Gold nanoparticle-decorated graphene oxide: Synthesis and application in oxidation reactions under benign conditions
| Autor: | Klára Čépe, Anuj K. Rathi, Radek Zboril, Libor Kvítek, Manoj B. Gawande, Radka Pocklanova, Rajender S. Varma, Martin Petr, Václav Ranc, Kasibhatta Kumara Ramanatha Datta |
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| Rok vydání: | 2016 |
| Předmět: |
Graphene
Process Chemistry and Technology Inorganic chemistry Oxide Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Heterogeneous catalysis 01 natural sciences Redox Catalysis 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Colloidal gold law Physical and Theoretical Chemistry 0210 nano-technology Hybrid material Nuclear chemistry |
| Zdroj: | Journal of Molecular Catalysis A: Chemical. 424:121-127 |
| ISSN: | 1381-1169 |
| DOI: | 10.1016/j.molcata.2016.07.047 |
| Popis: | Gold nanoparticles (∼13 nm, 4 wt% Au) dispersed on reduced graphene oxide (Au/rGO) surface were prepared via the reduction of gold (III) chloride using sodium citrate on reduced graphene oxide support. The chemical, morphological, and size analyses of Au/rGO by XRD, XPS, TEM, HR-TEM/EDS, AAS, and Raman spectroscopy revealed that the hybrid material comprised of a well-defined rGO support decorated with gold nanoparticles. The ensuing catalyst was evaluated for the oxidation of ethyl benzenes (yields up to 95%) and oxidative esterification of aldehydes (73–97%) using oxygen as an environmentally friendly oxidant in good to excellent yields; reusable and recyclable catalyst displayed high activity without the use of toxic organic solvents. |
| Databáze: | OpenAIRE |
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