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本文研究了聚双吡啶(PXV)-聚苯乙烯磺酸(PSS)复合物修饰电极的膜层形态对其电化学行为的影响。不同的复合物膜层结构表现出的电化学性能有显著差别,当复合物在电极上的涂层为不均匀的多孔结构的膜层时,反映出具有较好的峰电位对称性和较快的电流响应时间,但它的峰电流较小。而均匀致密的复合物涂层则表现出较差的峰电位对称性和较长的电流响应时间,它的峰电流值在膜厚为1μm 时是前者的2—4倍。
In this paper, the effect of the film morphology of the bipyridine (PXV) -polystyrene sulfonic acid (PSS) modified electrode on its electrochemical behavior was studied. Different composite film structures exhibit significant differences in electrochemical performance. When the composite coating on the electrodes is a non-uniform porous structure, the film exhibits better peak potential symmetry and faster Of the current response time, but its peak current is smaller. The uniform and dense composite coating shows poor peak potential symmetry and longer current response time. Its peak current value is 2-4 times of the former when the film thickness is 1μm.