Electrochemical activities of IrO2 electrodes in small organic molecules containing aqueous solutions

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	Electrochemical activities of IrO2 electrodes in small organic molecules containing aqueous solutions
	J. M. Hu; J. Q. Zhang; J. T. Zhang; C. N. Cao
	2004
发表期刊	Acta Physico-Chimica Sinica
ISSN	1000-6818
卷号	20 期号:7 页码:740-744
摘要	The electrochemical activities of Ti based IrO2 active coating electrodes in Na2SO4 aqueous solutions containing methanol, formic acid and formaldehyde, respectively, were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The activity was quantitatively characterized by the double-layer capacitance, C-dl. The results showed that in comporison with that in H2SO4 electrolyte the electrode activity in Na2SO4 solution with the same concentration declines dramatically. The active surface area of the electrodes was also found to decrease in the presence of these small organic moleculars. It was found that the electrooxidation of organic compounds can take place in a wide potential region, but with a slow reaction rate. The organic oxidation is facilitated by the oxygen evolution on this type of electrode.
部门归属	zhejiang univ, dept chem, hangzhou 310027, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;hu, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;kejmhu@zju.edu.cn
关键词	Iro2 Electrode Methanol Formic Acid Formaldehyde Electrochemical Activity Oxygen-evolving Electrodes Long Service Life iro2+ta2o5 Anodes Surface Characterization Methanol Oxidation Catalytic-activity Oxide Electrodes Sulfuric-acid Evolution Impedance
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WOS记录号	WOS:000222794400015
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35373
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. M. Hu,J. Q. Zhang,J. T. Zhang,et al. Electrochemical activities of IrO2 electrodes in small organic molecules containing aqueous solutions[J]. Acta Physico-Chimica Sinica,2004,20(7):740-744.
APA	J. M. Hu,J. Q. Zhang,J. T. Zhang,&C. N. Cao.(2004).Electrochemical activities of IrO2 electrodes in small organic molecules containing aqueous solutions.Acta Physico-Chimica Sinica,20(7),740-744.
MLA	J. M. Hu,et al."Electrochemical activities of IrO2 electrodes in small organic molecules containing aqueous solutions".Acta Physico-Chimica Sinica 20.7(2004):740-744.