Preparation of Network Structure MnO₂ Electrode Material

MnO₂ has problems such as poor conductivity, low true specific capacity, and poor Ionic conductivity, Ti-based IrO₂-MnO₂ nanocoating with nanometer mesh structure in this paper. Two different pulsed anode electrode position methods were used to prepare IrO₂-MnO₂ nano-coatings with nanometer mesh structure. The effects of the process parameters (different deposition currents, deposition time, and deposition pass-through ratio) on the growth of IrO₂-MnO₂ nanometer reticular structure were characterized by XRD and FESEM. The results show that the surface of the IrO₂-MnO₂ nanometer coating obtained by constant current pulse anode deposition with a deposition current of 2 mA, a deposition time of 10 min,and a deposition breakdown ratio of 7∶1 has a reticular morphology. The constant potential pulse anode deposition method has a deposition potential of 1 V, a deposition time of 1 min, and a deposition breakdown ratio of 5∶1 to obtain nanometer mesh MnO₂. The morphology of the membrane electrode nanometer prepared by the constant potential pulse electrode position is more obvious than that of the constant current electro deposition.