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首页> 外文期刊>International Journal of Electrochemical Science >Poly(o-toluidine) Modified Platinum Electrode As an Electrocatalyst for Benzyl Alcohol Oxidation in Acid Media
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Poly(o-toluidine) Modified Platinum Electrode As an Electrocatalyst for Benzyl Alcohol Oxidation in Acid Media

机译：聚（邻甲苯胺）修饰的铂电极作为酸性介质中苄醇氧化的电催化剂

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摘要

The heterogeneous electrocatalytic behavior of poly (o-toluidine) modified platinum electrode (Pt/o- CH3) towards benzyl alcohol oxidation in acid medium is investigated using a cyclic voltammetrytechnique under different experimental conditions. Electrode modification is carried out by theelectrodeposition of poly (o-toluidine) films on platinum surface and the obtained films arecharacterized using FTIR and UV-visible spectroscopy as well as the mechanism of theelectrodeposition process is discussed. Data shows that, the oxidation potential of benzyl alcohol atmodifying electrode (Pt/o-CH3) is shifted to more negative value compared with that at the platinumelectrode (Pt) under the same conditions and the anodic current densities of the electrooxidationprocess enhances with increasing the monomer and alcohol concentrations. The electrocatalyticactivity of the modified electrode can be explained as a result of the synergistic effects of theconducting polymer film coated platinum surface. Also, the electrooxidation process at modifiedelectrode is described partially by a diffusion-controlled process.
机译：在不同的实验条件下，采用循环伏安技术研究了聚（邻甲苯胺）修饰的铂电极（Pt / o-CH3）对苯甲酸在酸性介质中的氧化反应。通过在铂表面上电沉积聚（邻甲苯胺）薄膜进行电极修饰，并利用FTIR和紫外-可见光谱对所得薄膜进行表征，并讨论了电沉积过程的机理。数据表明，在相同条件下，与铂电极（Pt）相比，苯甲醇修饰电极（Pt / o-CH3）的氧化电势移至更大的负值，并且电氧化过程的阳极电流密度随电导率的增加而增强。单体和酒精浓度。修饰电极的电催化活性可以解释为导电聚合物薄膜涂覆的铂表面的协同作用的结果。另外，在改性电极上的电氧化过程部分地通过扩散控制过程来描述。

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