Ag-MnO2 composite materials (ferns-like structures) for hydrogen peroxide reduction in alkaline medium

• Published in: Inorganic chemistry communications Vol. 144; p. 109853
• Main Authors: Lamiri, Leila, Tounsi, Assia, Hamza, Djamel Eddine, Yekhlef, Radhia, Khelladi, Mouhamed Ridha, Saeed Akhtar, M., Belgherbi, Ouafia, Boudour, Samah, Habelhames, Farid, Boumaza, Noureddine, Maouche, Naima, Nessark, Belkacem
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2022
• Subjects: Catalyst; Electrodeposition; Hydrogen peroxide; Manganese dioxide; Silver nanoparticles; Manganese dioxide; Electrodeposition; Hydrogen peroxide; Silver nanoparticles; Catalyst
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2022.109853

[Display omitted] •The Ag-MnO2 Ferns-like were synthesized successfully via pulse electrodeposition (PE) method.•Ag-MnO2 electrode was used as catalyst for hydrogen peroxide reduction reaction.•Ag-MnO2 exhibits excellent electrocatalytic performance for H2O2 reduction. In this study, Manganese dioxide (MnO2) decorated with silver nanoparticles (Ag), was successfully synthetized by pulse electrodeposition (PE) onto fluorine doped tin oxide (FTO) substrate. The as-prepared Ag-MnO2/FTO sample has been characterized using X-ray diffraction, scanning electron microscopy and Impedance Spectroscopy. The micrographs revealed that the deposited film of silver nanoparticles is homogeneous and exhibits ferns-like microstructure. Electrochemical investigation indicates that the Ag-MnO2 composite possess an excellent performance toward hydrogen peroxide (H2O2) reaction in alkaline medium, this electrode could be used as cathode in feul cells.