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Hollow graphitic carbon nanospheres (HGCNSs) obtained by treatment of iron carbide-filled carbon nanocapsules were investigated using the ultra-soft X-ray emission spectroscopy method. Carbon nanocapsules were synthesized by the plasma discharge method in an ultrasonic cavitation field of liquid hexane. It was revealed that additional mixed π + σ-overlapping occurred in the hollow graphitic carbon nanospheres as a result of the bending of the graphene sheets. Some iron atoms remained after washing in acid. It was found that in the hollow graphitic carbon nanospheres, sp-hybrid bonds formed between the carbon and residual iron atoms when high-energy 3d + 4s-states overlapped with spn-hybrid orbitals (2 < n < 3). Scanning and transmission electron microscopy methods were used to study the spatial morphology and structure of the fabricated HGCNSs. The electronic structures of the HGCNSs were compared with those of reference synthetic graphite powder, carbon onions, and graphene nanosheets.

Titel:	Synthesis, characterization and X-ray spectral investigation of hollow graphitic carbon nanospheres
Autor/in / Beteiligte Person:	ILKIV, Bogdan ; PETROVSKA, Svitlana ; SERGIIENKO, Ruslan ; FOYA, Oleksandr ; ILKIV, Oleksandra ; SHIBATA, Etsuro ; NAKAMURA, Takashi ; ZAULYCHNYY, Yaroslav
Link:	View record from ScienceDirect (Volltext) View record from PASCAL Archive
Zeitschrift:	Journal of alloys and compounds, Jg. 617 (2014), S. 616-621
Veröffentlichung:	Kidlington: Elsevier, 2014
Medientyp:	academicJournal
Umfang:	print, 23 ref
ISSN:	0925-8388 (print)
Schlagwort:	Inorganic chemistry Chimie minérale Crystallography Cristallographie cristallogenèse Metallurgy, welding Métallurgie, soudage Condensed state physics Physique de l'état condensé Sciences exactes et technologie Exact sciences and technology Physique Physics Etat condense: structure electronique, proprietes electriques, magnetiques et optiques Condensed matter: electronic structure, electrical, magnetic, and optical properties Structure électronique et propriétés électriques des surfaces, interfaces, couches minces et structures de basse dimensionnalité Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Structure électronique des nanomatériaux : agrégats, nanoparticules, nanotubes et nanocristaux Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals Domaines interdisciplinaires: science des materiaux; rheologie Cross-disciplinary physics: materials science; rheology Science des matériaux Materials science Méthodes de nanofabrication Methods of nanofabrication Méthodes de synthèse chimique Chemical synthesis methods Carbure de fer Iron carbide Hierro carburo Cavitation Forme creuse Hollow shape Forma hueca Graphite Graphène Graphene Liaison chimique Chemical bonds Microstructure Nanocapsule Nanocápsula Rayon X mou Soft X radiation Spectre émission RX X-ray emission spectra Structure électronique Electronic structure Synthèse nanomatériau Nanomaterial synthesis Síntesis nanomaterial Ultrason Ultrasonic waves Hollow carbon nanosphere Scanning electron microscopy (SEM) Transmission electron microscopy (TEM) X-ray emission spectroscopy
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Frantsevich Institute for Problems of Materials Science, 3 Krzhyzhanivsky Str., Kyiv 03680, Ukraine ; Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai 980-8577, Japan ; Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 34/1 Vernadsky Ave., Kyiv 142 03680, Ukraine ; National Technical University of Ukraine Kyiv Polytechnic Institute, Engineering-Physical Faculty, 35 Polytekchnichna Str., Kyiv 03056, Ukraine Rights: Copyright 2015 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Physics and materials science ; Physics of condensed state: electronic structure, electrical, magnetic and optical properties

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Synthesis, characterization and X-ray spectral investigation of hollow graphitic carbon nanospheres