Abstract In this paper, aryl films are grafted via electrochemical reduction of two different diazonium salts, 4-nitrobenzenediazonium tetrafluoroborate and Fast Red AL salt, in different conditions on polycrystalline copper electrodes. For the surface modification, “normal” electrografting, redox grafting (RG) and for the first time, RG and rotating disk electrode combined method are used. The obtained aryl films are characterized by X-ray photoelectron spectroscopy and atomic force microscopy. Surface concentrations of redox active moieties are determined in acetonitrile and highest values of ca. 25 and 12 nmol cm−2 are obtained in case of nitrophenyl and anthraquinone films, respectively. Different aryl films exhibit unequal blocking action toward ferricyanide probe and also variable degree of inhibition of the O2 reduction rate.

中文翻译：

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使用旋转圆盘电极法从重氮化合物接枝在多晶铜上的芳基薄膜的表面和电化学表征

摘要 在本文中，芳基薄膜通过两种不同的重氮盐，4-硝基苯重氮四氟硼酸盐和固红铝盐，在不同条件下在多晶铜电极上进行接枝。对于表面改性，“正常”电接枝，氧化还原接枝（RG）和首次使用RG和旋转盘电极组合方法。获得的芳基薄膜通过 X 射线光电子能谱和原子力显微镜进行表征。氧化还原活性部分的表面浓度在乙腈中测定，最高值约为 在硝基苯基和蒽醌薄膜的情况下分别获得 25 和 12 nmol cm-2。不同的芳基膜对铁氰化物探针表现出不同的阻断作用，并且对 O2 还原速率的抑制程度也不同。