XPS Demonstration of π−π Interaction between Benzyl Mercaptan and Multiwalled Carbon Nanotubes and Their Use in the Adhesion of Pt Nanoparticles

We have carried out the functionalization of multiwalled carbon nanotubes (MWCNTs) via π−π interaction with benzyl mercaptan. The presence of noncovalently bonded benzyl mercaptan was demonstrated by X-ray photoelectron spectroscopy, which revealed spectral changes indicating its π−π interaction wit...

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Bibliographic Details
Published in:Chemistry of materials 2006-10, Vol.18 (21), p.5033-5038
Main Authors: Yang, D.-Q, Hennequin, B, Sacher, E
Format: Article
Language:English
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Summary:We have carried out the functionalization of multiwalled carbon nanotubes (MWCNTs) via π−π interaction with benzyl mercaptan. The presence of noncovalently bonded benzyl mercaptan was demonstrated by X-ray photoelectron spectroscopy, which revealed spectral changes indicating its π−π interaction with the CNTs. The subsequent bonding of the thiol groups to both evaporated and chemically reduced Pt nanoparticles was demonstrated by the formation of strong Pt−S bonds in the Pt 4f and S 2p spectra. High-resolution transmission electron microscopy was used to confirm the Pt nanoparticle distribution along the walls of the CNTs.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm061256s