Cold-rolled aluminum foil on nickel mesh as a route to high-performance Raney nickel electrodes for alkaline water electrolysis
Artikel i vetenskaplig tidskrift, 2026

A novel route to produce Raney-nickel-coated electrodes for industrial alkaline water electrolysis is presented, in which aluminum foil is cold-rolled onto a nickel mesh, followed by heat treatment and selective leaching. This process requires no specialized equipment and shows high potential for cost-effective and scalable fabrication of supported Raney nickel electrodes. Structural analysis with SEM and synchrotron MicroCT confirms the presence of a microporous Raney nickel layer uniformly coating the substrate. Electrochemical characterization reveals superior electrode activity compared to commercial Raney Ni. In 3-electrode setup, overpotentials of 117 mV and 142 mV were recorded at -0.5 A/cm2 and -1 A/cm2, respectively. Used as cathode in a single cell, a stable cell voltage of 1.65 V at 0.5 A/ cm2 after 45 h was measured. A cell voltage of 1.77 V at 1 A/cm2 confirms the excellent activity under industrial conditions.

Raney nickel

Hydrogen evolution

Electrode development

Alkaline water electrolysis

Författare

Matthias Gramlich

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

Florian Jürries

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Sebastian Hilbert

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

Thomas Rauscher

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

Felix Heubner

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

Christian Bernacker

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

Thomas Weissgarber

Technische Universität Dresden

Fraunhofer Inst Mfg Technol & Adv Mat IFAM

International Journal of Hydrogen Energy

0360-3199 (ISSN)

Vol. 218 153918

Ämneskategorier (SSIF 2025)

Materialkemi

Annan kemiteknik

Annan medicinsk bioteknologi

Styrkeområden

Energi

Materialvetenskap

DOI

10.1016/j.ijhydene.2026.153918

Relaterade dataset

Supplementary data [dataset]

URI: https://ars.els-cdn.com/content/image/1-s2.0-S0360319926005550-mmc1.docx

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Senast uppdaterat

2026-03-13