Direct organometallic synthesis of carboxylate intercalated layered zinc hydroxides for fully exfoliated functional nanosheets
| Autor: | Milo S. P. Shaffer, Said A. Said, Charlotte K. Williams, Christopher S. Roberts, Ja Kyung Lee |
|---|---|
| Přispěvatelé: | Shell Global Solutions International BV |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Chemistry Multidisciplinary Intercalation (chemistry) organozinc 02 engineering and technology 01 natural sciences 09 Engineering chemistry.chemical_compound NANOPARTICLES Electrochemistry 2D nanosheets ZNO NANOPARTICLES Materials PRECURSORS chemistry.chemical_classification 02 Physical Sciences biology Chemistry Physical Physics DELAMINATION 021001 nanoscience & nanotechnology Condensed Matter Physics NANOCOMPOSITES HYDROLYSIS Exfoliation joint Electronic Optical and Magnetic Materials Chemistry Physics Condensed Matter Physical Sciences Science & Technology - Other Topics GROWTH 03 Chemical Sciences 0210 nano-technology BEHAVIOR NITRATE Organic anion Materials science Carboxylic acid Materials Science chemistry.chemical_element Materials Science Multidisciplinary Zinc FILMS 010402 general chemistry NANOSTRUCTURES ONE-STEP SYNTHESIS Physics Applied Biomaterials layered zinc hydroxides intercalation Polymer chemistry Monolayer Carboxylate Nanoscience & Nanotechnology Science & Technology exfoliation ACIDS 0104 chemical sciences SIZE chemistry Reagent biology.protein CLUSTERS |
| DOI: | 10.1002/adfm.202102631 |
| Popis: | Intercalation of organic anions into 2D materials can enable exfoliation, improve dispersion stability, increase surface area, and provide useful functional groups. In layered metal hydroxides, intercalation of bulk structures is commonly achieved by cumbersome and typically incomplete anion exchange reactions. In contrast, here, a series of carboxylate-intercalated layered zinc hydroxides (LZH-R) are synthesized directly, at room temperature, by reacting an organozinc reagent with a precise sub-stoichiometric quantity of the desired carboxylic acid and water. A range of carboxylic acids are used to make new LZH-R materials which are crystalline, soluble, and functionalized, as established by X-ray diffraction, spectroscopic, and microscopy techniques. When R is an alkyl ether carboxylate, this direct synthesis method results in the spontaneous exfoliation of the LZH-R into monolayer nanosheets with high yields (70–80%) and high solubilities in alcohols and water of up to 180 mg mL−1. By altering the carboxylate ligand, functional groups suitable for post-synthetic modification or for detection by fluorescence are also introduced. These examples demonstrate a versatile synthetic route for functional exfoliated nanosheets. |
| Databáze: | OpenAIRE |
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