ChemCatChem
ChemCatChem
4 years ago

Electrocatalytic Properties of Cuprous Delafossite Oxides for the Alkaline Oxygen Reduction Reaction

Electrocatalytic Properties of Cuprous Delafossite Oxides for the Alkaline Oxygen Reduction Reaction
Yiying Wu, Thomas I. Draskovic
Inspired by the oxygen-binding copper sites in biomolecules, a series of cuprous delafossite oxides (CuBO2; B=Sc, Y, La) with similar interatomic copper distances were utilized as electrocatalysts for the oxygen reduction reaction (ORR). The carbon-supported oxides showed improved onset potential, current, and electron-transfer number over carbon black, with CuLaO2 having the highest prevalence of the complete four-electron reduction. The oxygen electrocatalytic activity of the copper site in delafossite oxides was demonstrated. Good to C-u: Inspired by the oxygen-binding copper sites in biomolecules, a series of layered cuprous delafossite oxides with various interatomic copper distances are demonstrated as electrocatalysts for the oxygen reduction reaction.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/cctc.201700712

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