Figure 3
From: Heterogeneous-surface-mediated crystallization control

Various stages of the anisotropic growth of Ag2O on the heterogeneous surface. (a, b) Typical low-resolution scanning electron microscope (SEM) images taken at the intermediate and the final stages of reaction. (c–g) SEM images of the anisotropic growth of Ag2O at various stages for reaction time from 10 min to 2 h. (h–l) High-resolution SEM images of Ag2O nanowire obtained at the intermediate stage.