sp hybridization in free carbon nanoparticles—presence and stability observed by near edge X-ray absorption fine structure spectroscopy

Luca Ravagnan; Tommaso Mazza; Gero Bongiorno; Michele Devetta; Matteo Amati; Paolo Milani; Paolo Piseri; Marcello Coreno; Cristina Lenardi; Fabrizio Evangelista; Petra Rudolf

doi:10.1039/C0CC03778H

sp hybridization in free carbon nanoparticles—presence and stability observed by near edge X-ray absorption fine structure spectroscopy†‡

Luca Ravagnan,^a Tommaso Mazza,^a Gero Bongiorno,^a Michele Devetta,^a Matteo Amati,^a Paolo Milani,^a Paolo Piseri,*^a Marcello Coreno,^b Cristina Lenardi,^a Fabrizio Evangelista^c and Petra Rudolf^c

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* Corresponding authors

^a CIMAINA, Università degli Studi di Milano, V, ia Celoria 16, I-20133 Milano, Italy
E-mail: paolo.piseri@fisica.unimi.it

^b CNR-IMIP, Montelibretti (Rome) and Gas Phase Beamline ELETTRA, Area Science Park, I-34149 Trieste, Italy

^c Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands

Abstract

The presence and stability of sp hybridized atoms in free carbon nanoparticles was investigated by NEXAFS spectroscopy. The experiments show that a predominant fraction of carbon atoms is found in linear sp-chains and that conversion into sp² structures proceeds already at low temperature and in the gas phase.

This article is part of the themed collection: Carbon nanostructures

Chemical Communications

sp hybridization in free carbon nanoparticles—presence and stability observed by near edge X-ray absorption fine structure spectroscopy†‡

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sp hybridization in free carbon nanoparticles—presence and stability observed by near edge X-ray absorption fine structure spectroscopy

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