Template Synthesis of Multishelled Cu2O Hollow Spheres with a Single‐Crystalline Shell Wall

Shells within shells: Simply varying the concentration of the cetyltrimethylammonium bromide surfactant in a template process leads to single-, double-, triple-, and quadruple-shelled Cu2O hollow spheres (see TEM image). Thus, the vesicle-directed synthesis of inorganic multishelled hollow spheres is feasible.