Effect of the structure and morphology of natural, synthetic and post-processed graphites on their dispersibility and electronic properties

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Kozhemyakina N, Eigler S, Inayat A, Schwieger W, Hirsch A, Dinnebier RE
Zeitschrift: Fullerenes Nanotubes and Carbon Nanostructures
Verlag: Taylor & Francis: STM, Behavioural Science and Public Health Titles / Taylor & Francis
Jahr der Veröffentlichung: 2013
Band: 21
Heftnummer: 9
Seitenbereich: 804-823
ISSN: 1536-383X


Abstract


Twenty-two different graphite grades of the families natural, synthetic, intercalated, expanded, amorphous, and turbostratic graphite, as well as platelets and activated carbon, were analyzed on their dispersibility in N-methylpyrrolidone, cyclohexylpyrrolidone and water-sodium cholate solution. They were characterized for their properties (grain size, density, purity, surface area, pH in water) and morphology. Thermogravimetric analysis, Raman spectroscopy studies, and electrical conductivity measurements were also used. XRPD followed by a Rietveld refinement provided information on the amounts of the rhombohedral (3R) and hexagonal (2H) phases for the crystalline part of the material and the interlayer distances. The properties of graphites favoring better dispersibility are: small grain size and bulk density, neutral pH in water. The electrical conductivity in inversely proportional to the Raman D-band intensity and is highest for the graphites with shortest interlayer spacing. The D-, G- and 2D-bands in the Raman spectra of graphites are in an exponential relation. © 2013 Copyright Taylor and Francis Group, LLC.



FAU-Autoren / FAU-Herausgeber

Eigler, Siegfried Prof. Dr.
Lehrstuhl für Organische Chemie II
Hirsch, Andreas Prof. Dr.
Lehrstuhl für Organische Chemie II
Inayat, Alexandra Dr.-Ing.
Lehrstuhl für Chemische Reaktionstechnik
Kozhemyakina, Nina Dr.
Lehrstuhl für Organische Chemie II
Schwieger, Wilhelm Prof. Dr.
Professur für Technische Chemie (Reaktionstechnik)


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Kozhemyakina, N., Eigler, S., Inayat, A., Schwieger, W., Hirsch, A., & Dinnebier, R.E. (2013). Effect of the structure and morphology of natural, synthetic and post-processed graphites on their dispersibility and electronic properties. Fullerenes Nanotubes and Carbon Nanostructures, 21(9), 804-823. https://dx.doi.org/10.1080/1536383X.2012.702162

MLA:
Kozhemyakina, Nina, et al. "Effect of the structure and morphology of natural, synthetic and post-processed graphites on their dispersibility and electronic properties." Fullerenes Nanotubes and Carbon Nanostructures 21.9 (2013): 804-823.

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Zuletzt aktualisiert 2018-10-08 um 22:57