Pd–Ru core–shell nanoparticles with tunable shell thickness for active and stable oxygen evolution performance | Zendy

Lucy Gloag | Zendy; Tânia M. Benedetti | Zendy; Soshan Cheong | Zendy; Richard F. Webster | Zendy; Christopher E. Marjo | Zendy; J. Justin Gooding | Zendy; Richard D. Tilley | Zendy

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Pd–Ru core–shell nanoparticles with tunable shell thickness for active and stable oxygen evolution performance

Author(s) -

Lucy Gloag,

Tânia M. Benedetti,

Soshan Cheong,

Richard F. Webster,

Christopher E. Marjo,

J. Justin Gooding,

Richard D. Tilley

Publication year - 2018

Publication title -

nanoscale

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.038

H-Index - 224

eISSN - 2040-3372

pISSN - 2040-3364

DOI - 10.1039/c8nr03341b

Subject(s) - nanoparticle , shell (structure) , catalysis , materials science , core (optical fiber) , oxygen , oxygen evolution , chemical engineering , nanotechnology , chemistry , composite material , organic chemistry , electrode , electrochemistry , engineering

For Ru nanoparticles to be effective oxygen evolution reaction (OER) catalysts an approach is needed that stabilizes Ru while retaining high activity. Here, we present a synthesis for Pd-Ru core-shell nanoparticles with tunable shell thicknesses between 0.3-1.2 nm. The Pd core stabilizes the Ru shell to increase the stability by up to 10×, while maintaining the high current densities of pure Ru nanoparticles. Results show that the activity and stability of the nanoparticles is highly dependent on the nanoparticle shell thickness, with thin Ru shells and full coverage of the Pd core being vital for increasing both activity and stability.

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