欢迎登录材料期刊网

材料期刊网

高级检索

为解决传统铅银合金存在的铅污染和钛基PbO:(DSA)基体易钝化、使用寿命短等问题,以不锈钢为基体,用稀土Ce改性,制备了PbO2-CeO2电极。分析了PbO2的形成机理,通过析氧曲线、Tafel曲线、EDS能谱及扫描电镜考察了温度、电流密度、稀土ce等对电极性能的影响及所制备电极的元素分布及表面形貌。结果表明:最佳制备工艺为190g/LPb(N03)2,15g/L Cu(N03)2,O.5g/LNaF,30g/LCe02,pH值为2~3,机械搅拌,温度70℃,电流密度10~20mA/cm2,时间30min;所制备的镀层平整、均匀,电化学性能优良,镀层中CeO2,质量分数约为4%~6%;PbO2CeO2电极析氧电位1500mV左右,节能性能明显优于传统惰性阳极。

参考文献

[1] 徐瑞东,盘茂森,郭忠诚.锌电积用惰性阳极材料的研究现状[J].电镀与环保,2005(01):4-7.
[2] 乔庆东,李琪,于大勇,梁红玉.钛基二氧化铅电极的制备及其应用[J].应用化学,2000(05):555-557.
[3] 张翼,周新新,韩大匡,朱友益,马德胜.稀土La掺杂SnSb复合涂层Ti基电极的制备及催化性能[J].材料保护,2010(06):9-12.
[4] Chang H;Johnson D C .Electrocatalysis of Anodic Oxygen- Transfer Reactions:Detection of Soluble Intermediate Products During Electrodeposition and Stripping of β-Lead Dioxide at a Gold Electrode[J].Journal of the Electrochemical Society,1989,136(01):23-27.
[5] Chang H;Johnson D C .Electrocatalysis of Anodic Oxygen- Transfer Reactions:Chronoamperometric and Voltammetric Studies of the Nucleation and Electrodeposition of Lead Dioxide at a Rotated Gold Disk Electrode in Acidic Media[J].Journal of the Electrochemical Society,1989,136(01):17-22.
[6] Chang H;Johnson D C .Electrocatalysis of Anodic Oxygen- Transfer Reactions:Activation of PbO2-Film Electrodes in 1.0M HC104 by Addition of Bismuth,(III) and Arsenic,( III,V)[J].Electroehem Soc,1990,137(08):2452-2457.
[7] Yeo I E;Lee Y S;Johnson D C .Chem Inform Abstract:Growth of Lead Dioxide on a Gold Electrode in the Presence of Foreign Ions[J].Electrochimica Acta,1992,23(44):1811-1815.
[8] 李荻.电化学原理(第3版)[M].北京:北京航空航天大学出版社,2008:204-205.
[9] 朱龙章,陈宇飞,俞江萍.稀土在电沉积锌-镍合金中的作用[J].化学研究与应用,2001(01):98-100,86.
[10] 苗治广,郭忠诚.新型不锈钢基PbO2-WC-ZrO2复合电极材料的研制[J].电镀与涂饰,2007(04):15-17,20.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%