RT Journal Article
T1 Nanoscale insights into the structure of solution-processed graphene by x-ray scattering
A1 Yan, Zhengyu
A1 García Guimarey, María Jesús
A1 Parvez, Khaled
A1 Dun, Chaochao
A1 Read, Oliver
A1 Forrest, Thomas
A1 Urban, Jeffrey J.
A1 Abdelkader, Amor M.
A1 Casiraghi, Cinzia
A1 Mirihanage, Wajira
K1 Atomic structure
K1 X-ray pair distribution function
K1 Solution-processed graphene
AB Chemical exfoliation is an attractive approach for the synthesis of graphene due to its low cost and simplicity. However, challenges still remain in the characterization of solution-processed graphene, in particular with atomic resolution. Through this work we demonstrate the x-ray pair distribution function as a novel approach to study solution-processed graphene or other 2D materials with atomic resolution, directly in solution, produced by liquid-phase and electrochemical exfoliations.The results show the disappearance of long-range atomic correlations, in both cases, confirming the production of single and few-layer graphene. In addition, a considerable ring distortion has been observed as compared to graphite, irrespective of the solvent used: the normal surface angle to the sheet of the powder sample should be less than 6◦, compatible with ripples formation observed in suspended graphene. We attribute this effect to the interaction of solvent molecules with the graphene nanosheets.
PB IOP Publishing
YR 2022
FD 2022-11-03
LK http://hdl.handle.net/10347/32105
UL http://hdl.handle.net/10347/32105
LA eng
NO Zhengyu Yan et al (2023). Nanoscale insights into the structure of solution-processed graphene by x-ray scattering, 2D Mater. 10 015006
NO We acknowledged Diamond Light Source for granting beamtime at I15-1 (CY24816). W M acknowledges the funding from EPSRC (UK) GrantEP/P02680X/1. The work of M J G G is supported by the Xunta de Galicia (Spain) Postdoctoral Fellowship with reference ED481B-2019-015. C C and K Packnowledge the Graphene Flagship Core 3 (ContractNo. 881603) and the ERC Project PEP2D (ContractNo. 770047). O R acknowledges financial supportfrom the Lloyd’s Register Foundation. C D and J Uacknowledge the Office of Science, Office of BasicEnergy Sciences, of the U.S. Department of Energy(Contract No. DE-AC02-05CH11231).
DS Minerva
RD 23 abr 2026