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Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction

Junyuan Xu, Shane Murphy, Dehua Xiong, Rongsheng Cai, Xian-Kui Wei, Marc Heggen, Emanuele Barborini, Simone Vinati, Rafal E. Dunin-Borkowski, Richard Palmer Orcid Logo, Lifeng Liu

ACS Applied Energy Materials, Volume: 1, Issue: 7, Pages: 3013 - 3018

Swansea University Author: Richard Palmer Orcid Logo

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DOI (Published version): 10.1021/acsaem.8b00111

Abstract

Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by cluster beam deposition using a matrix assembly cluster source and a pulsed microplasma cluster source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show...

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Published in: ACS Applied Energy Materials
ISSN: 2574-0962 2574-0962
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa41121
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Abstract: Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by cluster beam deposition using a matrix assembly cluster source and a pulsed microplasma cluster source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show electrocatalytic performance superior to the state-of-the-art Ru/C and RuO2 nanoparticle catalysts on both a mass and a specific-surface-area basis. Typically, the cobalt clusters can deliver 10 mA cm–2 at a low overpotential of 320 mV and show a small Tafel slope of 50 mV dec–1 and a mass-based turnover frequency of 0.01 s–1 at an overpotential of 300 mV, outperforming many cobalt-based OER catalysts.
Keywords: cluster beam deposition; cobalt nanoparticles; electrocatalysis; oxygen evolution reaction; ruthenium nanoparticles
Issue: 7
Start Page: 3013
End Page: 3018