Cubic-Core Hexagonal-Branch Mechanism to Synthesize Bimetallic Branched and Faceted Pd-Ru Nanoparticles for Oxygen Evolution Reaction Electrocatalysis
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Gloag, Lucy
Benedetti, Tania M.
Cheong, Soshan
Marjo, Christopher E.
Gooding, J. Justin
Tilley, Richard D.
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A major synthetic challenge is to make metal nanoparticles with nanosized branches and well-defined facets for high-performance catalysts. Herein, we introduce a mechanism that uses the growth of hexagonal crystal structured branches off cubic crystal structured core nanoparticles. We control the growth to form Pd-core Ru-branch nanoparticles that have nanosized branches with low index Ru facets. We demonstrate that the branched and faceted structural features of the Pd-Ru nanoparticles retain high catalytic activity while also achieving high stability for the oxygen evolution reaction.
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Journal of the American Chemical Society
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