Khaoula Mzioud

This study investigates the antioxidant and anticorrosive properties of Mentha pulegium L. essential oil (MP EO) as a sustainable and eco-friendly alternative to synthetic oxidation inhibitors. The antioxidant activity of MP EO was evaluated using the ferric reducing antioxidant power (FRAP) assay, which demonstrated a strong electron-donating capacity and effective reduction of ferric ions, indicating promising antioxidant potential. The anticorrosive performance was assessed on mild steel in 0.5 M H₂SO₄ using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results showed inhibition efficiencies of up to 75.8% at a concentration of 2 g/L. Molecular docking simulations revealed favorable binding interactions between the key oil components (pulegone and menthone) and the ROS-generating enzyme model (PDB ID: 2CDU), providing complementary mechanistic insight into their potential role in oxidative stress modulation. Additionally, quantum chemical calculations highlighted electronic properties favoring adsorption on metallic surfaces. Surface morphology analysis using SEM/EDX confirmed the formation of a protective film on steel in the presence of MP EO. These combined findings position Mentha pulegium essential oil as a potent, biodegradable candidate for both antioxidant applications and corrosion prevention in acidic environments.

The term “corrosion” refers to the degradation of metallic materials (metals and their alloys) caused by a reaction with environmental factors. This phenomenon causes serious financial and health problems. Corrosion is one of the electrochemical phenomena that manifests itself as the formation of clusters on the surface of metals, where one electrode, known as the “anode”, consumes the other, known as the “cathode”, which remains dormant. In reality, these clusters form as soon as the metal surface becomes heterogeneous, forming the anode and cathode domains where the two primary electrochemical reactions (oxidation and reduction) take place. For example, dissolution or passivation of active electrode materials and dissolution, oxidation or passivation of current collectors are the main causes of corrosion in batteries. An in-depth analysis of battery corrosion is necessary due to the rapid development of battery research. We begin with an overview of recent developments in corrosion and electrode protection for different battery types.

Supercapacitors are attracting attention as high-performance energy storage devices, especially for flexible electronics. They offer high power density, long cycle life, and fast charge/discharge, making them strong alternatives to batteries in applications requiring quick energy delivery. This study reviews recent advances in supercapacitor materials, focusing on enhancing electrode performance through nanostructures and conductive composites. These innovations have significantly improved specific capacitance and electrochemical stability. The development of heat-resistant separators and highly conductive electrolytes has further improved performance under harsh conditions. Research is also advancing flexible supercapacitors to meet demand for wearable and portable electronics. Their improved mechanical flexibility and solid-state performance enable new tech integrations. However, large-scale production faces challenges such as high manufacturing costs and complex material synthesis. Continued efforts are needed to reduce costs and enable commercial use across energy storage sectors

Transitions to circular and sustainable energy systems require the design of innovative material platforms that are safe for the environment and highly resource-use efficient. In this respect, plant-derived biomaterials are increasingly recognized as highly promising alternatives to conventional components in batteries, supercapacitors, and fuel cells. This chapter underlines the role that plant-based materials play in the development of greener and more sustainable energy infrastructures by presenting their integration within the above-mentioned energy systems. Major issues such as electrical conductivity, durability, and scalability are comprehensively discussed. The most recent strategies in the realm of material hybridization, system integration, and bioinspiration are reviewed. The fast-developing intersection between natural material science and electrochemical engineering keeps driving innovation to the forefront in this interdisciplinary domain towards next-generation sustainable energy technologies.

Although synthetic corrosion inhibitors have proven effective, there's a growing interest in eco-friendly alternatives. This shift has spurred the development of green chemistry technologies, emphasizing non-toxic materials with minimal environmental impact. Compounds like phosphate, calcium phosphate, and rare earth-enriched apatite show promise as both effective and environmentally friendly inhibitors. This chapter delves into documented corrosion inhibitors, aiming to provide insights into recent advancements. With a focus on inorganic variations, it seeks to uncover their corrosion-inhibiting mechanisms. Through analysis of various studies, the chapter aims to offer a comprehensive understanding of their efficacy and environmental impact. Additionally, it presents a comparative evaluation with traditional toxic inhibitors to underscore the benefits of adopting green corrosion inhibition strategies. This discussion contributes to ongoing efforts in developing sustainable corrosion mitigation solutions for various industrial applications

Copper coatings are recognized for their outstanding corrosion resistance, wear resistance, and mechanical properties in diverse industrial applications. However conventional electrodeposition techniques often encounter challenges such as nonuniform growth and rough surface formation. This chapter reviews strategies to overcome these limitations by integrating external forces and additives into the electrodeposition process. The study explores the effects of different parameters on the coatings' microstructure, surface morphology, and microhardness. The impact of additives like leveling, grain refining, and brightening agents is examined. Additionally, electrochemical measurements evaluate the additives' effect on corrosion resistance. By optimizing deposition parameters and incorporating additives, significant improvements in copper coatings can be achieved. This review provides insights into the mechanisms of electrodeposition and offers strategies for enhancing the performance and durability of these coatings, promising wider industrial applications.

Metal corrosion poses a significant threat to environmental integrity and human safety, necessitating the exploration of alternatives to conventional corrosion inhibitors known for their adverse environmental and health impacts. In response to this imperative, natural plant extracts have emerged as promising candidates for eco-friendly corrosion inhibition. With their rich phytochemical composition and inherent affinity for metal surfaces, these extracts demonstrate considerable efficacy in preventing corrosion. Moreover, their potential incorporation into coating formulations offers enhanced protection against corrosion. This chapter aims to provide a comprehensive analysis of the utilization of plant extracts as corrosion inhibitors, while also addressing the practical challenges hindering their widespread commercial adoption. By advocating for the integration of natural solutions and adherence to the principles of green chemistry, we aspire to develop corrosion control methodologies that align with ecological sustainability and human well-being.