Issue 27, 2014

Alkaline O2 reduction on oxide-derived Au: high activity and 4e selectivity without (100) facets

Abstract

Gold films produced from gold oxide precursors (“oxide-derived Au”) were compared to polyhedral Au nanoparticles for electrocatalytic alkaline O2 reduction. Despite having no detectable abundance of (100) facets, oxide-derived Au exhibited 4e selectivity and surface-area-normalized activity that rivaled cubic Au nanoparticles with high (100) abundance. The activity of oxide-derived Au likely arises from active sites at the surface terminations of defects that are trapped during gold oxide reduction.

Graphical abstract: Alkaline O2 reduction on oxide-derived Au: high activity and 4e− selectivity without (100) facets

Supplementary files

Article information

Article type
Communication
Submitted
27 mar 2014
Accepted
12 maj 2014
First published
13 maj 2014

Phys. Chem. Chem. Phys., 2014,16, 13601-13604

Author version available

Alkaline O2 reduction on oxide-derived Au: high activity and 4e selectivity without (100) facets

X. Min, Y. Chen and M. W. Kanan, Phys. Chem. Chem. Phys., 2014, 16, 13601 DOI: 10.1039/C4CP01337A

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