A5005909570- Electrodeposition and Electroless Coatings
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Semiconductor materials and interfaces
- Metal Extraction and Bioleaching
- Fuel Cells and Related Materials
- Membrane-based Ion Separation Techniques
- Corrosion Behavior and Inhibition
- Metallurgical and Alloy Processes
- Hybrid Renewable Energy Systems
- Transition Metal Oxide Nanomaterials
Azerbaijan National Academy of Sciences
2020
This study presents the research results on co-deposition of nickel and cobalt from an alkaline electrolyte containing glycine. For this purpose, cyclic linear polarization curves were obtained at various concentrations, different poten-tial sweep rates, temperatures. It was established that process occurs anomalously, with content in deposited films exceeding nickel. The deposits under optimal conditions contained 37.25 % Ni 51.43 Co. effect potential rate revealed a relationship between...
The review paper accumulates the latest information on analysis of catalyst synthesis for electrolysis water in alkaline and partially acidic media.Literature data production electro-catalysts based noble, refractory, transition pure metals, as well metals doped with molybdenum, phosphorus, other elements, are presented.Given different methods electro-catalyst, advantage electrochemical method is emphasized easy, accessible enabling to regulate composition synthesized electrodes by changing...
The influence of various factors current density, concentration electrolyte components stirring, and temperature on the composition quality Ni-Mo thin films, obtained by electrochemical deposition has been studied.It is established that deposited compounds strongly depends electrolysis conditions.Increasing density increases molybdenum content, increasing nickel content in sediments.Stirring affects electrodeposition process slightly.For obtaining high deposits, optimal conditions have determined.
This work presents studies to study the nucleation and growth mechanism of electrochemical NiMo films suitable for decomposition reaction water as an electrocatalyst, in which value potential established from polarization measurements was maintained constant. Optimal conditions synthesis Ni-Mo alloy on surface platinum nickel electrodes were using voltammetric examining influence many electrolysis parameters process co-deposition with molybdenum. The chronoamperometric method provides more...
The process of co-deposition Ni with Mo from alkaline electrolytes was studied by taking linear and cyclic polarization curves Pt electrode at various concentrations initial components potential scan rates. Solutions Na2MoO4∙2H2O NiSO4∙7H2O were used as sources ions the main in NH4OH electrolyte. It found that nickel molybdenum goes through oxide formation stage, a solid solution these two metals is deposited on cathode surface. film obtained constant current under optimal conditions...
The process of reducing molybdate ions from an alkaline electrolyte was investigated by removing cyclic and linear polarization curves.The reduction occurs predominantly heptomolybdate ions, which are formed as a result the polymerizing action ammonium on ions.The formation large amount heptamolybdates in solution accelerates reaction ions.An analysis curves at different temperatures made it possible to reveal that electroreduction is accompanied diffusion polarization.
To avoid the numerous experiments for determining optimal conditions and electrolyte composition at co-deposition of two metals we have cleated regression equation. Mathematical calculations been carried out using Optum ME package program with study some factors as current density, concentration main components, temperature, etc. which effect on process. Three independent variables selected. The amount molybdenum in deposit has chosen dependent variable. developed equation quite adequately...
The essay is about studies of the electrochemical reduction nickel ions from a glycine electrolyte by method recording cyclic and linear potentiodynamic polarization curves. effect concentration main components, potential sweep temperature on electrodeposition process has been studied. It found that at beginning controlled polarization, which turns into