Structural characterization of graphene layers in various Indian coals by X-Ray Diffraction technique

Title

Structural characterization of graphene layers in various Indian coals by X-Ray Diffraction technique

Creator

Manoj B.; Kunjomana A.G.

Description

The results of the structural investigation of three Indian coals showed that, the structural parameters like fa & Lc increased where as interlayer spacing d002 decreased with increase in carbon content, aromaticity and coal rank. These structural parameters change just opposite with increase in volatile matter content. Considering the 'turbostratic' structure for coals, the minimum separation between aromatic lamellae was found to vary between 3.34 to 3.61 A for these coals. As the aromaticity increased, the interlayer spacing decreased an indication of more graphitization of the sample. Volatile matter and carbon content had a strong influence on the aromaticity, interlayer spacing and stacking height on the sample. The average number of carbon atoms per aromatic lamellae and number of layers in the lamellae was found to be 16-21 and 7-8 for all the samples. Published under licence by IOP Publishing Ltd.

Source

IOP Conference Series: Materials Science and Engineering, Vol-73, No. 1

Date

2015-01-01

Publisher

Institute of Physics Publishing

Subject

Aromaticity; Coal; Graphene layer; Turbostratic structure

Coverage

Manoj B., Department of Physics, Christ University, Bangalore-29, Karnataka, 5600029, India; Kunjomana A.G., Department of Physics, Christ University, Bangalore-29, Karnataka, 5600029, India

Rights

All Open Access; Gold Open Access

Relation

ISSN: 17578981

Format

Online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1088/1757-899X/73/1/012096

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923239860&doi=10.1088%2f1757-899X%2f73%2f1%2f012096&partnerID=40&md5=6fa91a943a0a778cdff2bd7807be5e7d