Abstract：In this work, LaCoO3 doped Ti/RuO2 electrodes were prepared by the thermal decomposition method and their physicochemical properties were characterized by scanning electron microscope (SEM), Xray energy dispersive spectrometry (EDS), Xray diffraction (XRD), and electrochemistry studies. Our results reveal that the electrodes’ coatings consisted of irregular particles with gaps, and that elements Ti, Ru, La and Co were the main metal elements in the coatings. XRD analyses show that the coatings were formed mainly by two phases of rutile TiO2 and RuO2, and that the size of coating particles decreased when LaCoO3 was doped. Accelerated service life tests (AST) show that the life time of LaCoO3 doped electrodes was significantly longer that that without doping. Electrochemical properties of the prepared electrodes were consistent with those of the same traditional ruthenium oxides. These prepared electrodes had nearly the same oxygen evolution potential (1.19 V vs. SCE). The Tafel slope decreased when the amount of LaCoO3 doped was increased, suggesting that the activity of electrodes increased with the doped amount of LaCoO3.
张志刚1，周扬杰2，李帅1，林琅1，蒋晓瑜1. 钴酸镧掺杂Ti/RuO2电极材料电化学性能研究[J]. 湖南师范大学自然科学学报, 2019, 42(1): 70-.