新型Ce掺杂Ti/SnO_2-Sb电极的制备及其性能研究  

Preparation of a novel Ce-doped Ti/SnO_2-Sb electrode and its electro-catalytic performance

作　　者：王燕[1] 赵瑞阳[1] 朱怀工[2] 张旭斌[1] 蔡旺锋[1] 

机构地区：[1]天津大学化工学院,天津300072 [2]天津市天大北洋化工设备有限公司,天津300072

出　　处：《现代化工》2016年第11期90-93,95,共5页Modern Chemical Industry

摘　　要：采用超声涂覆-热分解法制备稀土金属Ce掺杂Ti/SnO_2-Sb电极,利用SEM对电极表面形态进行表征,并考察了Ce掺杂量和电流密度对修饰电极电催化性能和稳定性的影响。结果表明,掺杂后电极涂层中引入了新物质CeO_2,优化了电极的表面结构和形态;制备得到的电极对苯酚和对甲酚都有较好的降解效果,当Ce掺杂量为1%时降解苯酚性能最优,Ce掺杂量为2%时降解对甲酚性能最优;在最优掺杂量下,当电流密度为10 m A/cm2时降解苯酚性能最佳,电流密度为20 m A/cm2时降解对甲酚性能最佳。Ce-doped Ti/SnO2-Sb electrodes are prepared using ultrasonic coating-thermal decomposition method, which are then characterized by SEM and XRD. The effects of Ce doping amount and current density on the characteristics and stability of electrodes are studied. The results show that when CeO2 is introduced to Ce-doped electrode coating,the surface structure and morphology of the electrode are optimized. The obtained Ce-doped electrode also exhibits good degradation effect on phenol and p-cresol. The best degradation performance for phenol and p-cresol can be achieved when Ce doping amount is 1% and 2%, respectively. With the optimal Ce-doping amount, the best degradation performance for phenol and p-cresol can also be obtained when the current density is 10 mA/cm2 and 20 mA/cm2 , respectively.

关 键 词：电催化 铈 Ti/SnO2-Sb 苯酚 对甲酚 

分 类 号：TQ150.9[化学工程—电化学工业]