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

doi:10.1002/anie.201806300

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

Core Facilities (CF)

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

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 language	English (US)
Pages (from-to)	10241-10245
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	32
DOIs	https://doi.org/10.1002/anie.201806300
State	Published - Aug 6 2018

Keywords

bimetallic nanoparticles
electrocatalysis
nanocrystals
oxygen evolution
ruthenium

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/anie.201806300

Cite this

Gloag, L., Benedetti, T. M., Cheong, S., Li, Y., Chan, X. H., Lacroix, L. M., Chang, L.-Y., Arenal, R., Florea, I., Barron, H., Barnard, A. S., Henning, A. M., Zhao, C., Schuhmann, W., Gooding, J. J., & Tilley, R. D. (2018). Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis. Angewandte Chemie - International Edition, 57(32), 10241-10245. https://doi.org/10.1002/anie.201806300

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

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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.",

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

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AU - Li, Yibing

AU - Chan, Xuan Hao

AU - Lacroix, Lise Marie

AU - Chang, Lan-Yun

AU - Arenal, Raul

AU - Florea, Ileana

AU - Barron, Hector

AU - Barnard, Amanda S.

AU - Henning, Anna M.

AU - Zhao, Chuan

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AU - Tilley, Richard D.

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KW - bimetallic nanoparticles

KW - electrocatalysis

KW - nanocrystals

KW - oxygen evolution

KW - ruthenium

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Three-Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis

Abstract

Keywords

ASJC Scopus subject areas

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