Figure 2
A series of small-angle X-ray diffraction profiles (scattering intensity versus length of scattering vector) during adsorption of C5F12 in SBA-15 for p/p0 = 0 (circle), 0.28 (square) and 0.87 (triangle). The curves are shifted vertically by a factor of three with respect to each other for the sake of clarity. The profile at p/p0 = 0.87 represents a state above capillary condensation where the intensity is lowered due to partial contrast matching of the liquid C5F12 with the SBA-15 matrix. |