Fig. 5From: Influencing Factor Investigation on Dynamic Hydrothermal Growth of Gapped Hollow BaTiO3 Nanospheres a−e SEM images of the BaTiO3 samples synthesized via a dynamic hydrothermal process at 180 °C for 10 h (R Ba/Ti = 1.2) with various NaOH concentrations: a 1.0 mol/L (S2), b 1.5 mol/L (S3), c 2.0 mol/L (S4), d 2.5 mol/L (S5), and e 3.0 mol/L (S6). f The change of the particle sizes of the BaTiO3 samples as function of NaOH concentrationsBack to article page