4.5 Article

Temperature electrolyte influences on the phase composition of anodic CuOx nanostructures

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DOI: 10.1016/j.physe.2022.115533

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CuO; Cu2O; Nanostructures; Anodising; Photocurrent

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This study investigates the effect of electrolyte solution temperature on the morphology and properties of CuOx nanostructures. The results show that increasing temperature leads to the formation of CuO nanosheets instead of Cu(OH)2 nanorods. Additionally, the degree of light reflection decreases with higher electrolyte temperature.
In this work, the effect of the electrolyte solution temperature on the morphology, phase composition, and photoelectrochemical properties of CuOx nanostructures were investigated. It has been shown that rising tem-peratures do not form the well-studied Cu(OH)2 nanorods, but CuO nanosheets 5-7 nm thick, layered on top of each other. The obtained copper oxide nanostructures possess the CuO crystal structure immediately after anodising. As the temperature of the electrolyte increases, the degree of light reflection decreases in the wavelength range from 190 to 1100 nm, with a maximum of 1.25%.

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