Faceted‐Charge Patchy LnF3 Nanocrystals with a Selective Solvent Interaction. Issue 45 (12th October 2018)

• Record Type: Journal Article
• Authors: Martínez‐Esaín, Jordi; Puig, Teresa; Obradors, Xavier; Ros, Josep; Yáñez, Ramón; Faraudo, Jordi; Ricart, Susagna
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 45(2018)
• Page Start: 14747
• Page End: 14751
• Publication Date: 2018-10-12
• Subjects: co-precipitation -- molecular dynamics simulations -- patchy nanocrystals -- rare-earth metals -- selective ionic adsorption; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201806273
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: A fast and single‐step preparation of patchy LnF3 faceted‐charge nanocrystals are described. These hexagonal faceted nanocrystals allow the spontaneous selective adsorption of cations or anions in the different faces, producing stable and well‐defined patches of different charge. The mechanism for the formation of the patches and the properties of the obtained nanocrystals were characterized by a combination of experimental techniques and all‐atomic molecular dynamics simulations. The spontaneous dual‐charged surface as well as the luminescence effects that can be achieved by doping host–LaF3 systems make these new nanocrystals interesting both from a fundamental point of view and for a wide range of applications. Abstract : Thermodynamically stable patchy NCs were obtained using an easy, fast and reproducible method in water. These systems were studied thoroughly, from experimental techniques to all‐atomistic MD simulations. The results revealed the spontaneous and selective attachment of cations and anions in their different exposed faces as well as selective solvent interactions.