线性扫描伏安法的基本原理与伏安图解析

doi:10.3866/PKU.DXHX202005071

Abstract

Abstract:

In this paper, we discussed the basic elements which affect the shape of linear sweep voltammograms in the reaction process on the electrode surface, that is, heterogeneous electron transfer and mass transfer in liquid phase. Derived from the basic definition and principle of voltammetry, the "supply-demand" mode between electron and mass transfer determines the characteristics of voltammograms. A series of voltammetric behaviors under different electrochemical testing conditions were discussed, including conventional electrodes and microelectrodes, reversible and irreversible electrode processes, stationary and rotating disk electrodes, and electrocatalysis. The basic laws that affect the shape of voltammograms provide a reference for understanding the fundamental principles of linear sweep voltammetry and data analysis.

Key words: Principle of linear sweep voltammetry, Electrode reaction process, Interpretation of voltammograms, Macro-and ultramicro-electrodes, Reversibility, Rotating disk electrode, Electrocatalytic reaction

MSC2000:

Chengguo Hu, Yutong Hua. Principles of Linear Sweep Voltammetry and Interpretations of Voltammograms[J].University Chemistry, 2021, 36(4): 2005071.

Figures/Tables 9

References 11

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Principles of Linear Sweep Voltammetry and Interpretations of Voltammograms

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