Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles

Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis

Lucy Gloag, Tania M. Benedetti, Soshan Cheong, Yibing Li, Xuan Hao Chan, Lise Marie Lacroix, Lan-Yun Chang, Raul Arenal, Ileana Florea, Hector Barron, Amanda S. Barnard, Anna M. Henning, Chuan Zhao, Wolfgang Schuhmann, J. Justin Gooding, Richard D. Tilley

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Achieving stability with highly active Ru nanoparticles for electrocatalysis is a major challenge for the oxygen evolution reaction. As improved stability of Ru catalysts has been shown for bulk surfaces with low-index facets, there is an opportunity to incorporate these stable facets into Ru nanoparticles. Now, a new solution synthesis is presented in which hexagonal close-packed structured Ru is grown on Au to form nanoparticles with 3D branches. Exposing low-index facets on these 3D branches creates stable reaction kinetics to achieve high activity and the highest stability observed for Ru nanoparticle oxygen evolution reaction catalysts. These design principles provide a synthetic strategy to achieve stable and active electrocatalysts.

Original languageEnglish (US)
Pages (from-to)10241-10245
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number32
DOIs
StatePublished - Aug 6 2018

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Electrocatalysis
Nanostructures
Oxygen
Nanoparticles
Catalysts
Electrocatalysts
Reaction kinetics

Keywords

  • bimetallic nanoparticles
  • electrocatalysis
  • nanocrystals
  • oxygen evolution
  • ruthenium

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles : Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis. / Gloag, Lucy; Benedetti, Tania M.; Cheong, Soshan; Li, Yibing; Chan, Xuan Hao; Lacroix, Lise Marie; Chang, Lan-Yun; Arenal, Raul; Florea, Ileana; Barron, Hector; Barnard, Amanda S.; Henning, Anna M.; Zhao, Chuan; Schuhmann, Wolfgang; Gooding, J. Justin; Tilley, Richard D.

In: Angewandte Chemie - International Edition, Vol. 57, No. 32, 06.08.2018, p. 10241-10245.

Research output: Contribution to journalArticle

Gloag, L, Benedetti, TM, Cheong, S, Li, Y, Chan, XH, Lacroix, LM, Chang, L-Y, Arenal, R, Florea, I, Barron, H, Barnard, AS, Henning, AM, Zhao, C, Schuhmann, W, Gooding, JJ & Tilley, RD 2018, 'Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis', Angewandte Chemie - International Edition, vol. 57, no. 32, pp. 10241-10245. https://doi.org/10.1002/anie.201806300
Gloag, Lucy ; Benedetti, Tania M. ; Cheong, Soshan ; Li, Yibing ; Chan, Xuan Hao ; Lacroix, Lise Marie ; Chang, Lan-Yun ; Arenal, Raul ; Florea, Ileana ; Barron, Hector ; Barnard, Amanda S. ; Henning, Anna M. ; Zhao, Chuan ; Schuhmann, Wolfgang ; Gooding, J. Justin ; Tilley, Richard D. / Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles : Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis. In: Angewandte Chemie - International Edition. 2018 ; Vol. 57, No. 32. pp. 10241-10245.
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