Undoped and Li-Doped NiO Coral Reef-like Structures Fabricated using Immersion MethodNor Amirah Ladjahirin, Norfarariyanti Parimon, Mohamad Hafiz Mamat, Mohd Firdaus Malek and Muhammad Nur Afnan UdaMATEC Web Conf., 397 (2024) 03001DOI: https://doi.org/10.1051/matecconf/202439703001