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Open AccessArticle

A Simple Method for Anchoring Silver and Copper Nanoparticles on Single Wall Carbon Nanotubes

Institute for Polymers and Composites, University of Minho—Campus of Azurém, 4800-058 Guimarães, Portugal
National Graphene Institute and School of Materials, University of Manchester, Manchester M13 9PL, UK
Centre of Chemistry, University of Minho—Campus of Gualtar, 4710-057 Braga, Portugal
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1416;
Received: 11 September 2019 / Revised: 30 September 2019 / Accepted: 1 October 2019 / Published: 4 October 2019
Single walled carbon nanotubes (SWCNT) were functionalized using the 1,3-dipolar cycloaddition reaction of an azomethine ylide under solvent-free conditions, a one-pot procedure that yields pyrrolidine type of groups at the nanotubes surface. The functionalized SWCNT were further decorated with Ag and Cu nanoparticles by reduction of the corresponding metal salts in dimethylformamide. The extensive reduction of silver from its nitrate was observed, as well as the partial reduction of copper from its acetate. X-ray photoelectron spectroscopy (XPS) confirmed the functionalization of SWCNT with pyrrolidine that provided anchoring sites for the metal nanoparticles. Metal nanoparticles (NP) were formed at the surface of the organically functionalized SWCNT in higher yields as compared to the same procedure carried out with pristine SWCNT. This was observed using scanning electron microscopy (SEM) and quantified by XPS. Raman spectroscopy demonstrated that functionalization and metal decoration of the SWCNT did not induce structural damage to the SWCNT. View Full-Text
Keywords: 1,3-dipolar cycloaddition; functionalization of SWCNT; metal anchoring 1,3-dipolar cycloaddition; functionalization of SWCNT; metal anchoring
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MDPI and ACS Style

M. Silva, M.; Ribeiro, D.; Cunha, E.; Proença, M.F.; Young, R.J.; Paiva, M.C. A Simple Method for Anchoring Silver and Copper Nanoparticles on Single Wall Carbon Nanotubes. Nanomaterials 2019, 9, 1416.

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