skip to main content


This content will become publicly available on October 21, 2018

Title: Estimating parameters from rotating ring disc electrode measurements

Rotating ring disc electrode (RRDE) experiments are a classic tool for investigating kinetics of electrochemical reactions. Several standardized methods exist for extracting transport parameters and reaction rate constants using RRDE measurements. Here in this work, we compare some approximate solutions to the convective diffusion used popularly in the literature to a rigorous numerical solution of the Nernst-Planck equations coupled to the three dimensional flow problem. In light of these computational advancements, we explore design aspects of the RRDE that will help improve sensitivity of our parameter estimation procedure to experimental data. We use the oxygen reduction in acidic media involving three charge transfer reactions and a chemical reaction as an example, and identify ways to isolate reaction currents for the individual processes in order to accurately estimate the exchange current densities.
 [1] ;  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Transportation and Hydrogen Systems Center
  2. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering
Publication Date:
Report Number(s):
Journal ID: ISSN 1023-1935
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Russian Journal of Electrochemistry
Additional Journal Information:
Journal Volume: 53; Journal Issue: 10; Journal ID: ISSN 1023-1935
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
30 DIRECT ENERGY CONVERSION; rotating ring disc electrodes; hydrodynamics; simultaneous reactions; sensitivity analysis
OSTI Identifier: