Delamination of 2D coordination polymers: The role of solvent and ultrasound

Two novel cadmium-based 2D coordination polymers have been synthesized and characterized. Experimental results evidence that the best delamination processes occurs when weak interactions dominate the cohesion between layers and solvent molecules are occluded within the crystalline network. In this c...

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Detalles Bibliográficos
Autores: Contreras-Pereda, Noemí, Hayati, Payam, Suárez-García, Salvio, Esrafili, P., Retailleau, Pascal, Benmansour, S., Novio, Fernando, Morsali, Ali, Ruiz Molina, Daniel
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/200296
Acceso en línea:http://hdl.handle.net/10261/200296
Access Level:acceso abierto
Palabra clave:Coordination polymers
Nanomaterials
Delamination process
Ultrasound-assisted process
Descripción
Sumario:Two novel cadmium-based 2D coordination polymers have been synthesized and characterized. Experimental results evidence that the best delamination processes occurs when weak interactions dominate the cohesion between layers and solvent molecules are occluded within the crystalline network. In this case, the delamination of the crystals occurs spontaneously in water. On top of that, and thanks to the high stability of the resulting (flake) colloidal dispersions, we have completed a detailed study of the sonication assisted delamination impact by: I) comparison of two different sonication approaches (bath vs. tip sonication) and II) optimization of final flake morphology and yield by controlling solvent and sonication time. Our results definitely pave the way for the fabrication and implementation of 2D coordination polymers using ultrasound.