Fig. 2From: Influencing Factor Investigation on Dynamic Hydrothermal Growth of Gapped Hollow BaTiO3 NanospheresTEM observations of the gapped hollow BaTiO3 nanospheres (S1) obtained via dynamically hydrothermal treatment at 180 °C for 20 h with [NaOH] = 1.0 mol/L and R Ba/Ti = 1.2, a−c TEM images with various magnifications, and d SAED patternBack to article page