Related Experiment Video
Updated: Aug 8, 2025

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
Published on: March 16, 2018
Approach to Evaluation of Electrocatalytic Water Splitting Parameters, Reflecting Intrinsic Activity: Toward the
Mahrokh Nazari1, Mostafa Ghaemmaghami1
1Department of Chemistry, Tarbiat Modares University, P.O. Box, 14115-175, Tehran, Iran.
Abstract:
The development of transition metal-based non-precious-metal electrocatalysts for energy storage and conversion systems has received a lot of interest recently. To further this subject in the proper way given the development of electrocatalysts, a fair comparison of their respective performance is necessary. This Review investigates the parameters used for the comparison of electrocatalyst activity. Significant evaluation criteria employed in electrochemical water splitting studies are the overpotential at defined current density usually at 10 mA per geometric surface area, Tafel slope, exchange current density, mass activity, specific activity and turnover frequency (TOF). This Review will discuss how to identify the specific activity and TOF by electrochemical and non-electrochemical methods to represent intrinsic activity as well as the benefits and uncertainties of each technique, ensuring that each method is applied correctly when calculating intrinsic activity metrics.
More Related Videos
Related Concept Videos
Electrolysis
Electrogravimetric Analysis: Overview
To test the completeness of the...
Factors Affecting Activity Coefficient
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
Voltammetry: Factors Affecting Measurements
Controlled-Potential Coulometry: Electrolytic Methods
The chosen potential...
Interfacial Electrochemical Methods: Overview

