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首页> 外文期刊>Journal of Applied Electrochemistry >Electrochemical investigation of the adsorption behaviour of anhydrides and imides on iron in acid medium
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Electrochemical investigation of the adsorption behaviour of anhydrides and imides on iron in acid medium

机译：酸性介质中酸酐和酰亚胺对铁的吸附行为的电化学研究

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The capacitance method was applied to the study of the adsorption of anhydrides and imides with different size of the anhydride and imide ring on iron electrodes in acid medium. It was found that the addition of anhydrides and imides to sulphuric acid solution leads to a decrease in the electrode double layer capacitance. The latter is determined by the adsorption of the compounds investigated. Verifying the validity of Frumkin's isotherm adsorption parameters which characterize the interaction forces between the species in the adsorbed layer, their maximum surface excess, as well as the area occupied by a single adsorbate, were determined. The data obtained, and those provided by quantum-chemical calculations of the partial electron charges and the geometric area of the organic molecules studied, form the basis of a discussion on the orientation of the species adsorbed. The inhibiting effect observed is explained in relation to the adsorption behaviour. [References: 19]
机译：采用电容法研究了在酸性介质中铁电极上不同大小的酸酐和酰亚胺环对酸酐和酰亚胺的吸附。已经发现，向硫酸溶液中添加酸酐和酰亚胺会导致电极双层电容降低。后者由所研究化合物的吸附确定。确定了Frumkin等温线吸附参数的有效性，该参数表征了被吸附层中各种物质之间的相互作用力，其最大表面过剩以及单个被吸附物所占的面积。所获得的数据，以及由部分电子电荷和所研究的有机分子的几何面积的量子化学计算所提供的数据，构成了关于所吸附物质取向的讨论的基础。关于吸附行为解释了观察到的抑制作用。 [参考：19]

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