TY - JOUR
T1 - Ultrasonic Synthesis of Al-SBA-15 Nanoporous Catalyst for t- Butylation of Ethylbenzene
AU - Prabhu, Azhagapillai
AU - Sudha, Venugopal
AU - Pachamuthu, Muthusamy Poomalai
AU - Sundaravel, Balachandran
AU - Bellucci, Stefano
N1 - Publisher Copyright:
© 2022 Azhagapillai Prabhu et al.
PY - 2022
Y1 - 2022
N2 - Mesoporous Al-SBA-15 (Si/Al=25) catalysts were synthesised by the ultrasonic (US) irradiation method at different time durations (1, 3, and 5 h) using the pluronic P123 triblock copolymer as a template. The synthesised catalysts were examined in detail by XRD, ICP-AES, N2 adsorption-desorption, SEM, TEM, FT-IR, and TGA characterization techniques. The characterization results reveal that the catalysts possess a well-ordered hexagonal mesoporous structure. The catalytic activity of synthesised materials was investigated in the tert-butylation of ethylbenzene at different reaction conditions, and their identified products are para-tert-butylethylbenzene (p-tert-BEB) and meta-tert-butylethylbenzene (m-tert-BEB). It was found that high ethylbenzene conversion (69%) is achieved at 200°C with high selectivity towards p-tert-butylethylbenzene (80%). The optimum feed ratio (ethylbenzene: t-butyl alcohol) was 1: 2, and the feed rate was 2 ml/h for high conversion and product selectivity. All these synthesised Al-SBA-15 (US) catalysts are compared with hydrothermally synthesised Al-SBA-15 (HT) at the same reaction conditions.
AB - Mesoporous Al-SBA-15 (Si/Al=25) catalysts were synthesised by the ultrasonic (US) irradiation method at different time durations (1, 3, and 5 h) using the pluronic P123 triblock copolymer as a template. The synthesised catalysts were examined in detail by XRD, ICP-AES, N2 adsorption-desorption, SEM, TEM, FT-IR, and TGA characterization techniques. The characterization results reveal that the catalysts possess a well-ordered hexagonal mesoporous structure. The catalytic activity of synthesised materials was investigated in the tert-butylation of ethylbenzene at different reaction conditions, and their identified products are para-tert-butylethylbenzene (p-tert-BEB) and meta-tert-butylethylbenzene (m-tert-BEB). It was found that high ethylbenzene conversion (69%) is achieved at 200°C with high selectivity towards p-tert-butylethylbenzene (80%). The optimum feed ratio (ethylbenzene: t-butyl alcohol) was 1: 2, and the feed rate was 2 ml/h for high conversion and product selectivity. All these synthesised Al-SBA-15 (US) catalysts are compared with hydrothermally synthesised Al-SBA-15 (HT) at the same reaction conditions.
UR - http://www.scopus.com/inward/record.url?scp=85126950283&partnerID=8YFLogxK
U2 - 10.1155/2022/2512223
DO - 10.1155/2022/2512223
M3 - Article
AN - SCOPUS:85126950283
SN - 1687-4110
VL - 2022
JO - Journal of Nanomaterials
JF - Journal of Nanomaterials
M1 - 2512223
ER -