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- W2979933807 abstract "Abstract In this work, spinel Cu x Co 3-x O 4 (x = 0.00, 0.50, 1.00, 1.50) was synthesized through a typical ethanol-assisted hydrothermal route. The effect of the incorporation of copper on the resulting morphology, structure, and oxygen evolution reaction (OER) activity of the spinel Co oxides was investigated. In general, Cu-doped samples exhibited improved OER activity associated to the reduction of electrical resistivity of the spinel due to the presence of Cu 2+ into the lattice. Further, the ionic bonding of OH − with Cu 2+ is weaker relative to the Co 3+ ions at the octahedral sites, which could have facilitated OER better. Among the Cu concentration experimented, Cu 0.5 Co 2.5 O 4 exhibited the best OER catalytic with an onset overpotential and Tafel slope of about 271 mV and 100.4 mV·dec −1 , respectively. This is attributed to its better conductivity due to the absence of a resistive secondary CuO phase." @default.
- W2979933807 created "2019-10-18" @default.
- W2979933807 creator A5068461892 @default.
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- W2979933807 date "2019-09-01" @default.
- W2979933807 modified "2023-10-01" @default.
- W2979933807 title "Hierarchical Urchin-like Spinel Cu<sub>x</sub>Co<sub>3-x</sub>O<sub>4</sub> Particles as Oxygen Evolution Reaction Catalysts in Alkaline Medium" @default.
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- W2979933807 doi "https://doi.org/10.1088/1757-899x/617/1/012004" @default.
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