we use. While there are many subtopics and specialties of Chemistry, the fundamental link in all these areas is how atoms, ions, and molecules come together and come apart in what some have come to call the “dance of life”. All specialty sections of Frontiers in Chemistry are open-access with the goal of publishing outstanding research publications, review articles, commentaries, and ideas about various aspects of Chemistry. The past forms of publication often have specific subdisciplines, most commonly of analytical, inorganic, organic and physical chemistries, but these days those lines and boxes are quite blurry and the silos of those disciplines appear to be eroding. Chemistry is important to both fundamental and applied areas of research and manufacturing, and indeed the outlines of academic versus industrial research are also often artificial. Collaborative research across all specialty areas of Chemistry is highly encouraged and supported as we move forward. These are exciting times and the field of Chemistry is an important and significant contributor to our collective knowledge.