The morphology of OMC was characterized by TEM. Fig. 1A clearly displays highly ordered carbon nanowires viewed from the [1 0 0] direction, showing the mesopore range of 4–5 nm.
And Fig. 1B observed from the [0 0 1] also exhibits the hexagonal honeycomb-like arrangement of mesopores. It can be seen that the structure of OMCs is accurately an inverse replica of their template SBA-15