Electrochemical Performance of a New Type Aluminum Foam/Pb-0.6 wt%Ag Alloy Composite Anode for Zinc Electrowinning Industry

Xiangyang Zhou; Chiyuan Ma; Juan Yang; Shuai Wang; Hui Wang; Bo Long

Electrochemical Performance of a New Type Aluminum Foam/Pb-0.6 wt%Ag Alloy Composite Anode for Zinc Electrowinning Industry

Xiangyang Zhou
, Chiyuan Ma
, Juan Yang^*
, Shuai Wang
, Hui Wang
, Bo Long

^*Corresponding author for this work

Central South University

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

In order to overcome the defects of high over-potential and preparation cost existing in traditional Pb alloy anodes, a new type aluminum foam/Pb-0.6 wt%Ag alloy composite anode (AF/Pb-0.6 wt%Ag anode) was produced. The electrochemical performance of AF/Pb-0.6 wt%Ag anode and traditional Pb-0.6 wt%Ag anode after 72 h galvanostatic polarization in 160 g/L H₂SO₄ solution was investigated comparatively by chronopotentiometry (CP), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and Tafel measurements. The results show that the anodic layer of AF/Pb-0.6 wt%Ag anode is more intact than that of the Pb-0.6 wt%Ag anode, and exhibits better corrosion resistance. Moreover, the AF/Pb-0.6 wt%Ag anode shows a lower stable anodic potential, which is consistent with higher PbO₂, lower PbO, PbO•PbSO₄ content and R_ct value obtained by CP and EIS measurements. It is also revealed that the AF/Pb-0.6 wt%Ag anode possesses a better oxygen evolution reaction (OER).

Translated title of the contribution	锌电积工业用新型泡沫铝/Pb-0.6%Ag 合金复合阳极的电化学性能
Original language	English
Pages (from-to)	3008-3014
Number of pages	7
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	47
Issue number	10
State	Published - 1 Oct 2018
Externally published	Yes

Keywords

Aluminum foam/Pb-0.6 wt%Ag alloy composite anode
Anodic layer
Corrosion resistance
Electrochemical performance
Oxygen evolution reaction

Cite this

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title = "Electrochemical Performance of a New Type Aluminum Foam/Pb-0.6 wt\%Ag Alloy Composite Anode for Zinc Electrowinning Industry",

abstract = "In order to overcome the defects of high over-potential and preparation cost existing in traditional Pb alloy anodes, a new type aluminum foam/Pb-0.6 wt\%Ag alloy composite anode (AF/Pb-0.6 wt\%Ag anode) was produced. The electrochemical performance of AF/Pb-0.6 wt\%Ag anode and traditional Pb-0.6 wt\%Ag anode after 72 h galvanostatic polarization in 160 g/L H2SO4 solution was investigated comparatively by chronopotentiometry (CP), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and Tafel measurements. The results show that the anodic layer of AF/Pb-0.6 wt\%Ag anode is more intact than that of the Pb-0.6 wt\%Ag anode, and exhibits better corrosion resistance. Moreover, the AF/Pb-0.6 wt\%Ag anode shows a lower stable anodic potential, which is consistent with higher PbO2, lower PbO, PbO•PbSO4 content and Rct value obtained by CP and EIS measurements. It is also revealed that the AF/Pb-0.6 wt\%Ag anode possesses a better oxygen evolution reaction (OER).",

keywords = "Aluminum foam/Pb-0.6 wt\%Ag alloy composite anode, Anodic layer, Corrosion resistance, Electrochemical performance, Oxygen evolution reaction",

author = "Xiangyang Zhou and Chiyuan Ma and Juan Yang and Shuai Wang and Hui Wang and Bo Long",

note = "Publisher Copyright: {\textcopyright} 2018, Science Press. All right reserved./Copyright {\textcopyright} 2018, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.",

year = "2018",

month = oct,

day = "1",

language = "英语",

volume = "47",

pages = "3008--3014",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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number = "10",

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TY - JOUR

T1 - Electrochemical Performance of a New Type Aluminum Foam/Pb-0.6 wt%Ag Alloy Composite Anode for Zinc Electrowinning Industry

AU - Zhou, Xiangyang

AU - Ma, Chiyuan

AU - Yang, Juan

AU - Wang, Shuai

AU - Wang, Hui

AU - Long, Bo

PY - 2018/10/1

Y1 - 2018/10/1

N2 - In order to overcome the defects of high over-potential and preparation cost existing in traditional Pb alloy anodes, a new type aluminum foam/Pb-0.6 wt%Ag alloy composite anode (AF/Pb-0.6 wt%Ag anode) was produced. The electrochemical performance of AF/Pb-0.6 wt%Ag anode and traditional Pb-0.6 wt%Ag anode after 72 h galvanostatic polarization in 160 g/L H2SO4 solution was investigated comparatively by chronopotentiometry (CP), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and Tafel measurements. The results show that the anodic layer of AF/Pb-0.6 wt%Ag anode is more intact than that of the Pb-0.6 wt%Ag anode, and exhibits better corrosion resistance. Moreover, the AF/Pb-0.6 wt%Ag anode shows a lower stable anodic potential, which is consistent with higher PbO2, lower PbO, PbO•PbSO4 content and Rct value obtained by CP and EIS measurements. It is also revealed that the AF/Pb-0.6 wt%Ag anode possesses a better oxygen evolution reaction (OER).

AB - In order to overcome the defects of high over-potential and preparation cost existing in traditional Pb alloy anodes, a new type aluminum foam/Pb-0.6 wt%Ag alloy composite anode (AF/Pb-0.6 wt%Ag anode) was produced. The electrochemical performance of AF/Pb-0.6 wt%Ag anode and traditional Pb-0.6 wt%Ag anode after 72 h galvanostatic polarization in 160 g/L H2SO4 solution was investigated comparatively by chronopotentiometry (CP), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and Tafel measurements. The results show that the anodic layer of AF/Pb-0.6 wt%Ag anode is more intact than that of the Pb-0.6 wt%Ag anode, and exhibits better corrosion resistance. Moreover, the AF/Pb-0.6 wt%Ag anode shows a lower stable anodic potential, which is consistent with higher PbO2, lower PbO, PbO•PbSO4 content and Rct value obtained by CP and EIS measurements. It is also revealed that the AF/Pb-0.6 wt%Ag anode possesses a better oxygen evolution reaction (OER).

KW - Aluminum foam/Pb-0.6 wt%Ag alloy composite anode

KW - Anodic layer

KW - Corrosion resistance

KW - Electrochemical performance

KW - Oxygen evolution reaction

UR - https://www.scopus.com/pages/publications/85062659433

M3 - 文章

AN - SCOPUS:85062659433

SN - 1002-185X

VL - 47

SP - 3008

EP - 3014

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 10

ER -

Electrochemical Performance of a New Type Aluminum Foam/Pb-0.6 wt%Ag Alloy Composite Anode for Zinc Electrowinning Industry

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Keywords

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