摘要
采用不同疏松度的工业纯钛TA2为基材制作RuO2-TiO2阳极涂层.对不同疏松度基材进行了金相、物相、密度、硬度和电阻率分析,并对所制钛阳极的组织结构、形貌特征、电催化活性和耐腐蚀性进行了比较.结果表明,疏松度大(疏松)的纯钛TA2硬度比疏松度小(密实)的高60Hv,电阻率高将近0.2Ωμm;不同基材对阳极涂层的晶体结构影响不大,采用疏松纯钛TA2所制电极的涂层由于刻蚀程度难以控制,涂层表面结构较粗糙,电极的电催化活性差,电化学性能略差,析氯电位提高了约10mV,强化寿命比密实基体短100min左右,且容易剥落失效.
RuO2-TiO2 anode coating was prepared onto industrial pure titanium （TA2） substrate with different porosities. The microstructure of substrate was investigated by optical microscope. The phase structure, density, microhardness and conductivity of substrate were also examined. The phase structure, morphology, electrocatalytic activity and electrochemical stability of anodes were compared. The results showed that the mircohardness of high porosity TA2 substrate increased about 60 Hv, the conductivity of high porosity TA2 substrate increased about 0.2 Ω.μ.m. The different substrates had obvious effect on the properties of anodes. The anode prepared with the high porosity TA2 bad corrosion resistance and the worst electrocatalytic activity, and the Cl2-evolution potential increased about 10 mV, the life-time of the coating was decreased about 100 min and peeled off easily.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2008年第6期1228-1232,共5页
The Chinese Journal of Process Engineering
基金
国家高技术研究发展计划(863)基金资助项目(编号:2007AA03Z325)
福建省国际合作基金资助项目(编号:2007H0106)
关键词
钛基
疏松度
阳极涂层
电化学性能
titanium substrate
porosity
anode coating
electrochemical property
