Issue 53, 2024

Crystalline/amorphous nickel sulfide interface for high current density in alkaline HER: surface and volume confinement matters!

Abstract

In this work, we demonstrate an interface on porous nickel foam (NN) between crystalline nickel sulfide and amorphous nickel sulfide (NNS/NNSx) adapting simple hydrothermal and facile electrodeposition processes, respectively. The developed electrocatalyst required a low overpotential of 15 mV to deliver a current density of 10 mA cm−2 and the interface intrinsically activates the electrocatalyst with an onset overpotential comparable to that of Pt in an alkaline hydrogen evolution reaction.

Graphical abstract: Crystalline/amorphous nickel sulfide interface for high current density in alkaline HER: surface and volume confinement matters!

Supplementary files

Article information

Article type
Communication
Submitted
15 apr 2024
Accepted
28 may 2024
First published
29 may 2024

Chem. Commun., 2024,60, 6817-6820

Crystalline/amorphous nickel sulfide interface for high current density in alkaline HER: surface and volume confinement matters!

P. J. J. Sagayaraj and K. Sekar, Chem. Commun., 2024, 60, 6817 DOI: 10.1039/D4CC01782J

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