mobile-main-menu-button
Menu

How can we help? What do you want to learn? Search our knowledgebase.

Randles–Sevcik Equation

Last Updated: 5/7/19 by Tim Paschkewitz

ARTICLE TAGS
  • Randles-Sevcik,
  • Randles,
  • Sevcik,
  • peak current,
  • equation
Article Contents/Section Navigation
  1. Randles-Sevcik Equation
  2. References

1Randles-Sevcik Equation

 
In a potential sweep experiment (e.g., LSV Linear Sweep Voltammetry (LSV) or CV Cyclic Voltammetry (CV) ), the peak current i_i follows the Randles-Sevcik equation,
 
\displaystyle i_p=0.4463{\left(\frac{F^3}{RT}\right)}^{1/2}n^{3/2}AD_O^{1/2}C_O^*\nu^{1/2}
 
At 25°C, for an electrode with surface area A, for a solution whose electrochemical redox pair of concentration C_O^* has a diffusion coefficient D_O, was swept in an LSV or CV experiment at sweep rate \nu, i_p is
 
\displaystyle i_p=(2.69\times 10^5)n^{3/2}AD_O^{1/2}C_O^*{\nu}^1/2
Back To Top

2References

Back To Top
Questions? Find Answers.

Our knowledgebase is the central repository for written content, including help topics, theory, application notes, specifications, and software information.

Select a category below or view the Knowledgebase home page
Software

Detailed information about our Software, which includes AfterMath and retired PineChem.

Applications

Application notes discuss practical aspects of conducting specific experiments.

Theory

Fundamental electrochemical theory presented in a brief and targeted manner.

Product Specifications

Review complete product specifications and compare products within a category here.