Figure 6From: Self-Assembled 3D Flower-Like Hierarchical β-Ni(OH)2Hollow Architectures and their In Situ Thermal Conversion to NiOa SEM image of double typical 3D flower-like hierarchical NiO architectures;b–c the corresponding enlarged SEM images of the area marked with a red rectangle. Insetc is a high-magnification TEM image of a sheet;d EDS result of the as-obtainedβ-Ni(OH)2samples calcined at 500 °C for 4 h. Inset ofd shows SAED pattern of the NiO nanosheetBack to article page