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- W4200340766 abstract "Moving towards a hydrogen economy raises the demand for affordable and efficient catalysts for the oxygen reduction reaction. Cu-bmpa (bmpa = bis(2-picolyl)amine) is shown to have moderate activity, but poor selectivity for the 4-electron reduction of oxygen to water. To enhance the selectivity towards water formation, the cooperative effect of three Cu-bmpa binding sites in a single trinuclear complex is investigated. The catalytic currents in the presence of the trinuclear sites are lower, possibly due to the more rigid structure and therefore higher reorganization energies and/or slower diffusion rates of the catalytic species. Although the oxygen reduction activity of the trinuclear complexes is lower than that of mononuclear Cu-bmpa, the selectivity of the copper mediated oxygen reduction was significantly enhanced towards the 4-electron process due to a cooperative effect between three copper centers that have been positioned in close proximity. These results indicate that the cooperativity between metal ions within biomimetic sites can greatly enhance the ORR selectivity." @default.
- W4200340766 created "2021-12-31" @default.
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- W4200340766 creator A5014354152 @default.
- W4200340766 creator A5014599352 @default.
- W4200340766 date "2022-01-01" @default.
- W4200340766 modified "2023-09-27" @default.
- W4200340766 title "Influence of the spatial distribution of copper sites on the selectivity of the oxygen reduction reaction" @default.
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- W4200340766 doi "https://doi.org/10.1039/d1dt03296h" @default.
- W4200340766 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34951437" @default.
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