Issue 6, 2023

Enhanced nickel catalysts for producing electrolytic hydrogen

Abstract

Low-cost and durable nickel-based catalysts are conventionally used in alkaline water electrolysers. Lowering the cost of electrolytic hydrogen produced via alkaline water electrolysis, particularly when using electricity sourced from intermittent renewable energy sources, is a sustainable development goal of global environmental and societal relevance. This, in practice, requires lowering the electrolytic cell overpotential while retaining high electrocatalyst durability typical of Ni-based catalytic materials. The most promising routes, we argue in this study, are the nanostructured and single-atom catalysts coupled to 3D printing for the deposition of the electrocatalytic layer on electrodes of large active area and optimal shape.

Graphical abstract: Enhanced nickel catalysts for producing electrolytic hydrogen

Article information

Article type
Perspective
Submitted
07 Jun 2023
Accepted
11 Jul 2023
First published
11 Jul 2023
This article is Open Access
Creative Commons BY-NC license

RSC Sustain., 2023,1, 1386-1393

Enhanced nickel catalysts for producing electrolytic hydrogen

R. Ciriminna and M. Pagliaro, RSC Sustain., 2023, 1, 1386 DOI: 10.1039/D3SU00177F

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