Interrelation Between the Interaction Parameter and the Width of the Adsorption Voltammetric Peak

It is known that the width of adsorption of a voltammetric peak is defined by lateral interactions in adsorption layer, so the peak width may be a key to intensity of these interactions. Correlation between the width of the peak and interaction parameter G has been examined in details. It is impossible to find the exact equation setting G as a direct function of peak width. Approximate equations are proposed to calculate G from the peak width with high accuracy in a wide range of G values. G value can be useful not only for characterization of lateral interactions in adsorbed layer (for finding adsorption isotherm parameters), but also for quick estimation of adsorption of electroactive substance.已知伏安峰（voltammetric peak）的峰宽由吸附层内的侧向相互作用所决定，因此峰宽或可成为表征这类相互作用强度的关键指标。我们已针对峰宽与相互作用参数G（interaction parameter G）之间的相关性开展了详尽研究。目前尚无法得到将G作为峰宽直接函数的精确方程。为此，我们提出了若干近似方程，可在G的宽取值范围内以高精度通过峰宽计算G值。G值不仅可用于表征吸附层内的侧向相互作用（例如求取吸附等温线参数），还可用于快速估算电活性物质（electroactive substance）的吸附量。