fig1
Figure 1. (A) SEM image; (B and C) TEM image, inset: the needle diameter distribution; (D) XRD pattern image; (E) N2 adsorption isotherm of KCl/0.2/48 sample; and (F) pore size distribution in mesoporous segment. SEM: Scanning electron microscope; TEM: transmission electron microscope; XRD: X-ray diffraction.
