Electrochemical synthesis of nickel-aluminium oxide system from metals obtained by ore processing

V. V. Korobochkin, Natalia Vasilievna Usoltseva, K. G. Shorokhov, E. V. Popova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Separate and combined electrochemical oxidation of aluminium and nickel has been conducted by alternating current of industrial frequency. Concentration increase of electrolyte solution (sodium chloride) in the range from 3 to 25 wt. % and current density from 0.5 to 1.5 A/cm2 was found to result in the increasing metal oxidation rate, excluding aluminium oxidation which oxidation rate is independent of the electrolyte solution concentration. At the current density of 1.5 A/cm2 the products of separate oxidation of nickel and aluminium are nickel oxyhydroxides, nickel hydroxides and aluminium oxyhydroxide (boehmite), respectively. In addition to these compounds, the nickel-aluminium oxide hydrate is included in the products of nickel and aluminium co-oxidation. Its content grows with the increasing electrolyte solution concentration. Varying the concentration and current density within the limits indicated, the nickel-aluminium oxide system with nickel oxide content from 3 to 10 wt. % is produced.

Original languageEnglish
Title of host publicationIOP Conference Series: Earth and Environmental Science
PublisherInstitute of Physics Publishing
Volume27
Edition1
DOIs
Publication statusPublished - 10 Nov 2015
Event19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014 - Tomsk, Russian Federation
Duration: 6 Apr 201510 Apr 2015

Other

Other19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014
CountryRussian Federation
CityTomsk
Period6.4.1510.4.15

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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    Korobochkin, V. V., Usoltseva, N. V., Shorokhov, K. G., & Popova, E. V. (2015). Electrochemical synthesis of nickel-aluminium oxide system from metals obtained by ore processing. In IOP Conference Series: Earth and Environmental Science (1 ed., Vol. 27). [012048] Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/27/1/012048