ELECTRODEPOSITION OF SILVER FROM NITRATE-TARTRATE SOLUTIONS

Authors

  • Ewa Rudnik AGH University of Science and Technology, Faculty of Non-Ferrous Metals; Al. Mickiewicza 30; 30-059 Cracow, Poland

DOI:

https://doi.org/10.7494/mafe.2018.44.2.81

Keywords:

electrolysis, morphology, nitrate, silver, tartrate

Abstract

The electrodeposition of silver from AgNO3 solutions with the addition of L-tartaric acid was investigated. The cathodic reaction was accompanied by low electrode polarization and run under activation control for AgNO3 concentrations of above 70 mM. Tartaric acid only slightly shifted the polarization curves towards more electronegative potentials (by approx. 50 mV), but it did not change the rate-determining step. The activation control of the process resulted in the formation of rough and coherent deposits, while the mixed or diffusion control of the process promoted the formation of dendritic-like structures and spongy deposits.

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Published

2019-05-23

How to Cite

Rudnik, E. (2019). ELECTRODEPOSITION OF SILVER FROM NITRATE-TARTRATE SOLUTIONS. Metallurgy and Foundry Engineering, 44(2), 81. https://doi.org/10.7494/mafe.2018.44.2.81

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