Novel efficient synthesis of β-naphthyl methyl ether using sulfated mesoporous molecular sieve Al-MCM-41

Tunghai University Institutional Repository > 理學院 > 化學系所 > 期刊論文 > Item 310901/21298

Please use this identifier to cite or link to this item: http://140.128.103.80:8080/handle/310901/21298

Title:	Novel efficient synthesis of β-naphthyl methyl ether using sulfated mesoporous molecular sieve Al-MCM-41
Authors:	Chen, L.-W., Chou, C.-Y., Ko, A.-N.
Contributors:	Department of Chemistry, Tunghai University
Keywords:	β-Naphthol;β-Naphthyl methyl ether;Mesoporous molecular sieve;Methanol;Sulfated Al-MCM-41
Date:	1999
Issue Date:	2013-05-14T09:04:38Z (UTC)
Abstract:	The mesoporous molecular sieve Al-MCM-41 and sulfated Al-MCM-41 were prepared and characterized with various techniques: XRD, ICP-AES, BET, 27Al and 29Si MAS-NMR, FTIR, TPD of ammonia and N2 adsorption isotherms. Impregnation of Al-MCM-41 with sulfuric acid results in the decrease of crystallinity, surface area, pore volume and the expelling of aluminum from the Al-MCM-41 framework, with concomitant increase of the Lewis acidity. β-Naphthyl methyl ether was synthesized from β-naphthol and methanol at 200°C and 35 bar over Al-MCM-41 and sulfated Al-MCM-41 in a batch autoclave reactor. The catalytic results were compared with those obtained by using sulfuric acid, amorphous silicaalumina, γ-alumina, USY and H-ZSM-5 zeolites. The sulfated Al-MCM-41 catalyst forms the exclusive product of β-naphthyl methyl ether and has much higher yields than other catalysts except USY. The non-framework aluminum existing in the intrachannel space of Al-MCM-41 probably causes the enhancement of catalyst activity. The catalytic results are correlated to the acidity, the surface area and the pore size of the catalysts. ? 1999 Elsevier Science B.V. All rights reserved.
Relation:	Applied Catalysis A: General Volume 178, Issue 1, 1999, Pages L1-L6
Appears in Collections:	[化學系所] 期刊論文

Files in This Item:

File	Size	Format
index.html	0Kb	HTML	158	View/Open

Loading...