not-yet-known not-yet-known not-yet-known unknown 3.1 Morphology and Composition of As-prepared Materials According to the above preparation process, the ZMO nanowire structure was successfully prepared, as exhibited in Figure 2a-b . Interestingly, the nanowires are evenly agglomerated and grow outward, which is similar to sea urchin-like nanowires, and the lengths are about 2 μm. Figure 2c and d show the morphology of ZMOP-4. When ZMO nanowires were combined with PPy, the nanorod structure of PPy can affect the sea urchin-like ZMO nanowires and disrupt the growth mode of ZMO, but didn’t affect the original nanowire structure. To further explore the nanowire structure of ZMOP, TEM was used to observe its microscopic morphology. The microscopic morphology of ZMOP-4 can be seen from Figure 3a , among which, it is clear that the PPy presents a hollow nanotube structure with 40-50 nm diameters. Meanwhile, many solid ZnxMnO2 nanowires can also be observed, which are evenly distributed with PPy nanotubes, indicating the successful preparation of ZMOP-4.