一取代硅钨杂多酸修饰电极的制备及其电化学性质研究

INVESTIGATIONS ON THE PREPARATION OF SiW_(11) Co HETEROPOLYACID MODIFIED ELECTRODE AND ITS ELECTROCHEMICAL PROPERTIES

研究了一取代硅钨杂多酸在酸性水溶液中的电化学行为,讨论了溶液的pH值对其电化学行为的影响,用浸渍吸附法制备了题述杂多酸修饰玻碳电极。结果表明,在酸性溶液中,该修饰电极具有很好的稳定性,对NO_2^-具有明显的催化作用。

The electrochemical behavior of SiWnCo heteropolyacid in acidic aqueous solution was studied. The effect of solution pH on the electrochemical behavior of SiW11 Co was discussed. The modified electrode of SiW11Co heteropolyacid was made by adsorptive method. This modified electrode has good stability and electrocatalytic activity on the reduction of nitrite in acidic aqueous solution.