Research Article

Synthesis, Characterization, and Catalytic Activity of Pd(II) Salen-Functionalized Mesoporous Silica

Figure 5

N2 adsorption-desorption isotherms of the silica-based materials: (a) SiO2, (b) SiO2@ imineSA, (c) SiO2@ imineSB, (d) SiO2@ imineSA-Pd-II, (e) SiO2@ imineSB-Pd-II, (f) SiO2@ imineSA-Pd-I, (g) SiO2, (h) SiO2@ imineNA, (i) SiO2@ imineNB, (j) SiO2@ imineNA-Pd-II, and (k) SiO2@ imineNB-Pd-II.