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Electrocatalytic Properties of Cuprous Delafossite Oxides for the Alkaline Oxygen Reduction Reaction
被引:11
作者:
Draskovic, Thomas I.
[1
]
Wu, Yiying
[1
]
机构:
[1] Ohio State Univ, Dept Chem & Biochem, 100 West 18th Ave, Columbus, OH 43210 USA
来源:
关键词:
copper;
electrochemistry;
heterogeneous catalysis;
oxygen;
reduction;
METAL-AIR BATTERIES;
HYDROTHERMAL SYNTHESIS;
EVOLUTION REACTION;
MODEL COMPLEXES;
ELECTROCHEMICAL CHARACTERIZATION;
BIFUNCTIONAL ELECTROCATALYST;
MULTICOPPER OXIDASES;
COPPER OXIDASE;
FUEL-CELLS;
CATALYSTS;
D O I:
10.1002/cctc.201700712
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
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.
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页码:3837 / 3842
页数:6
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