fig1
Figure 1. (A) Synthesis process schematic of NbN/C composite. (B) XRD pattern of NbN/C. (C) Band gap of NbN through DFT calculation. (D) SEM image and (E) TEM image of as-synthesized NbN/C. (F) N2 adsorption-desorption isotherms of NbN/C, inset: pore size distribution based on the BJH method.
