Acta Chimica Sinica ›› 1990, Vol. 48 ›› Issue (1): 83-86. Previous Articles     Next Articles

Original Articles

热分解制备的RuO2-IrO2电极研究

崔成强;姚士冰;张瀛洲;周绍民   

  1. 厦门大学化学系
  • 发布日期:1990-01-15

Study on RuO2-IrO2 electrode prepared by thermal decomposition

CUI CHENGQIANG;YAO SHIBING;ZHANG YINGZHOU;ZHOU SHAOMIN   

  • Published:1990-01-15

RuO2-IrO2 electrodes, prepared by thermal decomposition of RuCl3 + (NH4)2IrCl6 on Ti substrate, were studied by means of XPS and electrochem. techniques. The surface of RuO2-IrO2 electrode is homogeneous in composition, and a common p* conduction band is formed by the t2g orbitals of Ru and Ir. As the Ir content of coating increases, the position of p* band shifts to higher binding energy, indicating that the further oxidation of RuO2 is more difficult. As a result, the electrode becomes more stable and its electrocatalytic activation for O evolution in acid solution becomes lower.

Key words: METAL ELECTRODE, CALCIUM OXIDE, X-RAY PHOTOELECTRON SPECTROMETRY, ELECTROCHEMICAL ANALYSIS, THERMAL DECOMPOSITION, ELECTRODE LIFE TIME, IRIDIUM OXIDE

CLC Number: