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Electrocatalytic Properties of Cuprous Delafossite Oxides for the Alkaline Oxygen Reduction Reaction
Author(s) -
Draskovic Thomas I.,
Wu Yiying
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700712
Subject(s) - delafossite , copper , oxygen , chemistry , inorganic chemistry , redox , electron transfer , electrocatalyst , oxygen reduction reaction , catalysis , oxide , carbon fibers , oxygen reduction , materials science , photochemistry , electrochemistry , organic chemistry , electrode , composite material , composite number
Inspired by the oxygen‐binding copper sites in biomolecules, a series of cuprous delafossite oxides (CuBO 2 ; 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 CuLaO 2 having the highest prevalence of the complete four‐electron reduction. The oxygen electrocatalytic activity of the copper site in delafossite oxides was demonstrated.