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Carbon Nano-onions: Potassium Intercalation and Reductive Covalent Functionalization

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Carbon Nano-onions: Potassium Intercalation and Reductive Covalent Functionalization

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dc.contributor.author	Pérez-Ojeda, M. Eugenia
dc.contributor.author	Castro, Edison
dc.contributor.author	Kröckel, Claudia
dc.contributor.author	Lucherelli, Matteo Andrea
dc.contributor.author	Ludacka, Ursula
dc.contributor.author	Kotakoski, Jani
dc.contributor.author	Werbach, Katharina
dc.contributor.author	Peterlik, Herwig
dc.contributor.author	Melle-Franco, Manuel
dc.contributor.author	Chacón-Torres, Julio C.
dc.contributor.author	Hauke, Frank
dc.contributor.author	Echegoyen, Luis
dc.contributor.author	Hirsch, Andreas
dc.contributor.author	Abellán Sáez, Gonzalo
dc.date.accessioned	2021-11-16T14:06:07Z
dc.date.available	2021-11-16T14:06:07Z
dc.date.issued	2021
dc.identifier.citation	Pérez-Ojeda, M. Eugenia Castro, Edison Kröckel, Claudia Lucherelli, Matteo Andrea Ludacka, Ursula Kotakoski, Jani Werbach, Katharina Peterlik, Herwig Melle-Franco, Manuel Chacón-Torres, Julio C. Hauke, Frank Echegoyen, Luis Hirsch, Andreas Abellán Sáez, Gonzalo 2021 Carbon Nano-onions: Potassium Intercalation and Reductive Covalent Functionalization Journal of the American Chemical Society
dc.identifier.uri	https://hdl.handle.net/10550/80750
dc.description.abstract	Herein we report the synthesis of covalently functionalized carbon nano-onions (CNOs) via a reductive approach using unprecedented alkali-metal CNO intercalation compounds. For the first time, an in situ Raman study of the controlled intercalation process with potassium has been carried out revealing a Fano resonance in highly doped CNOs. The intercalation was further confirmed by electron energy loss spectroscopy and X-ray diffraction. Moreover, the experimental results have been rationalized with DFT calculations. Covalently functionalized CNO derivatives were synthesized by using phenyl iodide and n-hexyl iodide as electrophiles in model nucleophilic substitution reactions. The functionalized CNOs were exhaustively characterized by statistical Raman spectroscopy, thermogravimetric analysis coupled with gas chromatography and mass spectrometry, dynamic light scattering, UV-vis, and ATR-FTIR spectroscopies. This work provides important insights into the understanding of the basic principles of reductive CNOs functionalization and will pave the way for the use of CNOs in a wide range of potential applications, such as energy storage, photovoltaics, or molecular electronics.
dc.language.iso	eng
dc.relation.ispartof	Journal of the American Chemical Society, 2021
dc.subject	Materials nanoestructurats
dc.subject	Espectroscòpia Raman
dc.title	Carbon Nano-onions: Potassium Intercalation and Reductive Covalent Functionalization
dc.type	journal article	es_ES
dc.date.updated	2021-11-16T14:06:08Z
dc.identifier.doi	10.1021/jacs.1c07604
dc.identifier.idgrec	148907
dc.rights.accessRights	open access	es_ES