Figure 5From: Self-Assembled 3D Flower-Like Hierarchical β-Ni(OH)2Hollow Architectures and their In Situ Thermal Conversion to NiOXRD patterns of the as-obtainedβ-Ni(OH)2samples calcined at different temperatures for 4 h: (a) 300 °C and (b) 500 °CBack to article page