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首页> 外文期刊>International Journal of Electrochemical Science >Voltammetric Bahavior of Ferricyanide Ion-confined LbL Film-coated Electrodes: Use of Heparin and k-Carrageenan as Film Component
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Voltammetric Bahavior of Ferricyanide Ion-confined LbL Film-coated Electrodes: Use of Heparin and k-Carrageenan as Film Component

机译：铁氰化物离子限制的LbL膜涂层电极的伏安行为：肝素和k-角叉菜胶作为膜成分的使用

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Heparin (HEP) and carrageenan (CAR) were used for constructing thin films on the surface of a gold3- (Au) electrode and redox properties of ferricyanide ions, Fe(CN)6 , on the film-coated electrodes werestudied. HEP- and CAR-containing thin films were successfully prepared by layer-by-layer (LbL)3- deposition of the polysaccharides and poly(allylamine hydrochloride) (PAH). Fe(CN)6 ionspenetrated the LbL-deposited films to exhibit redox reactions on the Au electrodes when the outermost3- surface of the film was covered with PAH. On the other hand, penetration of Fe(CN)6 ions wassuppressed when the surface of the film was covered with HEP or CAR. The results were rationalized3- on the basis of electrostatic repulsion between Fe(CN)6 anion and negative charges in HEP and CAR.3- 3- In addition, Fe(CN)6 ions were confined in the LbL films and the confined Fe(CN)6 ions weresuccessfully used for the electrocatalytic oxidation of ascorbic acid.
机译：用肝素（HEP）和角叉菜胶（CAR）在金3-（Au）电极表面上构建薄膜，并研究了薄膜电极上铁氰化物离子Fe（CN）6的氧化还原特性。通过将多糖和聚烯丙胺盐酸盐（PAH）逐层（LbL）3-沉积，可以成功制备含HEP和CAR的薄膜。当Fe（CN）6离子的最外层表面被PAH覆盖时，Fe（CN）6离子会渗透LbL沉积的膜，从而在Au电极上显示出氧化还原反应。另一方面，当薄膜的表面被HEP或CAR覆盖时，Fe（CN）6离子的渗透被抑制。根据Fe（CN）6阴离子与HEP和CAR中的负电荷之间的静电排斥力，对结果进行了合理化3- 3-此外，Fe（CN）6离子被限制在LbL膜中，被限制的Fe（ CN）6离子已成功用于抗坏血酸的电催化氧化。

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