0584850 - ÚACH 2025 RIV DE eng J - Journal Article
Tan, H. L. - Donato, K. Z. - Costa, M. C. F. - Carvalho, A. - Trushin, M. - Ng, P. R. - Yau, X. H. - Koon, G. K. W. - Tolasz, Jakub - Němečková, Zuzana - Ecorchard, Petra - Donato, R. K. - Neto, A. H. C.
Fibrillation of Pristine 2D Materials by 2D-Confined Electrolytes.
Advanced Functional Materials. Roč. 34, č. 29 (2024), č. článku 2315038. ISSN 1616-301X. E-ISSN 1616-3028
R&D Projects: GA ČR(CZ) GA22-05244S; GA MŠMT(CZ) LM2023066
Institutional support: RVO:61388980
Keywords : boron nitride * fiber * graphene * MoS2 * scrolling * self-assembly
OECD category: Inorganic and nuclear chemistry
Impact factor: 18.5, year: 2023
Method of publishing: Open access

2D materials are solid microscopic flakes with a-few-Angstrom thickness possessing some of the largest surface-to-volume ratios known. Altering their conformation state from a flat flake to a scroll or fiber offers a synergistic association of properties arising from 2D and 1D nanomaterials. However, a combination of the long-range electrostatic and short-range solvation forces produces an interlayer repulsion that has to be overcome, making scrolling 2D materials without disrupting the pristine structure a challenging task. Herein, a facile method is presented to alter the 2D materials' inter-layer interactions by confining organic salts onto their basal area, forming 2D-confined electrolytes. The confined electrolytes produce local charge inhomogeneities, which can conjugate across the interlayer gap, binding the two surfaces. This allows the 2D-confined electrolytes to behave as polyelectrolytes within a higher dimensional order (2D> 1D) and form robust nanofibers with distinct electronic properties. The method is not material-specific and the resulting fibers are tightly bound even though the crystal structure of the basal plane remains unaltered.
Permanent Link: https://hdl.handle.net/11104/0354846