Figure 3From: Confined conversion of CuS nanowires to CuO nanotubes by annealing-induced diffusion in nanochannels TEM images of a single CuS nanowire. (a) and CuO nanotube (c) with a diameter of 50 nm. The insets in (a, c) are the electron diffraction patterns of the CuS nanowire and CuO nanotube. HRTEM images of CuS nanowire (b), and CuO nanotube (d).Back to article page