在玻璃碳 (GC)基底上电沉积Pd ,应用SEM观测Pd沉积层的表面形貌 ,用循环伏安法研究了Pd/GC电极上HCOOH在HClO4溶液中的电氧化行为 .结果表明 ,Pd的电沉积条件影响电极的催化性能 .在高电流密度下制得的Pd/GC电极对HCOOH的电氧化具有比纯Pd电极更高的催化活性 .当电极表面生成PdO时 ,HCOOH被电氧化的活性很低 ,而在PdO还原后生成的Pd表面 ,HCOOH的电氧化显示极高的活性 .本文还讨论了Pd(Ⅱ )离子对HCOOH电氧化过程的影响 . Electrodepositing Pd on a glassy carbon (GC) substrate, observing the surface morphology of Pd deposit by SEM, and the electrooxidation behavior of HCOOH in HClO4 solution on Pd / GC electrode was investigated by cyclic voltammetry.The results showed that Pd Electrodeposition conditions affect the catalytic performance of the electrode.Pd / GC electrode prepared at high current density of HCOOH electrooxidation has a higher catalytic activity than the pure Pd electrode.When the surface of the electrode to generate PdO, HCOOH electrooxidation activity And the electrooxidation of HCOOH showed a very high activity on the Pd surface formed after reduction of PdO.The effect of Pd (II) ions on the electrooxidation of HCOOH was also discussed.