Figure 2

Characterisations.
(a), XRD profile. (b), Nitrogen sorption isotherms measured at 77 K. (c), Pore-size distribution and cumulative pore volume profiles calculated using NLDFT. (d), FE-SEM image. The CNT wires were covered by DTP-ANDI-COFs and some of the DTP-ANDI-COFs protruded from the CNT wires. (e)–(h), HR-TEM images at different magnifications ((e), A large-area image of DTP-ANDI-COF@CNTs. (f), An enlarged image of DTP-ANDI-COF@CNTs. (g), An HR image of the DTP-ANDI-COFs on CNTs. (h), An HR-TEM image of the contact between the DTP-ANDI-COFs and CNTs.