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- Title
Preparation and characterization of multi-walled carbon nanotubes (MWCNTs), functionalized with phosphonic acid (MWCNTs-C-POH) and its application as a novel, efficient, heterogeneous, highly selective and reusable catalyst for acetylation of alcohols, phenols, aromatic amines, and thiols
- Authors
Dehghani, Farzaneh; Sardarian, Ali; Doroodmand, Mohammad
- Abstract
A novel, efficient, heterogeneous, and reusable multi-walled carbon nanotubes (MWCNTs), functionalized with phosphonic acid (MWCNTs-C-POH) has been synthesized. The synthesized CNTs were characterized using some electron microscopic techniques such as scanning electron microscopy (SEM), atomic force microscopy (AFM), Energy dispersive X-ray spectroscopy (EDAX), and also some thermal and spectroscopic methods such as thermogravimetry (TG). The nitrogen adsorption behavior of the MWCNTs-C-POH catalyst was evaluated using the TG instrumentation system at 25 °C. The catalyst was applied successfully for highly efficient and selective acetylation of alcohols, phenols, thiols and aromatic amines with acetic anhydride at room temperature under solvent-free conditions. The reusability of the catalyst was checked and the recovered catalyst was reused for five runs without significant loss in activity.
- Subjects
MULTIWALLED carbon nanotubes; PHOSPHONIC acids; HETEROGENEOUS catalysts; CATALYSTS recycling; ACETYLATION; CHEMICAL synthesis
- Publication
Journal of the Iranian Chemical Society, 2014, Vol 11, Issue 3, p673
- ISSN
1735-207X
- Publication type
Article
- DOI
10.1007/s13738-013-0339-9