Figure 4 .
Structural characteristics of the two different mesophases studied. (a) Powder X-ray diffraction (PXRD) pattern of a typical S-MSP structure with hexagonally arranged pores (lattice spacing = 4.7 nm), (b) PXRD pattern of NR-MSP exhibiting hexagonal order with lattice spacing of 14.8 nm, (c) N2-sorption isotherm for S-MSP and (d) N2-sorption isotherm for NR-MSP, both of characteristic IUPAC type IV for mesoporous materials.
Karaman et al. Nanoscale Research Letters 2012 7:358 doi:10.1186/1556-276X-7-358