摘要
用线性扫描伏安法测得氧化镝和氟化钠的分解电压(以玻璃化碳为研究电极)分别是 E^(900℃)=1.34V 和 E^(970℃)=2.71V。热力学分析表明实测分解电压与理论分解电压相差较大的主要原因是阳极上的去极化作用——阳极上形成四氟化碳(对 NaF)或一氧化碳(对Dy_2O_3)。
The decomposition voltages of dysprosium oxide and sodium flride are measured by using the linear sweep voltammetry(with glay)carb as the indicator-electrode).The results are that E^(900℃)=1.34V for Dy_2O_3 and E^(970℃)=2.71V for NaF.The thermodynamical analysis shows that the great difference between the measured values and the th- retical values results from the depolarization on the anode.That is,carbon tetrafluoride(for NaF)and carbon monoxide(for Dy_2O_3)are produced on the anode.
关键词
氧化镝
分解电压
氟化钠
热力学
dysprosium
dysprosium oxide
decomposition voltage
sodium fluoride
