“…The complex/novel structures of inorganic materials from nanoscale to microscale size, including two dimensional, hierarchical and hollow structures, are of interest to chemists and materials scientists, [1][2][3][4] because of their unique structureinduced chemical and physical properties that may bring a series of opportunities for their potential application as sensors, [5][6][7] coatings, photoelectric devices 8,9 and chemical catalysis. [10][11][12] Specic structures may correspond to distinct performance, 13 and a single material with complex structure, or increasing the structural complexity of the material, may realize the invention of some unique optical, electrical, and surface properties. As expected, various methods, such as hard templates, so templates, as well as physical/chemical processes based on the Kirkendall effect, Ostwald ripening, chemically induced self-transformation, and so on, [14][15][16] have been devoted to constructing complex/hollow structures for different properties and applications.…”