Preliminary Research on Pb-Sn-Al Laminated Composite Electrode Materials Applied to Zinc Electrodeposition

Hui Yu Ma; Pei Xian Zhu; Sheng Gang Zhou; Jian Xu; Wen Fang Huang; Hong Mei Yang; Jia Xin Guo; Mao Jing Chen

doi:10.4028/www.scientific.net/AMR.150-151.303

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Preliminary Research on Pb-Sn-Al Laminated Composite Electrode Materials Applied to Zinc Electrodeposition
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 150-151Preliminary Research on Pb-Sn-Al Laminated...

Preliminary Research on Pb-Sn-Al Laminated Composite Electrode Materials Applied to Zinc Electrodeposition

Abstract:

Pb-Sn-Al (PSA) laminated composite electrode materials were prepared by means of vacuum hot pressing (VHP), through introducing a medium Sn for solving the immiscibility of Pb and Al. Compared to traditional Pb-(1.0%)Ag alloy electrode, zinc eletrodeposition experiments showed that the cell voltage was reduced by at least 120 mv, the polarization potential of electrode was decreased by 13.2%, the current efficiency was higher 1.3% and the surface morphology of cathode zinc was better and smoother as well as zinc crystals smaller and more dense, while the experiment of the resistance test also showed that the resistance was reduced by at least 50%, therefore, Pb-Sn-Al (PSA) laminated composite electrode materials have lower cell voltage, as well as excellent conductivity, which would have good prospect in development and application in zinc hydrometallurgical industry in the future.