TY - JOUR
T1 - Electrochemical Behavior of Pb-Co Anodes in Sulfuric Acid Electrolyte Containing Cl- Ions
AU - Wang, Shuai
AU - Liu, Ying
AU - Xu, Dong
AU - Lin, Wenjun
AU - Wang, Yong
AU - Zhao, Shuo
AU - Yang, Juan
AU - Zhou, Xiangyang
N1 - Publisher Copyright:
Copyright © 2023, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved.
PY - 2023/5
Y1 - 2023/5
N2 - Pb-Co anodes with different Co contents (0.5wt%, 1wt%, and 2wt%) were prepared by powder metallurgy, and the traditional Pb-Ca-Sn anode was used as the reference for comparison. The electrochemical behavior of the anodes in the electrolyte containing 160 g/L H2SO4 and 500 mg/L Cl- ions was evaluated by electrochemical measurements. The phase composition, surface morphologies, and element distribution of the anodic oxide layers after galvanostatic polarization for 72 h were investigated. With increasing the Co content, the anodic potential, charge transfer resistance, and oxygen evolution overpotential of the Pb-Co anodes are decreased gradually. After galvanostatic polarization for 72 h, the oxygen evolution overpotential of Pb-2wt% Co anode is lower than that of Pb-Ca-Sn anode by 101 mV. In addition, due to the presence of Cl- ions, the charge transfer is improved, the oxygen evolution reaction is inhibited, and the oxide layer is deteriorated.
AB - Pb-Co anodes with different Co contents (0.5wt%, 1wt%, and 2wt%) were prepared by powder metallurgy, and the traditional Pb-Ca-Sn anode was used as the reference for comparison. The electrochemical behavior of the anodes in the electrolyte containing 160 g/L H2SO4 and 500 mg/L Cl- ions was evaluated by electrochemical measurements. The phase composition, surface morphologies, and element distribution of the anodic oxide layers after galvanostatic polarization for 72 h were investigated. With increasing the Co content, the anodic potential, charge transfer resistance, and oxygen evolution overpotential of the Pb-Co anodes are decreased gradually. After galvanostatic polarization for 72 h, the oxygen evolution overpotential of Pb-2wt% Co anode is lower than that of Pb-Ca-Sn anode by 101 mV. In addition, due to the presence of Cl- ions, the charge transfer is improved, the oxygen evolution reaction is inhibited, and the oxide layer is deteriorated.
KW - Cl ion
KW - Pb-Co anode
KW - copper electrowinning
KW - corrosion resistance
KW - oxygen evolution reaction
UR - https://www.scopus.com/pages/publications/85164246839
M3 - 文章
AN - SCOPUS:85164246839
SN - 1002-185X
VL - 52
SP - 1565
EP - 1572
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 5
ER -