【摘要】 用化学法制备了普鲁士蓝(PB)修饰电极,并研究了它对不同浓度钒溶液中V(Ⅴ)/V(Ⅳ)的电催化作用。循环伏安实验表明这种修饰电极对V(Ⅴ)/V(Ⅳ)的电催化性能较好,特别是对浓度为0.1mol/L、0.5mol/L、2.5mol/L的VOSO4溶液的氧化还原起正催化作用,并且这种修饰电极具有较好的稳定性。从循环伏安曲线上推测是普鲁士蓝自身的氧化还原反应催化了V(Ⅴ)/V(Ⅳ)的氧化还原反应。更多还原

【Abstract】 Prussian-blue-modified electrodes made by chemical method were researched on electrocatalysis for V(Ⅴ)/V(Ⅳ) in 0.1 mol/L?0.5 mol/L?1.0 mol/L?1.5 mol/L?2.0 mol/L?2.5 mol/L VOSO4 solutions respectively. The results of cyclic voltammograms displayed that they have good electrocatalysis especially in 0.1 mol/L?0.5 mol/L?2.5 mol/L VOSO4 solutions and high stability. It is inferred from the results of cyclic voltammograms that redox of Prussian-blue catalyzes redox of V(Ⅳ)/V(Ⅴ) in the solutions.更多还原