摘要
热分解方法制备了含SbOx+SnO2中间层的钛基二氧化锰电极。极化曲线、循环伏安、电化学阻抗谱和加速寿命试验分析测试结果表明:SbOx+SnO2中间层的引入,对电极表面活性反应点数目影响不大,但基体和涂层之间的接触电阻从12Ω.cm-2降低至4.3Ω.cm-2,并可显著延缓接触电阻的升高,二氧化锰阳极的寿命从32 h提高至140 h,其电催化性能也有了显著提高。
(SbOx+SnO_2) as intermediate layer of Ti-based MnO_2 anode was prepared by thermal decomposition.Electrochemical impedance spectroscopies(EIS),accelerated life tests,polarization curves and cyclic voltammetric curves(CVs) were carried out to investigate the stability and Cl_2 evolution reaction(CER) of the anodes.It was found that,by introduction of SbOx+SnO_2 intermediate layer,resistance between Ti base and oxide film is lowered from higher than 12Ω·cm^(-2) to 4.3Ω·cm^(-2) as well as its increase during the electrolysis is hold back dramatically.The accelerate life is rocketed from 32 to 140h,CER properties of Ti-based MnO_2 anodes are also improved remarkably.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2007年第4期529-532,549,共5页
Journal of Materials Science and Engineering
基金
北京市教委产学研合作资助项目(Cxy100080406)
作者简介
倪永乐(1982-),男,硕士研究生,研究方向为涂层阳极的制备与应用.E-mail:xiaole82@126.com. 孟惠民,教授,博导.E-mail:ecm@mater.ustb.edu.cn.通讯作者
