W掺杂Ti-SnO_2电极制备及性能研究  

Preparation and property of W doped Ti-SnO_2 anode

作　　者：闫波[1] 陈阿青[1] 朱开贵[1] Yan Bo Chen Aqing Zhu Kaigui(School of Physics and Nuclear Energy Engineering,Beihang University,Beijing 100191)

机构地区：[1]北京航空航天大学物理科学与核能工程学院,北京100191

出　　处：《化工新型材料》2016年第12期189-191,共3页New Chemical Materials

摘　　要：利用溶胶凝胶-旋涂的方法制备得到3%、6%和9%不同W掺杂量的Ti-SnO_2电极。W掺杂的SnO_2涂层均匀的覆盖在基片上,电极表面无明显的龟裂纹。W掺杂能提高Ti-SnO_2电极的导电性,同时会降低涂层电极的析氧过电位,3%W掺杂的Ti-SnO_2电极的析氧过电位约为2.3V。利用计时电位法测定电极的寿命,3%W掺杂的Ti-SnO_2电极寿命最长,导致W掺杂Ti-SnO_2电极失效的主要原因是致密TiO2层的形成。Sol-gel and spin coating method were employed to prepare tungsten doped Ti-SnOz anodes. Tungsten doped Ti-SnOz coating uniformly covered the substrates, no obvious turtle crack on the electrode surface was found. The cyclic voltammetry curves demonstrated that tungsten doping could increase the electrical conductivity of coating and decreased the oxygen evolution potential of anode, and the oxygen evolution potential of 3at% tungsten doped Ti-SnOz anode was about 2.3V. Chronopotentiometry was hired to estimate the service life of anode, and 3at% tungsten doped anode was identified as the best one. It was also found that the major element for deactivation was the formation of compact titanic oxide in the anode.

关 键 词：DSA W掺杂 阳极氧化电极 

分 类 号：X703[环境科学与工程—环境工程] O646.54[理学—物理化学]