One-step in-situ growth by one-pot method for uniform BTA@ZIF-8 layer to improve the corrosion protection of sol-gel coatings

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-03-29 DOI:10.1016/j.corsci.2025.112887

Chao Chen, Mei Yu, Jian Xiao, Muyuan Jiang, Yuchan Liu, Rong Wang, Jianhua Liu

引用次数: 0

Abstract

A facile one-step in-situ growth by one-pot method for uniform BTA@ZIF-8 (1H-Benzotriazole@Zeolitic Imidazolate Framework-8) layer was developed to prepare BTA@ZIF-8/sol-gel composite coatings on the surface of AA2024-T3. Compared to 2MI (2-Methylimidazole), the much stronger adsorption between BTA and Cu-rich phase of aluminum alloy verified by adsorption thermodynamic and density functional theory calculation promoted heterogeneous nucleation of BTA@ZIF-8 crystals and uniform growth of BTA@ZIF-8 layer. The high corrosion protection of 2.6 μm thick BTA@ZIF-8/sol-gel composite coatings, 10⁶ Ω cm² |Z|_0.01 Hz after 30 days immersion and no corrosion pit by the naked eye after 60 days immersion in 3.5 wt% NaCl solution, was ascribed to the barrier property resulting from uniform BTA@ZIF-8 layer and pH-induced release of corrosion inhibitors 2MI and BTA from BTA@ZIF-8 particles.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.