01503nam a2200205Ia 4500003001000000005001700010040000900027245011300036490006600149500001500215520076200230650002000992650003001012650001901042700001201061700001401073700001101087856015801098008004101256MX-MdCICY20260521091808.0  cCICY10aSynthesis of Birnessite-Type MnO2 by the In-Situ Electrochemical Oxidation of Mn3O4 Film for Supercapacitors0 aNanoscience And Nanotechnology Letters, 4(5). p.559-563, 2012  aArtículo3 aHere 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.14aMANGANESE OXIDE14aELECTROCHEMICAL OXIDATION14aSUPERCAPACITOR12aXia, H.12aZhang, J.12aLi, X.40uhttps://drive.google.com/file/d/1NKizQHzVutP25wkyMTr5Olhsl2MSRTKE/view?usp=drive_linkzPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx250602s9999    xx |||||s2   |||| ||und|d