金属氧化物涂层电化学性能表征的综合实验设计

设计了表征金属氧化物涂层电化学性能的综合实验。以热分解法制备的Ru O2和（Ru,La）Ox涂层为研究对象,利用Tafel曲线（PC）、循环伏安法（CV）、交流阻抗法（EIS）等表征方法,研究了稀土元素La对钌基氧化物涂层电化学活性的影响。结果表明,加入La,能提高交换电流密度,降低极化电阻,增加涂层表面活性点的数目,从而提高了涂层的电催化活性。...

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Published in实验室研究与探索 Vol. 34; no. 1; pp. 18 - 20
Main Author 龙萍 金国 薛丽莉 崔秀芳
Format Journal Article
LanguageChinese
Published 哈尔滨工程大学超轻材料与表面技术教育部重点实验室,黑龙江哈尔滨,150001 2015
Subjects
RuO2
电化学性能
综合实验
金属氧化物
镧
RuO2
comprehensive experiment
金属氧化物
lanthanum
metal oxide
镧
electrochemical properties
综合实验
电化学性能
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ISSN1006-7167

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Summary:设计了表征金属氧化物涂层电化学性能的综合实验。以热分解法制备的Ru O2和（Ru,La）Ox涂层为研究对象,利用Tafel曲线（PC）、循环伏安法（CV）、交流阻抗法（EIS）等表征方法,研究了稀土元素La对钌基氧化物涂层电化学活性的影响。结果表明,加入La,能提高交换电流密度,降低极化电阻,增加涂层表面活性点的数目,从而提高了涂层的电催化活性。
Bibliography:LONG Ping, JIN Guo, XUE Li-li, CUI Xiu-fang （ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China）
A comprehensive experiment of characterization of the electrochemical properties of the metal oxide coatings was designed. Taking Ru O2and（ Ru,La） Oxas object which are coated by thermal decomposition of the metal chlorides,the effects of rare earth element La on electrochemical properties of the coatings were investigated using Tafel curves（ PC）,cyclic voltammetry（ CV） and electrochemical impedance spectroscopy（ EIS）. The results showed that Ru-La oxide coatings exhibit largely exchange current density,lower polarization resistance,and more number of surface active site. It leads to the increase of electrocatalytic activity of the coatings. This experimental design not only fully has motivated the study enthusiasm and exploration spirit of students,but also has correlated theories to practical experiments by carrying out a proj
ISSN:1006-7167