Electrowinning Of Tellurium From Acidic Solutions

The process of electrochemical deposition of tellurium was studied. Preliminary researches embrace the voltammetry and microgravimetric measurements. According to the results the electrolysis of tellurium was conducted under potentiostatic conditions. There was no deposition of tellurium above poten...

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Bibliographic Details
Published in:	Archives of metallurgy and materials Vol. 60; no. 2; pp. 591 - 596
Main Authors:	Kowalik, R., Kutyła, D., Mech, K., Tokarski, T., Żabiński, P.
Format:	Journal Article
Language:	English
Published:	Warsaw De Gruyter Open 01-06-2015 Polish Academy of Sciences
Subjects:	cyclic voltammetry electrochemical quartz microbalance electrodeposition electrolysis Tellurium
Online Access:	Get full text
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Summary:	The process of electrochemical deposition of tellurium was studied. Preliminary researches embrace the voltammetry and microgravimetric measurements. According to the results the electrolysis of tellurium was conducted under potentiostatic conditions. There was no deposition of tellurium above potential −0.1 vs. Ag/AgCl electrode in 25°C. The process of deposition is observed in the range of potentials −0.1 to −0.3 V vs. Ag/AgCl. The presence of tellurium was confirmed by XRF and XRD. The obtained deposits were homogenous and compact. Below potential −0.3 V vs. Ag/AgCl the Faradaic efficiency of the tellurium deposition decreased due to reduction of Te to H Te and hydrogen evolution.
ISSN:	2300-1909 1733-3490 2300-1909
DOI:	10.1515/amm-2015-0178