Journal
CARBON
Volume 115, Issue -, Pages 539-545Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2017.01.046
Keywords
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Funding
- UK Science and Technology Facilities Council for the provision of beam time on the TOSCA spectrometer [RB1410624]
- European Commission under the 7th Framework Programme through the Research Infrastructures action of the Capacities Programme [283883]
- MINECO [MAT2013-45008-p]
- CONCERT Project-NASEMS [PCIN-2013-057]
- Generalitat Valenciana [PROMETE02009/002]
- Principado de Asturias-PCTI
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Structural flexibility in a petroleum pitch-derived carbon material has been indirectly evaluated using Xray diffraction (XRD), immersion calorimetry and inelastic neutron scattering (INS) measurements. Exposure of the carbon material to an organic solvent (e.g., n-nonane) gives rise to a large internal rearrangement, associated with a drastic re-ordering of the graphitic microdomains. These structural changes are also associated with a high flexibility of the internal porous network, as observed by inelastic neutron scattering measurements. The internal rearrangement and the structural flexibility could be responsible for the excellent performance of this kind of activated carbons in a wide variety of adsorption processes. Last but not least, the structural characteristics of these carbon materials composed of graphitic microdomains has been used to synthesize graphene egg-like flakes following a simple procedure based on exfoliation with organic solvents. (C) 2017 Elsevier Ltd. All rights reserved.
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