Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (11): 1874-1882.DOI: 10.1016/S1872-2067(14)60167-4

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Preparation and catalytic performance of perfluorosulfonic acid-functionalized carbon nanotubes

Mengxiao Zhang, Cuican Li, Weiming Hua, Yinghong Yue, Zi Gao   

  1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China
  • Received:2014-05-03 Revised:2014-06-10 Online:2014-11-06 Published:2014-11-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (20773027, 20773028 and 21273043) and the Science & Technology Commission of Shanghai Municipality (08DZ2270500).

Abstract:

Perfluorosulfonic acid-functionalized carbon nanotubes were prepared by liquid deposition of the perfluorosulfonic acid-polytetrafluoroethylene copolymer and characterized by N2 adsorption, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, and acid-base titration. The effects of reaction temperature and the type of solvent were investigated. The results showed that these solid acids are very stable in both polar and non-polar solvents and can maintain their acidity up to 300 ℃. Higher activity and better stability were observed over these materials in the alkylation of hydroquinone compared with poly(styrene sulfonic acid)-grafted carbon nanotubes.

Key words: Carbon nanotube, Perfluorosulfonic acid, Acidity, Stability, Hydroquinone alkylation, tert-butanol