FeNi3 and Ni-Based Nanoparticles as Electrocatalysts for Magnetically Enhanced Alkaline Water Electrolysis

Today, hydrogen mainly originates from fossil sources (gas, oil, and coal). Room temperature water electrolysis is an interesting alternative for renewable electricity storage, even if it is well-known that high-temperature systems are more efficient. To address this issue, we studied different non-...

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Published inElectrocatalysis Vol. 11; no. 5; pp. 567 - 577
Main Authors Gatard, Vivien, De Masi, Déborah, Chattot, Raphaël, Marin, Irene Mustieles, Revert, Juan Manuel Asensio, Fazzini, Pier-Francesco, Encinas, Thierry, Martin, Vincent, Faure, Stéphane, Deseure, Jonathan, Carrey, Julian, Chaudret, Bruno, Chatenet, Marian
Format Journal Article
LanguageEnglish
Published New York Springer US 01.09.2021
Springer Nature B.V
Springer
Subjects
Catalysis
Catalysts
Chemical Sciences
Chemistry
Chemistry and Materials Science
Electric energy storage
Electrocatalysts
Electrochemistry
Electrolysis
Energy Systems
High temperature
Hydrogen evolution reactions
Inductively coupled plasma mass spectrometry
Nanoparticles
Original Research
Oxygen evolution reactions
Physical Chemistry
Platinum
Room temperature
Rotating disks
Hydrogen evolution reaction (HER)
Alkaline water electrolysis
Nickel
Iron carbide
Oxygen evolution reaction (OER)
Magnetic nanoparticles
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Summary:Today, hydrogen mainly originates from fossil sources (gas, oil, and coal). Room temperature water electrolysis is an interesting alternative for renewable electricity storage, even if it is well-known that high-temperature systems are more efficient. To address this issue, we studied different non-platinum group metal (non-PGM) catalysts for alkaline oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) by recording cyclic voltamperograms with a rotating disk electrode set up. Physicochemical characterizations of Ni-based and FeNi 3 -based catalysts were performed using transmission electron microscopy, X-ray diffraction (XRD), and inductively coupled plasma mass spectroscopy (ICP-MS). Ni synthesized by the hot injection method is a good catalyst for HER, yet still less active than Pt/C. FeNi 3 with and without a Ni surface doping is very good OER catalysts, slightly better than commercial unsupported IrO 2 . Electrochemical tests under alternating magnetic field (AMF) using these nanoparticles are ongoing, as these materials are compatible with AMF activation. Graphical Abstract
ISSN:1868-2529
1868-5994
DOI:10.1007/s12678-020-00616-9