Here, in situ TEM observations of the double-wall TiO2 nanotube arrays were performed at various temperatures under the introduction of oxygen gas.21 Figure 7 shows the morphological changes of the nanotubes.
Here, in situ TEM observations of the double-wall TiO2 nanotube arrays were performed at various temperatures under the introduction of oxygen gas.21 Figure 7 shows the morphological changes of the nanotubes.