摘要
为了提高锌电积用惰性阳极材料钛基二氧化铅的电催化活性和耐腐蚀性能,采用阳极氧化法制备了掺杂WC颗粒改性的钛基二氧化铅复合阳极材料。通过扫描电镜表征了电极材料的微观形貌,采用析氧极化曲线(LSV)、塔菲尔曲线和交流阻抗(EIS)研究WC添加量对复合阳极材料在电解锌液中的电催化性能和耐蚀性的影响。结果表明:WC与β-Pb O2复合电沉积能增强电极耐蚀性和电催化活性,当WC添加量为40 g/L时,所制备的复合电极材料结构致密,交换电流密度j0为6.71×10-3A·cm-2,电极自腐蚀电流密度Icorr为2.884×10-6A·cm-2,有较好的电催化活性和耐蚀性。
In order to improve the electric catalytic activity and corrosion resistance of the inert anode materials titanium base lead dioxide for zinc eletrodeposition,the composite anode materials modified titanium base lead dioxide doped with WC particles were prepared by anodic oxidation method. The microstructure of electrode material was characterized by SEM. Influence of the electric catalytic properties and corrosion resistance of composite anode material at different WC additive amount in electrolytic zinc liquid was studied by oxygen polarization curve（ LSV）,Tafel curves and AC impedance（ EIS）. The results indicated that： The composite electrodeposition of WC and β-Pb O2 can enhance the corrosion resistance and electric catalytic activity of electrode. When the WC additive amount is 40 g / L,the exchange current density j0 is 6. 71× 10^-3A·cm^-2,and the corrosion current density Icorris 2. 884 ×10^-6A·cm^-2,the composite electrode materials prepared had compact structure,good electric catalytic activity and corrosion resistance.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2016年第2期175-182,共8页
Chemical Research and Application
基金
国家自然科学基金项目(51464021)
昆明理工大学人才培养基金(省级)项目(KKSY201407099)资助
关键词
WC颗粒
复合阳极材料
电催化活性
耐蚀性
WC particles
composite anode material
electro-catalytic activity
corrosion resistance
