Urea-assisted cooperative assembly of phosphorus dendrimer–zinc oxide hybrid nanostructures
| Autor: | Mosto Bousmina, Samir El Hankari, Abdelkrim El Kadib, Yannick Coppel, Nadia Katir, Jean-Pierre Majoral, Vincent Collière |
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| Přispěvatelé: | Université Euro Méditerranéenne de Fès (UEMF), 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) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Chemistry
Nucleation Oxide chemistry.chemical_element 02 engineering and technology General Chemistry Zinc 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound Chemical engineering Dendrimer Materials Chemistry Lamellar structure [CHIM.COOR]Chemical Sciences/Coordination chemistry Leaching (metallurgy) 0210 nano-technology Mesoporous material Hybrid material |
| Zdroj: | New Journal of Chemistry New Journal of Chemistry, Royal Society of Chemistry, 2019, 43 (5), pp.2141-2147. ⟨10.1039/C8NJ05705B⟩ |
| ISSN: | 1144-0546 1369-9261 |
| DOI: | 10.1039/C8NJ05705B⟩ |
| Popis: | International audience; Herein, phosphorus dendrimer-assisted sol–gel mineralisation of molecular zinc species is explored to access porous dendrimer–zinc oxide hybrid materials. Screening of various second-generation dendrimers peripherally-functionalized by phosphonate, catechol, ammonium and acetylacetonate groups showed a marked difference in terms of their morphology and hybrid composition, thereby highlighting the importance of surface-chemistry for the nucleation and growth of the zinc oxide inorganic phase. The homogeneous composition and distribution of the two dissimilar dendritic and metal oxide building-blocks is reached using phosphonate-terminated and catechol-terminated dendrimers. In contrast, significant leaching occurs in the case of ammonium-terminated and acetylacetonate-terminated dendrimers, leading rather to an enriched zinc oxide monophasic system. When urea was added as a ternary component, beyond improving mineralisation, interesting cooperative assembly was observed, particularly in the case of phosphonate-terminal dendrimers, which resulted in the formation of mesoporous phosphorus-containing lamellar zinc oxide hybrid materials. |
| Databáze: | OpenAIRE |
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