CJCU

Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (12): 1916.

• Articles • Previous Articles     Next Articles

Synthesis of Phenyl and Phenylsulphonic Acid Functionalized-MSU and Their Catalytic Performance

GONG Yan-Jun1, LI Ying1, WANG Shu-Guo1, WU Dong1, SUN Yu-Han1, DENG Feng2, YUE Yong2   

  1. 1. Shanxi Institute of Coal Chemistry, State Key Laboratory of Coal Chemistry Chinese Academy of Sciences, Taiyuan 030001, China;
    2. Wuhan Instituteof Physicsand Mathematics, State Key Laboratoryof Magnetic Resonanceand Atomic Molecular Physics, Chinese Academy of Sciences, Wuhan 430072, China
  • Received:1999-08-02 Online:2000-12-24 Published:2000-12-24

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Abstract: Aseries of phenyl-functionalized-MSUmesoporous molecular sieves were synthesized under neutral condition in the presence of biodegradable non-ionic polyethylene oxide(AEO9).By subsequent sulphonation of the phenyl rings attached to the silica framework, the phenylsulphonic acid functionalized MSUderivatives could be obtained.Their structure and property of the organo-modified mesoporous molecular sieves were studied by means of XRD, FT IR, TEM, HRTEM, 13C MAS NMR, 29Si MAS NMR, N2adsorption/desorption and probe reaction techniques.The results showed that the so-produced organo modified mesoporous molecular sieves featured bimodal pore size distribution and the pore channel was similar to those in the MSU(worm-like). The organo modified mesoporous molecular sieves containing phenylsulphonic acid active sites, used as solid acid catalyst, showed a much higher catalytic activity for the formation of2,2-pentamethylene1,3-dioxolane(cyclic ketal) from ethylene glycol and cyclohexanone

Key words: Organic functionalozatio, MSU mesoporous molecular sieves, Double pore distribution, Solid acid catalyst

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