Functionalized carbon nanofibers as solid-acid catalysts for transesterification

D.R. Stellwagen, F. van der Klis, D.S. van Es, K.P. de Jong, J.H. Bitter

Research output: Contribution to journalArticleAcademicpeer-review

44 Citations (Scopus)


Carbon nanofibers (CNFs) were functionalized with aryl sulfonic acid groups using in situ diazonium coupling. The use of diazonium coupling yielded an acidic carbon material, in which the introduced acidic groups are readily accessible to the triglyceride substrate. The material is an efficient catalyst for the transesterification of triolein and methanol, outperforming conventional sulfonated carbons in both stability and activity per acid site. Upon comparing CNFs with varying degrees of functionalization, a linear correlation between sulfonic acid sites and catalytic performance was found.
Original languageEnglish
Pages (from-to)1668-1672
Issue number9
Publication statusPublished - 2013


  • ordered mesoporous carbon
  • heterogeneous catalysts
  • biodiesel
  • nanotubes
  • chemistry
  • black
  • ions
  • oils


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