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- W2999683996 abstract "Electrocatalytic reduction reactions (i.e., the hydrogen evolution reaction (HER) and oxygen reduction reaction) at individual, faceted Au nanocubes (NCs) and nano-octahedra (ODs) expressing predominantly {100} and {111} crystal planes on the surface, respectively, were studied by nanoscale voltammetric mapping. Cyclic voltammograms were collected at individual nanoparticles (NPs) with scanning electrochemical cell microscopy (SECCM) and correlated with particle morphology imaged by electron microscopy. Nanoscale measurements from a statistically informative set of individual NPs revealed that Au NCs have superior HER electrocatalytic activity compared to that of Au ODs, in good agreement with macroscale cyclic voltammetry measurements. Au NCs exhibited more particle-to-particle variation in catalytic activity compared to that with Au ODs. The approach of single-particle SECCM imaging coupled with macroscale CV on well-defined NPs provides a powerful toolset for the design and activity assessment of nanoscale electrocatalysts." @default.
- W2999683996 created "2020-01-23" @default.
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- W2999683996 date "2020-01-09" @default.
- W2999683996 modified "2023-10-07" @default.
- W2999683996 title "Probing Single-Particle Electrocatalytic Activity at Facet-Controlled Gold Nanocrystals" @default.
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- W2999683996 doi "https://doi.org/10.1021/acs.nanolett.9b04640" @default.
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