3D Hollow Mg-Ca-Al Hydrotalcite-Like Compounds Doped with KF for Catalytic Transesterification

Figure 3

FT-IR spectra of different load ratios of KF/Mg-Ca-Al HTLCs (Ca/Mg = 1 : 1, hydrothermal time: 24 h, and Mg-Ca-Al HTLCs calcined at 773 K).