Synthesis, characterization and catalytic activity of a novel mesoporous aluminosilicate catalyst prepared by a citric acid route

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• 作者：Ling Xu ; Shujie Wu ; Jingqi Guan ; Yuanyuan Ma ; Ke Song ; Haiyan Xu ; Chen Xu ; Zhuqian Wang ; Qiubin Kan
• 关键词：Mesoporous aluminosilicate material ; Citric acid (CA) ; Alkylation ; Phenol ; tert-Butyl alcohol
• 刊名：Catalysis Communications
• 出版年：2008
• 出版时间：10 June 2008
• 年：2008
• 卷：9
• 期：10
• 页码：1970-1973
• 全文大小：277 K

文摘

A novel mesoporous aluminosilicate catalyst was synthesized using citric acid (CA) as pore-forming agent. XRD, TG-DTA, TEM and N₂ adsorption characterization results confirmed the presence of interconnected worm-like mesoporous structure in the novel mesoporous aluminosilicate catalyst. ²⁷Al MAS NMR and NH₃-TPD techniques suggested that most of Al was introduced into mesoporous framework and imparted acid sites. Catalytic test showed that the novel mesoporous aluminosilicate catalyst exhibited high catalytic activity for alkylation of phenol with tert-butanol. The excellent catalytic activity and high 2,4-di-TBP selectivity were mainly assigned to the acidity of the novel mesoporous aluminosilicate catalyst.