potentiodynamic method

electrochemistry

Also known as: potential sweep method

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July 1, 2026

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The potentiodynamic method is an electroanalytical technique used in chemical analysis. It involves observing the current's response as the electrode's potential is systematically varied at a constant rate. This method is a type of transient method, which differs from steady-state methods by observing changes over time rather than waiting for equilibrium.1

Advantages of the potentiodynamic method include its ability to capture events before concentration changes occur at the electrode, allowing for the determination of pure activation values and broader ranges for Tafel relationships. This technique is valuable for studying electrochemical reactions and can reveal information about double-layer capacitance and surface coverage by intermediate species.1

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electrochemical reaction
Experimental studies
A third method, called the potentiodynamic, or potential sweep, method involves observations of the current as a function of the potential, while the latter is varied at a constant, known rate.
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A third method, called the potentiodynamic, or potential sweep, method involves observations of the current as a function of the potential, while the latter is varied at a constant, known rate.
Read More