Journal Article

FZJ-2018-04727

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction

Xu, J. ; Murphy, S. ; Xiong, D. ; Cai, R. ; Wei, X.-K.FZJ* ; Heggen, M.FZJ* ; Barborini, E. ; Vinati, S. ; Dunin-Borkowski, R.FZJ* ; Palmer, R. E. ; Liu, L. (Corresponding author)

2018
ACS Publications Washington, DC

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Please use a persistent id in citations: doi: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 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

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2018

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