01581nam a2200241Ia 4500 MX-MdCICY 20260521091808.0 CICY B-21582 Synthesis of Birnessite-Type MnO2 by the In-Situ Electrochemical Oxidation of Mn3O4 Film for Supercapacitors Nanoscience And Nanotechnology Letters, 4(5). p.559-563, 2012 Artículo Here we report an in situ electrochemical oxidation method to synthesize birnessite-type MnO2 electrodes for supercapacitors from cathodically deposited Mn3O4 thin films. Mn3O4 thin films composed of nanowall arrays with a porous structure were prepared by cathodic deposition at various temperatures. Nanoparticles were formed within the nanowalls when the deposition temperature is above 50 C, building a nanoparticle/porous hierarchy architecture. Cyclic voltammogram (CV) was used to perform electrochemical oxidation on the Mn3O4 thin film. The birnessite-type MnO2 phase was successfully achieved after the electrochemical CV cyclings, which is believed to be responsible for the significant increase in the specific capacitance of the supercapacitor. MANGANESE OXIDE ELECTROCHEMICAL OXIDATION SUPERCAPACITOR Xia, H. Zhang, J. Li, X. https://drive.google.com/file/d/1NKizQHzVutP25wkyMTr5Olhsl2MSRTKE/view?usp=drive_link Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 31590 31590 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-26 0 B-21582 2025-06-26 08:33:35 2025-06-26 REF1