Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

We report phase selective synthesis of intermetallic nickel silicide nanocrystals in inorganic molten salts. NiSi and Ni2Si nanocrystals are obtained by reacting a nickel (II) salt and sodium silicide Na4Si4 in the molten LiI-KI inorganic eutectic salt mixture. We report that nickel silicide nanocrystals are precursors to active electrocatalysts in the oxygen evolution reaction (OER) and may be low-cost alternatives to iridium-based electrocatalysts.

Domaines

Matériaux Physique [physics]

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2020-Kumar-Ni silicides-final for HAL.pdf (1.02 Mo)

Origine : Fichiers produits par l'(les) auteur(s)

David Portehault : Connectez-vous pour contacter le contributeur

https://hal.sorbonne-universite.fr/hal-02923099

Soumis le : vendredi 6 novembre 2020-22:51:06

Dernière modification le : jeudi 11 avril 2024-13:08:12

Archivage à long terme le : lundi 8 février 2021-03:31:17

Dates et versions

hal-02923099 , version 1 (06-11-2020)

Identifiants

HAL Id : hal-02923099 , version 1
DOI : 10.1039/D0NR04284F

Citer

Ram Kumar, Mounib Bahri, Yang Song, Francisco Gonell, Cyril Thomas, et al.. Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction. Nanoscale, 2020, 12 (28), pp.15209-15213. ⟨10.1039/D0NR04284F⟩. ⟨hal-02923099⟩

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