Microwave-driven exfoliation of bulk 2H-MoS[sub]2 after acetonitrile prewetting produces large-area ultrathin flakes with exceptionally high yield

Quirós-Ovies, R. (Universidad de Zaragoza) ; Laborda, M. ; Martín Sabanés, N. ; Martín-Pérez, L. ; Moreno Da-Silva, S. ; Burzurí, E. ; Sebastian, V. (Universidad de Zaragoza) ; Pérez, E. M. ; Santamaría, J. (Universidad de Zaragoza)

Resumen: 2D materials display exciting properties in numerous fields, but the development of applications is hindered by the low yields, high processing times, and impaired quality of current exfoliation methods. In this work we have used the excellent MW absorption properties of MoS2 to induce a fast heating that produces the near-instantaneous evaporation of an adsorbed, low boiling point solvent. The sudden evaporation creates an internal pressure that separates the MoS2 layers with high efficiency, and these are kept separated by the action of the dispersion solvent. Our fast method (90 s) gives high yields (47% at 0.2 mg/mL, 35% at 1 mg/mL) of highly exfoliated material (90% under 4 layers), large area (up to several μm2), and excellent quality (no significant MoO3 detected).

Idioma: Inglés

DOI: 10.1021/acsnano.3c00280

Año: 2023

Publicado en: ACS NANO 17, 6 (2023), 5984-5993
ISSN: 1936-0851

Factor impacto JCR: 15.8 (2023)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 14 / 178 = 0.079 (2023) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 11 / 141 = 0.078 (2023) - Q1 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 15 / 231 = 0.065 (2023) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 27 / 439 = 0.062 (2023) - Q1 - T1

Factor impacto CITESCORE: 26.0 - Engineering (all) (Q1) - Materials Science (all) (Q1) - Physics and Astronomy (all) (Q1)

Factor impacto SCIMAGO: 4.593 - Engineering (miscellaneous) (Q1) - Physics and Astronomy (miscellaneous) (Q1) - Nanoscience and Nanotechnology (Q1) - Materials Science (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/EUR/ERC/ERC-AdG-742684
Financiación: info:eu-repo/grantAgreement/EUR/ERC/ERC-PoC-842606
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2017-86060-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2020-116661RB-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2021-127847OB-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2016-0686

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)