Journal article

Publication year: 2018

Pages: 325-333

Journal: Carbon

Volume number: 139

ISSN: 0008-6223

DOI Link: https://doi.org/10.1016/j.carbon.2018.06.068

Publisher: Elsevier

Abstract: 
Carbon nanostructures with a well-developed turbostratic sp(2) structure and high porosity are synthesized at room temperature inside a planetary ball mill. The obtained carbons were analyzed in-depth by means of gas adsorption, wide-angle X-ray scattering (WAXS), Raman spectroscopy, and transmission electron microscopy (TEM). Our approach involves the solvent-free reaction between calcium carbide (CaC2) and hexachlorobenzene (C6Cl6) conducted under mechanochemical conditions. After certain mechanical activation time, the exothermic nature of the reaction (-492 kcal) provokes a combustion-like event that results in innocuous salt (CaCl2) and a carbonaceous material. Carbon with a high degree of structural order in the constituting graphene and the graphene stacks, possessing almost no internal surface, can be obtained after 5 min of milling time with a mass ratio CaC2/C6Cl6 of 0.9, while carbon exhibiting a surface area as high as 915 m(2)/g can be obtained after 2 h of milling time with a mass ratio CaC2/C6Cl6 of 5.1. WAXS results and TEM observations reveal a mixture of amorphous carbon and non-graphitic phases. Among the last one, spherical-shaped carbons and curved nanosized strips can be easily distinguished.

Harvard Citation style: Casco, M., Badaczewski, E., Grätz, S., Tolosa, A., Presser, V., Smarsly, B., et al. (2018) Mechanochemical synthesis of porous carbon at room temperature with a highly ordered sp2 microstructure, Carbon, 139, pp. 325-333. https://doi.org/10.1016/j.carbon.2018.06.068

APA Citation style: Casco, M., Badaczewski, E., Grätz, S., Tolosa, A., Presser, V., Smarsly, B., & Borchardt, L. (2018). Mechanochemical synthesis of porous carbon at room temperature with a highly ordered sp2 microstructure. Carbon. 139, 325-333. https://doi.org/10.1016/j.carbon.2018.06.068