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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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| Authors: | Ravagnan Luca Mazza Tommaso Bongiorno Gero Devetta Michele Amati Matteo Milani Paolo Piseri Paolo Coreno Marcello Lenardi Cristina Evangelista Fabrizio Rudolf Petra |
| Institution: | CIMAINA, Università degli Studi di Milano, V, ia Celoria 16, I-20133 Milano, Italy. |
| 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 sp(2) structures proceeds already at low temperature and in the gas phase. |
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