| Autor: |
Marcos Esteban, Raquel, Schütte, Kai, Marquardt, Dorothea, Barthel, Juri, Beckert, Fabian, Mülhaupt, Rolf, Janiak, Christoph |
| Zdroj: |
Nano-Structures & Nano-Objects; August 2015, Vol. 2 Issue: 1 p28-34, 7p |
| Abstrakt: |
Ruthenium nanoparticles (Ru-NPs) can be deposited on thermally reduced graphite oxide (TRGO) in propylene carbonate (PC). Propylene carbonate is a biodegradable and non-toxic solvent. Synthesis of Ru-NPs and deposition on TRGO were achieved by decomposition of ruthenium dodecacarbonyl, Ru3(CO)12, by microwave irradiation. Ru@graphene nanomaterials were identified and characterized by high resolution transmission electron microscopy (TEM, HR-TEM), energy-dispersive X-ray diffraction (EDX), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS) and powder X-ray diffraction (PXRD) with a small diameter and size distribution of 7±4nmRu-NPs on TRGO. These Ru@graphene nanomaterials are active catalysts for the solvent-free hydrogenation of benzene to cyclohexane under mild conditions (100 °C, 10 bar) with activities of 34,000(molcyclohexane)⋅(molRu)−1⋅h−1and over 90% conversion in at least ten consecutive runs. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full Text from ScienceDirect