Spin-Crossover in an Exfoliated 2D Coordination Polymer and Its Implementation in Thermochromic Films
| Autor: | Pablo Ordejón, Javier Saiz-Poseu, Gábor Molnár, Nayarassery N. Adarsh, Roberto Robles, Daniel Ruiz-Molina, Salvio Suárez-García, Marinela M. Dîrtu, Yann Garcia, Azzedine Bousseksou |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), European Commission, Generalitat de Catalunya, Ministerio de Economía, Industria y Competitividad (España), Fonds de la Recherche Scientifique (Fédération Wallonie-Bruxelles), Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Barcelona Institute of Science and Technology (BIST), Laboratoire de chimie de coordination (LCC), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IMCN/MOST Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Coordination polymer Metal ions in aqueous solution 010402 general chemistry 01 natural sciences Colloid chemistry.chemical_compound Sonication Spin crossover [CHIM.COOR]Chemical Sciences/Coordination chemistry General Materials Science Iron complex chemistry.chemical_classification Thermochromism 010405 organic chemistry Bilayer Polymer Exfoliation joint 0104 chemical sciences 2D coordination polymer Liquid-phase exfoliation chemistry Chemical engineering Delamination |
| Zdroj: | Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Digital.CSIC. Repositorio Institucional del CSIC instname ACS Applied Nano Materials ACS Applied Nano Materials, American Chemical Society, 2018, 1 (6), pp.2662-2668. ⟨10.1021/acsanm.8b00341⟩ |
| ISSN: | 2015-7061 2574-0970 |
| Popis: | Development of novel 2D materials with singular and thrilling properties has aroused large interest due to the novel unexpected applications that can be derived from there. In this sense, coordination polymers (CPs) have appeared as matching candidates thanks to their rational chemical design and the added-value properties given by the presence of metal ions. This is the case of switchable spin-crossover systems that have been proposed as excellent candidates for data storage or sensing, among others. Here we report the delamination of crystals of the 2D spin-crossover (SCO) {[Fe(L1)2](ClO4)2}∝ (1) CP by liquid-phase exfoliation (LPE) in water. The application of this top-down technique results in the formation of flakes with controlled thicknesses, down to 1–2 nm thick (mostly mono- and bilayer), that retain the chemical composition and SCO interconversion of the bulk material. Moreover, these flakes can be handled as stable colloidal dispersions for many days. This allows for a controlled transfer to solid substrates and the formation of thermochromic polymeric films as a proof-of-concept of device. These first results will definitely open new venues and opportunities for the investigation and future integration of these original switchable 2D materials in devices. This work was supported by projects MAT2015-70615-R, CTQ2015-65439-R, and FIS2015-64886-C5-3-P from the Spanish Government funds and by European Regional Development Fund (ERDF). Funded by the CERCA Program/Generalitat de Catalunya. ICN2 is supported by the Severo Ochoa program from Spanish Ministry of Economy, Industry and Competitiveness (MINECO, Grant SEV-2013-0295). Funded by the project 2014-SGR-301 (Generalitat de Catalunya). This work was supported by the Fonds National de la Recherche Scientifique-FNRS (PDR T.0102.15) and COST actions CM1305 and CA15128. M. M. D is a chargé de recherches from the F.R.S.-FNRS. S.S.-G. acknowledges the support from MINECO BES-2015-071492 grant. R.R. and P.O. acknowledge support from EU H2020-EINFRA-5-2015 MaX Center of Excellence (Grant 676598). |
| Databáze: | OpenAIRE |
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