Investigating the Electrochemical Properties of Metal Complexes with a Pyrimidine Derivative via Cyclic Voltammetry and Impedance Spectroscopy | ||
| Mansoura Journal of Chemistry | ||
| Volume 68, Issue 5, December 2025, Pages 25-31 PDF (930.2 K) | ||
| Document Type: Research Article | ||
| DOI: 10.21608/mjcc.2025.432380.1036 | ||
| Authors | ||
| Yasmeen Y Ewada* 1; Esam Arafa Goma2; Abdelmonem H El-Askalany3; Islam Ragab4; Ahmed Fathi Salem Molouk5 | ||
| 1chemistry department, faculty of science, Mansoura university, Mansoura, Egypt | ||
| 2Mansoura University Faculty of Science, Chemistry department | ||
| 3Chemistry department, faculty of science, Mansoura university, Mansoura, Egypt | ||
| 4Department of Chemistry, College of Science, Qassim University , Buraidah 51452 , Saudi Arabia | ||
| 5Department of Chemistry, Faculty of Science, Mansoura University | ||
| Abstract | ||
| The electrochemical behavior of the pyrimidine ligand and its nickel ion and vanadyl (IV) ionmetal complexes was investigated by cyclic voltammetry using a system with three electrodes based on glassy carbon as the working electrode and different supporting electrolytes, such as KCl in the case of nickel ion and sodium perchlorate in theinvestigation of vanadyl (IV) ion. The cyclic voltammogram of the ligand shows no specific peak in both supporting electrolytes (KCl and sodium perchlorate).The voltammograms improve the reversibility of the nickelion system and the quasi-reversibilityofthe vanadyl ion one. The hydrogen evolution reaction goes through linear sweep voltammetry (LSV) and electrochemical impedance (EIS) using by fabricated carbon paste electrode(CPE) and different modified electrodes of pyrimidine ligand and its metal complexes (nickel ion and vanadyl (IV) ion). The LSV and impedance (EIS) were also done using the CPE as the working electrode in an electrode system,given that the VO-complex has the most catalytic activity in HER. | ||
| Keywords | ||
| Electrochemical behavior; Linear sweep voltammetry; Impedance; Hydrogen Evolution | ||
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