S. Schmachtel, S.E. Pust
This study explores the challenges associated with oxygen evolution during the electrowinning of metals, specifically focusing on zinc. The objective was to investigate the physico-chemical properties of composite electrodes to enhance the efficiency of oxygen evolution reactions in electrowinning processes. A comprehensive methodology was employed, involving the characterization of electrode materials and the evaluation of performance under typical operational conditions in zinc electrowinning. Results indicated that traditional lead-based anodes tend to exhibit high overpotentials, significantly affecting overall energy consumption. While dimensionally stable anodes (DSA) made from titanium and mixed metal oxides have shown promise, their practical application is limited due to rapid degradation caused by impurities such as manganese in the electrolyte solution. This research contributes to understanding electrode design criteria that could mitigate these issues, ultimately aiming to improve the economic viability of zinc electrowinning through more effective oxygen evolution catalysts. Insights gained from the local process investigations provide a foundation for future developments in this area.
@article{21f3e4be-4ef7-4bcc-a341-e0751c7e1127,
title={Local process investigations on composite electrodes: on the way to understanding design criteria for spray coated anodes in Zn electrowinning},
author={S. Schmachtel and S.E. Pust},
year={2008},
language={en}
}TY - JOUR TI - Local process investigations on composite electrodes: on the way to understanding design criteria for spray coated anodes in Zn electrowinning AU - S. Schmachtel AU - S.E. Pust PY - 2008 LA - en ER -
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