Manganese electrodeposition from urea-rich electrolyte

Authors

  • Mladen Vuruna Military Academy University of Defense Belgrade, Serbia
  • Mihael M Bučko Military Academy University of Defense Belgrade, Serbia
  • Ljubica Radović Military Technical Institute Ratka Resanovića 1 Belgrade, Serbia
  • Jelena B Bajat Faculty of Technology and Metallurgy University of Belgrade, P.O. Box 3503 Belgrade, Serbia

DOI:

https://doi.org/10.20450/mjcce.2015.588

Keywords:

urea, electrodeposition, Mn coating, morphology

Abstract

Pure manganese coatings were prepared on the steel (AISI 4340) electrode by non-conventional electrodeposition method, in the presence of 8 mol dm-3 of urea as a plating additive. The influence of urea on the electrodeposition of Mn was investigated by linear sweep voltammetry. The morphology of the coatings was studied by scanning electron microscopy (SEM), and their elemental composition by energy dispersive X-ray spectrometry (EDS). The results showed that the presence of urea in the solution enhanced both the reduction of water and Mn2+ ions, however it also increased the current efficiency for metal reduction for around 20 %. Moreover, urea improves the characteristics of Mn deposits, i.e. their adhesiveness, porosity, compactness, and appearance. Except from oxygen as a part of Mn corrosion product at the coatings' surface, no carbon or nitrogen incorporation was detected in the deposits by EDS.

Author Biographies

Mladen Vuruna, Military Academy University of Defense Belgrade, Serbia

Reviewing interests: structure of organic compounds, diesel fuel, environmental safety protection.

 

Mihael M Bučko, Military Academy University of Defense Belgrade, Serbia

Reviewing interests: electrochemical deposition of alloy coatings, electrochemistry, coating characterization, corrosion.

Ljubica Radović, Military Technical Institute Ratka Resanovića 1 Belgrade, Serbia

Reviewing interests: thermomechanical treatment of alloys, surface characterization of metals and alloys.

Jelena B Bajat, Faculty of Technology and Metallurgy University of Belgrade, P.O. Box 3503 Belgrade, Serbia

Reviewing interests: electrochemical deposition of Zn alloys, coatings, corrosion, electrochemistry.

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Published

2015-11-12

How to Cite

Vuruna, M., Bučko, M. M., Radović, L., & Bajat, J. B. (2015). Manganese electrodeposition from urea-rich electrolyte. Macedonian Journal of Chemistry and Chemical Engineering, 34(2), 277–285. https://doi.org/10.20450/mjcce.2015.588

Issue

Vol. 34 No. 2 (2015)

Section

Electrochemistry

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