Covalent Organic Frameworks (COFs) as Advanced Carriers for Corrosion Prevention: Cutting-Edge Advances and Promising Future Opportunities

Abstract

This review examines the economic and societal impact of corrosion from a global perspective, drawing insights from historical studies conducted across various countries. It underscores the urgent need for innovative and sustainable corrosion control strategies, highlighting that effective prevention technologies could potentially reduce associated costs by up to 35%. The review delves into prevention strategies and advancements in mitigation technologies, with a particular focus on corrosion inhibitors. These inhibitors, categorized into organic and inorganic types, mitigate corrosion through adsorption and reaction mechanisms that form protective layers on metal surfaces. To enhance their performance, carriers such as micro/nanocapsules and porous materials are utilized to enable on-demand, stimuli-responsive release. The criteria for designing carriers for effective corrosion inhibition are also explored. Covalent organic frameworks (COFs) are identified as a revolutionary solution owing to their high porosity, multifunctional properties, and tunable structures. As advanced nanocarriers, COFs play a pivotal role in smart protective coatings, integrating corrosion inhibition with self-healing functionalities. This review explores recent developments in COF-based nanocarriers, emphasizing their transformative potential in anticorrosion applications. By addressing these obstacles and leveraging COF-based innovations, this review highlights their potential to revolutionize corrosion prevention strategies, offering sustainable and cost-effective protective solutions.