热分解法制备锡锑电极及其性能的研究

Studies on Preparation and Properties of SnO_2-Sb_2_O5 Electrode

在钛基体上采用热分解法制备锡锑氧化物电极,考察了涂液浓度、锡锑比、烧结温度及烧结时间等对电极性能的影响,分别利用金相显微镜和X-射线粉末衍射仪对电极涂层的形貌和结构进行了表征,并通过电解甲基橙溶液考察了锡锑氧化物电极的性能。结果表明,当n(锡)∶n(锑)为9∶1,烧结θ为550℃,t为60 min时制得的电极表面颗粒均匀致密,用其电解甲基橙溶液时槽电压稳定,电催化效果良好。

SnO2-Sb2O5 electrode was prepared on Ti substrate by pyrolysis. Effects of coating solution concentration, ratio of tin and antimony, temperature and sintering time on the electrode properties were investigated. Morphology and structure of the electrode were characterized by optical microscope and XRD, the electrocatalytic performances were studied by electrolytic degradation of methyl orange. Results showed that when the ratio of tin and antimony was 9：1 ,temperature was 550℃ and sintering time was 60 min. ,the prepared electrode possessed uniform and compact surface, showed stable cell voltage when used for electrolysis of methyl orange, and exhibited good electro-catalytic effect.