Abstract
β-Ni(OH)2 and NiO nanostructured films were prepared on fluorine-doped tin oxide (FTO) glass substrates by using chemical bath deposition (CBD) at different concentrations of a complexing agent (i.e., NH3). The as-deposited β-Ni(OH)2 films exhibited various porous structures, such as nanoislands, nanoflakes, nanosheets and nanoplatelets, depending on the concentration of the complexing agent, and they could be converted to NiO films by using calcination. The β-Ni(OH)2 and the NiO films were characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS). Importantly, the electrochemical activity of NiO nanoplatelet-films for the oxygen evolution reaction (OER) was also investigated as a function of the annealing temperature.
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Acknowledgments
This research was supported by a Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Trade, Industry and Energy (MTIE) of Korea (No. 20193020010440) and by Chung-Ang University Research Scholarship Grants in 2018.
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Park, M., Shin, E., Hong, J. et al. β-Ni(OH)2 and NiO Nanostructured Films Prepared by Using Chemical Bath Deposition for the Oxygen Evolution Reaction. J. Korean Phys. Soc. 77, 1248–1252 (2020). https://doi.org/10.3938/jkps.77.1248
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DOI: https://doi.org/10.3938/jkps.77.1248