Publikationen

Carbon Nano-onions

Autor(en)
M. Eugenia Pérez-Ojeda, Edison Castro, Claudia Kröckel, Matteo Andrea Lucherelli, Ursula Ludacka, Jani Kotakoski, Katharina Werbach, Herwig Peterlik, Manuel Melle-Franco, Julio C. Chacón-Torres, Frank Hauke, Luis Echegoyen, Andreas Hirsch, Gonzalo Abellán
Abstrakt

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.

Organisation(en)
Physik Nanostrukturierter Materialien, Dynamik Kondensierter Systeme
Externe Organisation(en)
Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), University of Texas at El Paso, Universitat de València, University of Aveiro, Yachay Tech University
Journal
Journal of the American Chemical Society
Band
143
Seiten
18997–19007
Anzahl der Seiten
11
ISSN
0002-7863
DOI
https://doi.org/10.1021/jacs.1c07604
Publikationsdatum
11-2021
Peer-reviewed
Ja
ÖFOS 2012
210004 Nanomaterialien, 103018 Materialphysik
ASJC Scopus Sachgebiete
Catalysis, Chemistry(all), Biochemistry, Colloid and Surface Chemistry
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/carbon-nanoonions(98365ff2-65c1-481e-a710-0772dc46e82f).html