“…In recent years, the morphology and size controlled synthesis of materials have attracted much attention due to their unique chemical and physical properties that are relevant to the shape and size [1][2][3][4][5][6]. Considerable efforts have been devoted to synthesize novel nano-and microstructured materials with various morphologies, such as low-dimensional structures (e.g., rods [7], wires [8,9], belts [10], tubes [11]) and hierarchical structures (e.g., branches [12], urchins [13], hollow spheres [14,15]), for their specific properties and corresponding potential applications.…”