嵌入式RuO_2-TiO_2-IrO_2/Ti氧化物电极的制备  

Preparation of Nano-seeds Embedded RuO_2-TiO_2-IrO_2/Ti Oxide-coating Electrode

作　　者：颜琦[1] 朱君秋[2] 

机构地区：[1]福建工程学院材料科学与工程系,福建福州350108 [2]福州大学材料科学与工程学院,福建福州350116

出　　处：《福建师范大学学报（自然科学版）》2013年第5期46-50,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建工程学院人才引进科研启动项目(GY-Z10007);福建工程学院横向课题(GY-H-10005)

摘　　要：采用纳米级的金红石相TiO2粉末(<35 nm),取代一部分可溶性钛酸四丁酯分散于前躯体溶液中,经热氧化制备出具有金红石纳米TiO2颗粒嵌入结构的RuO2-TiO2-IrO2/Ti混合氧化物电极.同时,采用传统热分解法制备了涂层氧化物名义成分相同RuO2-TiO2-IrO2/Ti常规电极作为对比样.采用XRD和电化学分析方法比较了两电极的组织结构和电催化性能.结果表明:涂层中纳米TiO2种子的嵌入改变了电极涂层的晶体生长取向,电极的电催化活性得到很大的提高.Nano- seeds embedded RuO2 -TiO2 -IrO2/Ti electrode was prepared by modified thermal decomposition method, where some of tetrabutyl titanate was replaced by rutile phase TiO2 nano-particles （ 〈35 nm） as the original material of the oxide coating. A normal RuO2 -TiO2 - IrO2/Ti electrode was prepared by the standard thermal decomposition method for comparison. The X -ray diffraction and electrochemical tests were applied to evaluate the microstructure and electro- chemical performance of the as - prepared electrodes. The results show that the nano - seeds embed- ded in oxide coating changed the crystal orientation of the oxide coating into a favorable crystal orien- tation, and the electrocatalytic activity of the electrode has been greatly improved.

关 键 词：纳米种子 电催化性能 RuO2-TiO2-IrO2 析氯 

分 类 号：TG166[金属学及工艺—热处理] TQ153[金属学及工艺—金属学]