Influence of Magnetic Field on the Electrodeposition and Capacitive Performances of MnO2

Autor: Aldo Girimonte, Andrea Stefani, Massimo Innocenti, Claudio Fontanesi, Roberto Giovanardi
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Magnetochemistry, Vol 7, Iss 2, p 19 (2021)
Druh dokumentu: article
ISSN: 2312-7481
DOI: 10.3390/magnetochemistry7020019
Popis: This study focuses on the influence of an applied external magnetic field on the electrodeposition process and capacitive performances of MnO2, as pseudo-capacitive active material for supercapacitors electrodes. MnO2 was electrochemically deposited on Si/Au substrates in the presence and in the absence of a 0.5 T magnet, and its capacitive performance was tested via electrochemical characterization. The samples obtained in the presence of the magnetic field show a positive influence on the deposition process: the increase in deposition efficiency leads to more compact and uniform MnO2 coatings, with a decrease in capacitance values for the samples produced with the magnetic field.
Databáze: Directory of Open Access Journals