Papers by Keyword: Electrostatic Deposition

Abstract: We have developed an aerosol-based technique for deposition of monodisperse ensembles of spherical SiO₂ nanoparticles on the surface of single-crystal silicon substrate (1 cm²) with an average surface particle density of about 2.1±0.4 particles per μm². The obtained samples of monodisperse ensembles SiO₂ nanoparticles was characterized by scanning and transmission electron microscopy. The ensemble of deposited nanoparticles is characterized by a narrow size distribution with a modal size of 26.6 nm and a full width at half maximum of 3.5 nm according to the atomic force microscopy data. We have demonstrated the use of the obtained test structure to determine the effective radius of the tip of an atomic force microscope.

Abstract: Manganese oxide powders were prepared by spray pyrolysis from manganese acetate solution with various pyrolysis temperatures and directly collected via high-voltage electrostatic deposition technique (ESD). The as-prepared powders were coated onto graphite substrates by electrophoretic deposition technique (EPD). The as-prepared powders and/or coatings were examined by X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), cyclic voltammetry (CV), and etc. XRD data determined the phase of the as-prepared powders as nanocrystalline Mn3O4 phase, manganese hydroxide and residual acetate. In addition, the electrochemical characteristics of the resulting powder mixtures were examined by cyclic voltammetry and charge/discharge cycling in electrolyte for redox supercapacitor applications.