Facile Synthesis of MnSe/FeSe2 Nanocomposite on Nickel Foam Electrode for Enhanced Water Oxidation

• Published in: Journal of electronic materials 2023-05, Vol.52 (5), p.3436-3445
• Main Authors: Khan, Sajjad Ahmad, Gouadria, Soumaya, Alburaih, H. A., Nazir, Asghar, Ahmad, Naseeb, Tahir, Muhammad Bilal, Aman, Salma
• Format: Article
• Language: English
• Subjects: Catalysts; Characterization and Evaluation of Materials; Chemistry and Materials Science; Electrocatalysts; Electrodes; Electronics and Microelectronics; Ethanol; Instrumentation; Manganese; Materials Science; Metal foams; Nanocomposites; Nanoparticles; Nanostructured materials; Optical and Electronic Materials; Original Research Article; Oxidation; Oxygen evolution reactions; Physics; Quantum dots; Radiation; Solid State Physics; Synthesis
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-023-10324-x

The MnSe/FeSe 2 nanocomposite has been made using hydrothermal synthesis. The nanocomposite includes both MnSe and FeSe 2 due to an equal molar ratio of Mn and Fe during synthesis, and the FeSe 2 can considerably impact its electrocatalytic oxidation. The nanocomposite and the pure materials have been considered using various analytical instruments, and the nanocomposite has an onset potential of 1.511 V versus RHE and a Tafel slope of 43.90 mV dec −1 , which are most suitable for the electrochemical oxygen evolution reaction (OER). The MnSe/FeSe 2 electrocatalyst outperforms the commercially available RuO 2 catalyst. The efficient interaction of ferrous and manganese in OER electrocatalysis is seen without adding metal ions to the MnSe crystalline structure. Hence, the present composite catalyst is useful for future electrochemical applications.