Knoevenagel Condensation of Aldehydes with Ethyl Cyanoacetate in Water Catalyzed by P4VP/Al₂O₃-SiO₂

Table 1

BET surface area and pore size analysis of the samples.

Catalyst	BET surface area; (m^2/g)	Pore volume; (cm^3/g)	Average pore diameter; (nm)	𝐶 constant	𝑆BJH; (m^2/g)
Al2O3-SiO2(0.6)	45.5	0.17	15.48	137.93	36.29
P4VP/Al2O3-SiO2(0.6) (in-situ)	20.8	0.20	39.04	103.15	14.80