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响应pH的光金属有机框架作为智能涂料的功能纳米填充剂

Dehong Fan¹, Lingjie Li², Kai Qi¹

¹School of Chemistry and Chemical Engineering, Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, P. R. China.

Inorganic chemistry

|July 14, 2023

概括

一种基于的新型金属有机框架复合物 (Zr-MOF@CD) 显示了智能涂层的pH响应光. 这种材料可以在环氧涂层中自主检测损坏和腐蚀修复,从而提高金属的寿命.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
腐蚀科学腐蚀科学

背景情况:

金属有机框架 (MOF) 为先进材料提供可调节的特性.
智能涂层需要集成的传感和自我修复能力.
开发用于腐蚀检测的响应性材料对于工业应用至关重要.

研究的目的:

为了合成一个pH响应的基金属有机框架@碳点复合材料 (Zr-MOF@CD).
使用Zr-MOF@CD制造智能环氧涂层,用于自主损坏预警和腐蚀报告.
为了研究开发的智能涂层的自我修复能力.

主要方法:

没有溶剂的Zr-MOF@CD复合材料的热合成.
使用Zr-MOF@CD纳米填充剂制造的环氧涂层.
响应pH的光和涂层性能的表征.

主要成果:

Zr-MOF@CD表现出明显的蓝色光 (pH < 9) 和黄色光 (pH > 9).
智能涂层通过光变化可视显示微小的划痕 (蓝色) 和严重的腐蚀 (黄色).
复合材料表现出稳定的光反应,独立于外部因素,并对腐蚀抑制剂进行自我修复.

结论:

Zr-MOF@CD复合材料是开发具有双重报告和修复功能的智能涂料的一个有希望的材料.
这项技术可以在各种工业环境中显著提高金属结构的耐用性和寿命.
响应pH的光为实时监测涂层完整性和底层金属腐蚀提供了可靠和可视化的方法.

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