四价铈电化学再生用钛基阳极的寿命研究  

Lifetime Analysis of DSA Used in Cerium(Ⅳ) Electrochemical Regeneration Technology

作　　者：郭丽潇[1,2] 武明亮[1] 张文俊[1] 梁宇[1] 刘宇辰[1] 王永仙[1,2] 

机构地区：[1]中国辐射防护研究院,山西太原030006 [2]清华大学工程物理系,北京100084

出　　处：《材料保护》2016年第8期73-75,9,共3页Materials Protection

摘　　要：放射性金属进行铈-硝酸化学去污后产生较多的二次废液,电化学再生技术可以有效地再生四价铈,使得去污液可循环使用。由于四价铈与硝酸的强氧化性与强腐蚀性,对四价铈电化学再生工艺用电解阳极有较高要求。在硝酸体系下依据电化学再生工艺参数进行金属氧化物涂层钛阳极(DSA)强化寿命试验研究,分析了不同基材与涂层的阳极电极强化寿命曲线,并对电极涂层活性元素含量与表面形态的变化进行了比较。结果表明,在硝酸电解体系下钛镀铱钽与钛钯镀铱钽阳极稳定性好且具有良好的寿命,适用于四价铈电化学再生工艺工业化应用。Strengthening lifetime of metal oxide coated titanium anode(DSA) in nitric acid system was studied based on the parameters of cerium electrochemical regeneration technology and meantime the enhanced lifetime curves of different DSA were analyzed.Besides,the relationship between active component content and surface morphology of the coating was compared.Results showed that,the Ti-IrTa and TiPd-IrTa electrodes had good stability and lifetime,which were suitable for cerium(Ⅳ) electrochemical regeneration technology.

关 键 词：电化学再生 四价铈 DSA 强化寿命 

分 类 号：TG174.4[金属学及工艺—金属表面处理]