摘要
为获得一种新型三价铬镀铬阳极材料,用复合电沉积法制备PbO2-CeO2-ZrO2惰性阳极材料,利用扫描电镜和能谱研究阳极材料的微观形貌和元素含量;采用电化学测试方法研究阳极材料的沉积机理、耐蚀性和催化活性。结果表明:PbO2的沉积符合Johnson机理,整个沉积过程非常稳定;CeO2的加入可以细化晶粒,促进ZrO2的沉积,添加16 g/L CeO2制备的阳极材料晶粒细小,结构致密,ZrO2含量最高,耐蚀性好,催化活性高。
The inert anodes material PbO2？CeO2？ZrO2 was prepared by composite electrodeposition for trivalent chromium plating. Deposition mechanism,corrosion resistance and catalytic activity of electrode materials were studied by electrochemical measurement methods. Micro ？ morphology and element content of electrode materials were analyzed by SEM and EDX. The results show that the deposition of the coating accords with Johnson mechanism,the deposition process of PbO2 is very stable. CeO2 can refine grain and promote ZrO2 deposition. The inert anode material will have good corrosion resistance,high catalytic activity,small grain,compact structure and the highest content of ZrO2 when CeO2 concentration is 16 g/L in bath.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2013年第4期1-6,共6页
Ordnance Material Science and Engineering
基金
国家自然科学基金资助(50964008)
关键词
三价铬镀铬阳极
微观形貌
耐蚀性
催化活性
anode for trivalent chromium plating
micro-morphology
corrosion resistance
catalytic activity
