This article focuses on the sampled-current and averaged-current staircase voltammetry techniques compared to linear potential sweep/cyclic voltammetry for the investigation of electrochemical reactions involving soluble species. First, based on analytical solutions of the relevant voltammetric models, theoretical investigation is carried out assuming reversible electron transfer reactions and different mass transport conditions in the electrolyte, i.e. semi-infinite or finite-length planar diffusion, and diffusion to an inlaid disk electrode. Next, solving numerically the appropriate integral-equation-based model, further investigation takes into account the electron transfer kinetics, the uncompensated resistance of the electrolyte, and the interfacial double-layer charging, under one-dimensional mass transport conditions. Main conclusion is that the averaged-current staircase voltammetry technique should provide nearly the same current data as the linear potential sweep/cyclic voltammetry technique under a variety of experimental conditions.

本文重点研究与线性电势扫描/循环伏安法相比的采样电流和平均电流阶梯伏安技术，以研究涉及可溶性物质的电化学反应。首先，基于相关伏安模型的解析解，进行了理论研究，假设电解质中存在可逆的电子转移反应和不同的质量传输条件，即半无限或有限长度的平面扩散，以及扩散到镶嵌圆盘电极上。接下来，在数值上求解适当的基于积分方程的模型，在一维传质条件下，进一步研究考虑了电子转移动力学，电解质的未补偿电阻和界面双层电荷。