Electrolytic Deposition and Anodic Oxidation of Nanostructured Fe-Ni and Fe-Co Binary Alloys
N.V. IVANOVA1, YU. A. ZAKHAROV1,2, N.N. IVANOV2, A.A. LOBANOV1, A.A. ANDYYAKOVA1
1Kemerovo State University, Kemerovo, Russia
2Federal Research Centre of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, Russia
Keywords: бинарные системы, железо, никель, кобальт, вольтамперометрия, электроосаждение, анодное окисление, binary alloys, iron, cobalt, nickel, voltammetry, electrodeposition, anodic oxidation
Pages: 603-609
Abstract
The synthesis of nanostructured systems based on transition metals and the investigation of their physicochemical properties is one of the urgent problems of material science given the expanding area for the application of these materials. The paper presents the results of the voltammetric study of potentiostatic electrodeposition and anodic oxidation of iron-nickel and iron-cobalt nanostructured systems with glassy carbon electrodes in various electrolytes. It was found that the electrolytic synthesis of these nanostructured systems free of oxide-hydroxide impurities can be carried out in sulphate, ammonia-tartrate and chloride media. According to the voltammetry data, the phases of solid solutions with variable composition are formed during the deposition process, and their anodic dissolution proceeds by the uniform mechanism. Metal deposition rates were compared, and an approach allowing one to calculate the compositions of electrodeposited nanostructured alloys was proposed. The capabilities of anodic and cyclic voltammetry in the characterization of nanometallic deposits were shown.
DOI: 10.15372/CSD2019180
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