Elaboration and electrochemical characterization of new fused heterocyclic systems as organic electrodes

• S. Roudani¹, R. Er raqioui¹, R. Maallah², R. El Ajlaoui³, A. Chtaini², S. Abouricha¹, E.M. Rakib^1,4 and B. Hammouti^5,6

¹ Laboratory of Molecular Chemistry Materials and Catalysis, Faculty of Sciences and Technics Sultan Moulay Slimane University, v Med V, BP 591, Beni-Mellal 23000, Morocco
² Molecular Electrochemistry and Inorganic Materials Team, Sultan Moulay Slimane University, Beni Mellal Faculty of Science and Technology, Morocco
³ Biotechnology, Materials and Environment team, Faculty of the Sciences, IBN ZOHR University, Agadir, Morocco
⁴ Higher School of Technology Director (EST-FBS), EST-Fkih Ben Saleh, University of Sultan Moulay Slimane (USMS), Beni-Mellal 23000, Morocco
⁵ Euro-Mediterranean University of Fes, P.O. Box 15, 30070 Fez, Morocco
⁶ Laboratory of Industrial Engineering, Energy and The Environment (LI3E) SUPMTI Rabat, Morocco

Abstract: In this study, we created paste electrodes by blending graphite carbon and natural phosphate, with modifications using organic molecules. The objective of This study aims to create a streamlined method for characterizing specific organic products, providing a faster and simpler alternative to existing techniques. Cyclic voltammetry makes it possible to separate the properties of organic products, Through the emergence of distinct oxidation and reduction peaks. The existence of NO₂ groups within the backbone of organic molecule A is manifested by the disappearance of the 1 V oxidation peak (P2), and its replacement by a reduction peak around approximately –0.5 V (P5). These electrodes were also characterized by the hydrogen peroxide reduction reaction, which showed that the CPE-NP-molecule A electrode has a very high activity towards this reaction; whereas, the second electrode CPE-NP-molecule B, does not promote this reduction. In the same way the antioxidant power of the two molecules has been deduced, we find that molecule A has a remarkable antioxidant power compared to that of molecule B.

Int. J. Corros. Scale Inhib., 2024, 13, no. 1, 82-93
doi: 10.17675/2305-6894-2024-13-1-5

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