Recommended practices and benchmarking of foam electrodes in water splitting

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12 Scopus Citations
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Original languageEnglish
Pages (from-to)1065-1077
Journal / PublicationTrends in Chemistry
Issue number12
Online published25 Oct 2022
Publication statusPublished - Dec 2022


Generation of H2 and O2 by electrochemical water splitting is a sustainable strategy for a greener society. Recently, attention has been paid to designing 3D porous electrodes using Fe, Co, Ni, Cu, and C foam materials as substrates to obtain larger current densities (>500 mA cm−2) for industrial applications. However, oversimplification of the experimental and quantitative processes for foam electrodes has made it difficult to fully understand the electrocatalytic nature and develop the proper catalysts. Hence, an objective evaluation of the electrocatalytic activity is necessary and problems associated with foam materials must be better understood, including the impact of the surface area, current density normalization, electrode thickness, electrocatalytic mass, active materials, and electrochemical measurements.

Research Area(s)

  • benchmarked electrocatalysts, electrocatalytic activity, foam electrodes, water splitting