Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (9): 1747-1752.doi: 10.3866/PKU.WHXB201506012

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Effect of the Carbon Precursor on the Design of Perfluorosulfonic Acid Functionalized Carbon Catalysts

Cui-Can. LI,Meng-Xiao. ZHANG,Wei-Ming. HUA,Ying-Hong. YUE*(),Zi. GAO   

  • Received:2015-04-16 Published:2015-09-06
  • Contact: Ying-Hong. YUE E-mail:yhyue@fudan.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21273043)

Abstract:

Perfluorosulfonic acid functionalized carbon-based solid acid catalysts were prepared by liquid deposition of perfluorosulfonic acid-polytetrafluoroethylene (PTFE) copolymer using carbon nanotubes, mesoporous carbon molecular sieves, and nitrogen-doped mesoporous carbon as precursors. The obtained catalysts were characterized by N2 adsorption, thermogravimetric analysis (TG), transmission electron microscope (TEM), Fourier transform Infrared (FTIR) spectrometer, and potentiometric titration. Their catalytic behavior in the Friedel-Crafts (F-C) alkylation of anisole was also investigated. It was found that the surface area of the precursor and its interaction with perfluorosulfonic acid play important roles in the preparation of highly active catalysts. The highest activity as well as the best stability was observed over perfluorosulfonic acid functionalized nitrogen-doped mesoporous carbon.

Key words: Carbon-based solid acid, Perfluorosulfonic acid, Acidity, Stability, Friedel-Crafts alkylation

MSC2000: 

  • O643