少量铟对铅合金在硫酸溶液中阳极行为的影响
Effect of Minor In on Anodic Behavior of Lead Alloy in H2SO4 Solution
摘 要
采用动电位法研究了纯铅与Pb-0.6%In合金在4 mol/L H2SO4溶液中的阳极行为；用X射线衍射仪(XRD)、能谱仪(EDS)和扫描电镜(SEM)分析了阳极极化过程中铅及铅铟合金表面腐蚀层的成分和微观组织结构。结果表明：纯铅及Pb-0.6%In合金电极都存在活化/钝化过渡区，铟的掺入抑制了腐蚀产物层中PbSO4和PbO的形成，并有利于铅电极表面形成高电化学活性的腐蚀层。因此向铅中添加铟有利于改善铅酸电池的充放电性能。
阳极极化
阳极电位
腐蚀层
lead-indium alloy
anodization
anodic potential
corrosion layer
Abstract
The anodic behaviour of pure Pb and lead alloy containing 0.6% In in 4 mol/L H2SO4 solution was investigated by potentiodynamic method. The composition and microstructure of corrosion layer on the surface of pure Pb and Pb-0.6%In alloy were characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM). The results show that both electrodes showed active/passive transition. The addition of indium in lead decreased the formation of both PbSO4 and PbO in the corrosion products, and facilitated the formation of high electrochemically active corrosion layers on the surface of lead electrode. Therefore, charge-discharge performance of the lead-acid battery will be improved due to indium addition in lead.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201604012
所属栏目 试验研究
基金项目 国家自然科学基金(51201017); 广西科学研究与技术开发计划(桂科合14125008-1-17)
收稿日期 2016/1/10
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备注何启贤(1974-)，副教授，本科，从事有色金属冶金研究与教学工作，
引用该论文: HE Qi-xian,YUAN Xue-tao. Effect of Minor In on Anodic Behavior of Lead Alloy in H2SO4 Solution[J]. Corrosion & Protection, 2016, 37(4): 327
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参考文献
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【2】PETERSSON I,AHLBERG E. Oxidation of electrodeposited lead-tin alloys in 5 M H2SO4[J]. Journal of Power Sources,2000，91(2)：143-149.
【3】DORING H, GARCHE J, DIETZ H, et al. Currentless passivation of the PbO2 electrode with respect to the influence of tin[J]. Journal of Power Sources,1990,30(1/4)：41-45.
【4】PAVLOV D,MONAKHOV B,MAJA M,et al. Mechanism of action of Sn on the passivation phenomena in the lead-acid battery positive plate (Sn-free effect)[J]. Journal of the Electrochemical Society,1989，136(1)：27-33.
【5】MATTESCO P, BUI N, SIMON P, et al. Effect of polarization mode, time and potential on the properties of the passive layer on lead-tin alloys[J]. Journal of Power Sources,1997，64(1/2)：21-27.
【6】谢小运,刘跃进,向柏霖. 国内铅酸电池板栅材料的研究进展[J]. 电池,2010,40(3):173-176.
【7】张淳,姚姝,吴刚,等. 铅合金板栅的电化学腐蚀现象研究[J]. 电源技术，2015，39(8)：1694-1696.
【8】周彦葆，梁海河，柳厚田. 铟对铅在硫酸溶液中生长的阳极Pb(Ⅱ)氧化物膜的影响[J]. 蓄电池,2002(4):148-150.
【9】周彦葆，柳厚田. 铟含量对铅铟合金在硫酸溶液中阳极Pb(Ⅱ)氧化物膜生长的影响[J]. 蓄电池,2005(1):3-5.
【10】OSORIO W R, PEIXOTO L C, GARCIA A. Electrochemical corrosion of Pb-1wt%Sn and Pb-2.5wt% Sn alloys for lead-acid battery applications[J]. Journal of Power Sources,2009,194(2):1120-1127.
【11】PEIXOTO L C, OSORIO W R, GARCIA A. Microstructure and electrochemical corrosion behavior of a Pb-1wt%Sn alloy for lead-acid battery components[J]. Journal of Power Sources,2009,192(2):724-729.
【12】EL-SAYED A, SHAKER A M, GAD EL-KAREEM H. Anodic behaviour of antimony and antimony-tin alloys in alkaline solutions[J]. Bull of Bulletin of the Chemical Society of Japan,2003，76(8):1527-1535.
【13】LIANG H,WANG Z. Effect of indium addition on the electrochemical behavior of zinc electrodes in concentrated alkaline solutions[J]. Advanced Materials Research,2013,721(1):95-104.
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