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海洋中金属的腐蚀问题给国家带来了严重的经济损失与安全隐患，设计并制备了Zn_2In_2S5/TiO2/GN光电阴极保护复合涂层，并研究了石墨烯与Zn_2In_2S5/TiO2填料的掺入对涂层硬度、附着力、疏水性和防腐性能的影响规律。研究发现石墨烯和Zn_2In_2S5/TiO2的掺量均为2%时，涂层的硬度与疏水性等物理性能最佳；在光照条件下涂层的开路电位由-220mV降至-550mV，自腐蚀电位负移到-0.6V，交流阻抗值最小，具有最佳的光电化学性能，这为实现金属的全天保护工程化应用提供了支持。
Abstract：The corrosion of metals in marine environments poses significant economic losses and safety hazards to national infrastructure.A Zn2 In_2S5/TiO2/graphene(GN)nanocomposite coating was designed and prepared.The effects of graphene and Zn2 In2 S5/TiO2 filler incorporation on the coating's hardness,adhesion,hydrophobicity,and anti-corrosion performance were investigated.The results demonstrated that at a loading of 2% for both graphene and Zn2 In_2S5/TiO2,the coating exhibited superior physical properties,including hardness,and hydrophobicity.Under illumination,the open-circuit potential(OCP)of the coating shifted from -220 mV to -550 mV,the self corrosion potential negative shifted to -0.6V,with the lowest AC impedance,indicating optimal photoelectrochemical performance.These findings provide support for the engineering application of all-day metal protection.
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基本信息:
中图分类号:TG174.4
引用信息:
[1]高展,金祖权,张小影,等.Zn_2In_2S_5/TiO_2/GN光电阴极保护复合涂层的制备及其防腐蚀性能研究[J].青岛理工大学学报,2025,46(06):1-10.
基金信息:
国家自然科学基金山东联合基金重点项目(U2106221)