Raman spectrum of asphaltene

Handle URI:
http://hdl.handle.net/10754/564626
Title:
Raman spectrum of asphaltene
Authors:
Abdallah, Wael A.; Yang, Yang
Abstract:
Asphaltenes extracted from seven different crude oils representing different geological formations from around the globe were analyzed using the Raman spectroscopic technique. Each spectrum is fitted with four main peaks using the Gaussian function. On the basis of D1 and G bands of the Raman spectrum, asphaltene indicated an ordered structure with the presence of boundary defected edges. The average aromatic sheet size of the asphaltene molecules is estimated within the range of 1.52-1.88 nm, which represents approximately seven to eight aromatic fused rings. This estimation is based on the integrated intensity of D1 and G bands, as proposed by Tunistra and Koenig. The results here are in perfect agreement with so many other used techniques and indicate the potential applicability of Raman measurements to determine the average aromatic ring size and its boundary. © 2012 American Chemical Society.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Core Labs
Publisher:
American Chemical Society (ACS)
Journal:
Energy & Fuels
Issue Date:
5-Nov-2012
DOI:
10.1021/ef301247n
Type:
Article
ISSN:
08870624
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorAbdallah, Wael A.en
dc.contributor.authorYang, Yangen
dc.date.accessioned2015-08-04T07:05:27Zen
dc.date.available2015-08-04T07:05:27Zen
dc.date.issued2012-11-05en
dc.identifier.issn08870624en
dc.identifier.doi10.1021/ef301247nen
dc.identifier.urihttp://hdl.handle.net/10754/564626en
dc.description.abstractAsphaltenes extracted from seven different crude oils representing different geological formations from around the globe were analyzed using the Raman spectroscopic technique. Each spectrum is fitted with four main peaks using the Gaussian function. On the basis of D1 and G bands of the Raman spectrum, asphaltene indicated an ordered structure with the presence of boundary defected edges. The average aromatic sheet size of the asphaltene molecules is estimated within the range of 1.52-1.88 nm, which represents approximately seven to eight aromatic fused rings. This estimation is based on the integrated intensity of D1 and G bands, as proposed by Tunistra and Koenig. The results here are in perfect agreement with so many other used techniques and indicate the potential applicability of Raman measurements to determine the average aromatic ring size and its boundary. © 2012 American Chemical Society.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleRaman spectrum of asphalteneen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentCore Labsen
dc.identifier.journalEnergy & Fuelsen
dc.contributor.institutionSchlumberger Dhahran Carbonate Research Center, P.O. Box 39011, Dharhan 31942, Saudi Arabiaen
kaust.authorYang, Yangen
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