A possible mechanism of sulphur-induced graphitization

Studies of the structural changes of sulphur-containing cokes heat treated in the region 1420 to 1945°C reveal sulphur-enhanced graphitization. The mechanism is assumed to be a decomposition process of interstitials between carbon layers. The (002) composite X-ray diffraction reflection profiles obs...

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Veröffentlicht in:	Carbon (New York) 1988, Vol.26 (2), p.163-168
Hauptverfasser:	BRANDTZAEG, S. R, OYE, H. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences coke Crude oil, natural gas and petroleum products Energy Exact sciences and technology Fuels Graphitization Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts sulphur
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Studies of the structural changes of sulphur-containing cokes heat treated in the region 1420 to 1945°C reveal sulphur-enhanced graphitization. The mechanism is assumed to be a decomposition process of interstitials between carbon layers. The (002) composite X-ray diffraction reflection profiles observed are ascribed to the enhancement of the mechanism by reaction between the interstitials and sulphur. The well-ordered structure formed may be the rhombohedral form of the lattice that converts to the more stable hexagonal form at higher temperatures.
ISSN:	0008-6223 1873-3891
DOI:	10.1016/0008-6223(88)90032-2