The paper presents the catalytic influence of nicotinamide on Zn²⁺ electroreduction. Changes in differential capacitance curves of the double layer Hg/acetate buffer pH = 6.0 as well as changes in zero charge potential values indicate nicotinamide adsorption with the aromatic ring on the electrode surface. This adsorption is responsible for its catalytic influence on the kinetics of Zn²⁺ ion electroreduction from the acetate buffer solution. The effect is stronger with increasing nicotinamide concentration. It is confirmed by the following factors: the increase in standard electrode rate constants, the reduction in the distance between anode and cathodic peaks on CV voltamperograms, and the decrease in activation resistance associated with the electrode reaction for nicotinamide solutions relative to those obtained in the case of reference solution. A very high catalytic capacity of vitamin B₃ on Zn²⁺ ion electroreduction kinetics from pH = 6.0 acetate buffer can be explained by the formation of an active complex on the surface of the mercury electrode: Zn²⁺ nicotinamide, which can be described as a bridge facilitating electron exchange.

An active complex NAM-Zn²⁺ is formed on the surface of the mercury electrode and it is a “bridge” that facilitates charge exchange during the electrode process.

本文提出了烟酰胺对Zn ²⁺电还原的催化作用。双层Hg /乙酸盐缓冲液pH = 6.0的差分电容曲线的变化以及零电荷电势值的变化表明烟酰胺在电极表面上吸附有芳环。这种吸附是由于其对Zn ²⁺动力学的催化作用^所致。乙酸盐缓冲溶液中的离子电还原。随着烟酰胺浓度的增加，效果更强。可以通过以下因素证实：标准电极速率常数的增加，CV伏安图上阳极峰和阴极峰之间距离的减少以及与烟酰胺溶液的电极反应相关的活化电阻的降低（相对于在CV伏安图中获得的）。参考解决方案的情况。pH = 6.0醋酸盐缓冲液中维生素B ₃对Zn ²⁺离子电还原动力学的极高催化能力可以通过在汞电极表面形成活性配合物Zn ²⁺烟酰胺来解释，其描述如下：促进电子交换的桥。

活性复合物NAM-Zn ²⁺形成在汞电极的表面，它是在电极过程中促进电荷交换的“桥”。