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首页> 外文期刊>Journal of Energy Storage >Effect of lanthanum, cerium and other elements on the electrochemical corrosion properties of Pb-Ca-Sn-Al alloy in lead-acid batteries
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Effect of lanthanum, cerium and other elements on the electrochemical corrosion properties of Pb-Ca-Sn-Al alloy in lead-acid batteries

机译：镧，铈等元素对铅酸蓄电池中Pb-Ca-Sn-Al合金电化学腐蚀性能的影响

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摘要

The effects of different additives including selenium, silver, ytterbium, lanthanum, and samarium with a dosage of 0.02 wt.% +/- 0.005 wt.% on the electrochemical behavior of Pb-Ca-Sn-Al alloy have been studied in sulfuric acid solutions. The electrochemical properties were evaluated by linear potential sweep (LSV), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Metallurgical microscope and scanning electron microscope (SEM) were employed to investigate the morphology-property relationships of the corrosion layer and corrosion section of Pb-Ca-Sn-Al alloys. It was found that the additives including Ag, La and Sm can to some extent refine the grain and regular grain boundary of Pb-Ca-Sn-Al alloy, which was confirmed by metallurgical microscope. The formation of a uniform and dense corrosion layer on the surface of these three alloys can effectively reduce the corrosion rate of the alloy. Furthermore, the growth of Pb (II) and PbO2 in corrosion layer on Pb-Ca-Sn-Al alloy is remarkably inhibited by adding Ag, La, and Sm as determined by the results of CV, EIS, and SEM. These experimental facts indicate that adding Ag, La and Sm can improve the corrosion resistance of the alloy.
机译：在硫酸中研究了硒，银，，镧和sa等不同添加剂的添加量（0.02重量％+ /-0.005重量％）对Pb-Ca-Sn-Al合金电化学行为的影响。解决方案。通过线性电势扫描（LSV），循环伏安法（CV）和电化学阻抗谱（EIS）评估电化学性能。用金相显微镜和扫描电子显微镜（SEM）研究了Pb-Ca-Sn-Al合金腐蚀层与腐蚀截面的形貌-性能关系。结果表明，Ag，La和Sm等添加剂可以一定程度地细化Pb-Ca-Sn-Al合金的晶粒和规则的晶界。在这三种合金的表面上形成均匀且致密的腐蚀层可以有效地降低合金的腐蚀速率。此外，通过CV，EIS和SEM结果确定，通过添加Ag，La和Sm可以显着抑制Pb-Ca-Sn-Al合金腐蚀层中Pb（II）和PbO2的生长。这些实验事实表明，添加Ag，La和Sm可以改善合金的耐腐蚀性。

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  • 来源
    《Journal of Energy Storage》 |2019年第10期|100908.1-100908.9|共9页
  • 作者

    Yang Baofeng; Cai Xianyu; Li Enyu; Yang Shaoqiang; Liu Wei; Dai Changsong; Yin Geping;

  • 作者单位

    Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Heilongjiang Peoples R China|Harbin Inst Technol Sch Chem & Chem Engn Inst Adv Chem Power Sources Harbin 150001 Heilongjiang Peoples R China|Shuangdeng Grp Co Ltd Key Lab Electrochem Energy Storage Technol Jiangs Taizhou 225500 Jiangsu Peoples R China;

    Shuangdeng Grp Co Ltd Key Lab Electrochem Energy Storage Technol Jiangs Taizhou 225500 Jiangsu Peoples R China;

    Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Heilongjiang Peoples R China|Harbin Inst Technol Sch Chem & Chem Engn Inst Adv Chem Power Sources Harbin 150001 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Pb-Ca-Sn-Al alloy; Grain; Corrosion rate; Corrosion resistance; Corrosion layer;

    机译：Pb-Ca-Sn-Al合金;粮食;腐蚀率;耐腐蚀性能;腐蚀层;

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