Electrochemical boriding of the graphite plates in potassium cryolite based electrolytes was studied. The were carried out a cell with vertical electrodes. procedure included 2 stages: 1) electrolysis KF–AlF3–KBF4 melt (CR=1.3) at low current density (0.01–0.02 A/cm2), required for boron reduction, 700 and 750 °C; 2) KF–AlF3–Al2O3 higher (0.2 aluminum reduction. optimal conditions electrodeposi...

Abstract The long-term cycling of anode-free Li-metal cells (i.e., where the negative electrode is in situ formed by electrodeposition on an electronically conductive matrix lithium sourced from positive electrode) using a liquid electrolyte affected formation inhomogeneous solid interphase (SEI) current collector and irregular Li deposition. To circumvent these issues, we report atomically def...

Electrochemical properties of LiMn2O4 cathode were investigated in three types Zn-containing electrolytes: lithium-zinc sulfate electrolyte (1M ZnSO4/2M Li2SO4), zinc (2MZnSO4) and lithium-zinc-manganese (1MZnSO4/2MLi2SO4/0.1MMnSO4). Cyclic voltammetry measurements demonstrated that is electrochemically inactive pure ZnSO4 after initial oxidation. The effect manganese (II) additive the zinc-man...

the fuel cells are distinguished as generating of green allocable energy and are electrochemical devices of low environmental impact. porous nanocrystalline strontium-doped lanthanum manganite la0.8sr0.2mno3 (lsm) cathode materials were prepared by mechanochemical route in various grinding times. carbon black was employed to produce pores. the formation of lsm single phase was studied by x-ray ...

In recent years, supercapacitors have been developed rapidly as a rechargeable energy storage device. And the performance of is depending on electrode materials, preparation method and materials become primary goal scientific development. This study synthesizes Co3O4@MnO2@PPy cathode material with porous pattern core-shell structure by hydrothermal electrodeposition. The result samples are char...

The paper formulates the problem of joint electrolytic co-deposition metal ions and ultradispersed diamond particles into a matrix. It presents developed mathematical model that describes mechanism kinetics cathode process, mass transfer particles. A satisfactory correlation with experimental data was obtained. contribution thermal action laser radiation to intensification process dispersed det...

n-Si/Cd and n-Si/Pb Schottky junctions have been prepared by electrodeposition of Cd or Pb from acidic aqueous solutions onto H-terminated and CH3-terminated n-type Si 111 surfaces. For both nondegenerately nand degenerately n+doped H–Si 111 electrodes, Cd and Pb were readily electroplated and oxidatively stripped, consistent with a small barrier height b at the Si/solution and the Si/metal jun...