Development of Ternary Transition Metal Oxide Catalysts for Oxygen Evolution Reaction

Mizrahi, Michal [Bar-Ilan University, Ramat Gan, Israel]; Batheesh, Rawnaq [Bar-Ilan University, Ramat Gan, Israel]; NA, Lakhanlal [Technion, Israel Institute of Technology]; Moschkowitsch, Wenjamin [Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University]; Cullen, David [ORNL] (ORCID:0000000225937866); Tsur, Yoed [Technion-Israel Institute of Technology, Haifa, Israel]; Toroker, Maytal [Technion-Israel Institute of Technology, Haifa, Israel]; Elbaz, Lior [Bar-Ilan University, Ramat Gan, Israel]

doi:10.1021/acsaem.6c01325

DOE OSTI · 3740042

Development of Ternary Transition Metal Oxide Catalysts for Oxygen Evolution Reaction

Mizrahi, Michal [Bar-Ilan University, Ramat Gan, Israel]·Batheesh, Rawnaq [Bar-Ilan University, Ramat Gan, Israel]·NA, Lakhanlal [Technion, Israel Institute of Technology]·Moschkowitsch, Wenjamin [Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University]·Cullen, David [ORNL] (ORCID:0000000225937866)·Tsur, Yoed [Technion-Israel Institute of Technology, Haifa, Israel]·Toroker, Maytal [Technion-Israel Institute of Technology, Haifa, Israel]·Elbaz, Lior [Bar-Ilan University, Ramat Gan, Israel]

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Abstract

Electrochemical water splitting, a promising method for green hydrogen production, is currently hindered by the high cost of precious-group metal (PGM)-based catalysts for the oxygen evolution reaction (OER). This study addresses this challenge by advancing the development of catalysts for OER, focusing on the development of high-performance PGM-free catalysts using nickel-iron-cobalt (NiFeCo)-based aerogels. The catalysts were synthesized via a sol-gel method and critical point drying to achieve a highly porous structure with an exceptionally high surface area. The designed catalyst structure provides an ideal platform for maximizing catalytic active sites and enhancing mass transport kinetics. Co has been systematically incorporated into the current PGM-free state-of-the-art, NiFeOx catalyst, and the metal ratios have been optimized. In addition to the experimental studies, density functional theory calculations were performed to study the material’s properties of this ternary catalyst and the effect of Co addition on enhancing OER catalysis.

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Mizrahi, Michal [Bar-Ilan University, Ramat Gan, Israel], Batheesh, Rawnaq [Bar-Ilan University, Ramat Gan, Israel], NA, Lakhanlal [Technion, Israel Institute of Technology], Moschkowitsch, Wenjamin [Bar-Ilan Center for Nanotechnology and Advanced Materials, Bar-Ilan University], Cullen, David [ORNL] (ORCID:0000000225937866), Tsur, Yoed [Technion-Israel Institute of Technology, Haifa, Israel], Toroker, Maytal [Technion-Israel Institute of Technology, Haifa, Israel], Elbaz, Lior [Bar-Ilan University, Ramat Gan, Israel]. 2026-07-01. Development of Ternary Transition Metal Oxide Catalysts for Oxygen Evolution Reaction. https://doi.org/10.1021/acsaem.6c01325

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