Ultrasonic Synthesis of Al-SBA-15 Nanoporous Catalyst for t-Butylation of Ethylbenzene

Table 1

Structural and textural parameters of Al-SBA-15 (25).

Catalyst	d-Spacing (nm)	(nm)	Si/Al^2 (gel)	SBET^3 (m^2 g^-1)	Vp^4 (cm^3 g^-1)	(nm)
Al-SBA-15 (US-1 h)	7.14	16.42	29	728	1.07	6.1
Al-SBA-15 (US-3 h)	7.37	17.02	28	780	1.11	6.5
Al-SBA-15 (US-5 h)	7.49	17.45	29	804	1.23	6.7
Al-SBA-15 (HT)	8.47	19.56	28	699	1.15	7.8

¹Unit cell parameter calculated from the formula . ²ICP-AES. ³Specific surface area. ⁴Pore volume. ⁵Pore diameter.