Oxygen electrochemistry on platinum comprises of three well-known, phenomena - oxygen reduction reaction (ORR), platinum oxide cyclic voltammetry (CV) and platinum oxide growth. Many of the elementary reaction steps are common to the three reaction systems but usually separate kinetic models for the three phenomena are reported in the literature. In this paper, we present a single reaction framework comprising multistep mechanism, based on suitable modification of double trap kinetic model [1], that captures the key characteristics of the ORR, CV and oxide growth. Comparison between experimental data and model as well as other models is presented in this work.

铂上的氧电化学包括三种众所周知的现象-氧还原反应（ORR），氧化铂循环伏安法（CV）和氧化铂生长。许多基本反应步骤是这三种反应系统共有的，但文献中通常报道了这三种现象的单独动力学模型。在本文中，我们基于双阱动力学模型[1]的适当修改，提出了一个包含多步机制的单一反应框架，该框架捕获了ORR，CV和氧化物生长的关键特征。在这项工作中提供了实验数据与模型以及其他模型之间的比较。