Phenylsulfonic Acid Functionalized Porous Phosphate Heterostructure Materials as Strong Solid Acids

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 731.

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Phenylsulfonic Acid Functionalized Porous Phosphate Heterostructure Materials as Strong Solid Acids

LI Ying, LIU Ke, HUA Wei-Ming, YUE Ying-Hong*, GAO Zi

Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

Received:2010-10-11 Revised:2010-11-28 Online:2011-03-10 Published:2011-02-23
Contact: YUE Ying-Hong E-mail:yhyue@fudan.edu.cn
Supported by:
国家“九七三”计划项目(批准号: 2006CB806103)、国家自然科学基金(批准号: 20633030, 20773027, 20773028)和上海市科学技术委员会基金(批准号: 08DZ2270500)资助.

Abstract

Abstract: A series of phenylsulfonic acid functionalized porous phosphate heterostructure (PPH) materials were prepared by co-condensation method and characterized by SEM, FT-IR, 29Si MAS NMR, TG and N2 adsorption. Their catalytic behavior for alkylation of hydroquinone with tert-butanol was compared. ZrP-0.4-2-10%-PhSO3H is a more active catalyst for the reaction in comparison to others. The conversion of hydroquinone and yield of 2-tert-butylhydroquinone on the catalyst reach 85.4% and 58.5% at 150 oC. The activity correlates well with the amount of the accessible acid sites on its surface. The catalyst is stable and reusable, and the product yield is only reduced by 10% after four runs. The reduction in activity is probably caused by leaching of phenylsulfonic group or deposition of coke on the active sites.

Key words: Zirconium phosphate, phenylsulfonic acid, alkylation, accessible acid sites

CLC Number:

O643.3

TrendMD:

LI Ying, LIU Ke, HUA Wei-Ming, YUE Ying-Hong*, GAO Zi. Phenylsulfonic Acid Functionalized Porous Phosphate Heterostructure Materials as Strong Solid Acids[J]. Chem. J. Chinese Universities, 2011, 32(3): 731.

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Phenylsulfonic Acid Functionalized Porous Phosphate Heterostructure Materials as Strong Solid Acids

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