Nanopartikuläre Katalysatoren und neue katalytische Anwendungen auf Basis der Metalle Rhodium und Cobalt
type: CreativeWork
description: Within this work new poly(ethyleneglycol)-stabilised nanoparticles should be synthesised and tested in various catalytic reactions, as there are hydrogenation and C-C bond forming reactions (Pauson Khand reaction PKR). Additionally an effective protocol for the separation of the catalyst from the reaction solution was set up by immobilisation of the PEG-stabilised nanoparticles on an inorganic support (SPPC, Supported Peg Phase Catalyst). Also an effective separation of the catalyst was achieved by taking advantage of the high polarity of the PEG-matrix, enabling a phase switch by decreasing the polarity of the reaction solution. The immobilised nanoparticles (SPP-catalysts) were also investigated in a continuous flow process with scCO2 as the mobile phase. Furthermore Raney Cobalt was tested within this work as an active and selective catalyst for the PKR.
abstract: Within this work new poly(ethyleneglycol)-stabilised nanoparticles should be synthesised and tested in various catalytic reactions, as there are hydrogenation and C-C bond forming reactions (Pauson Khand reaction PKR). Additionally an effective protocol for the separation of the catalyst from the reaction solution was set up by immobilisation of the PEG-stabilised nanoparticles on an inorganic support (SPPC, Supported Peg Phase Catalyst). Also an effective separation of the catalyst was achieved by taking advantage of the high polarity of the PEG-matrix, enabling a phase switch by decreasing the polarity of the reaction solution. The immobilised nanoparticles (SPP-catalysts) were also investigated in a continuous flow process with scCO2 as the mobile phase. Furthermore Raney Cobalt was tested within this work as an active and selective catalyst for the PKR.
author: Muller, Jean-Luc
language: ger
keywords: info:eu-repo/classification/ddc/540, Nanopartikel, Katalyse, Immobilisierung, Katalytische Hydrierung, Pauson-Khand-Reaktion, Grüne Chemie, Chemie, Raney-Cobalt, Überkritisches CO2, Kontinuierliche Reaktionsführung, Polymer-stabilisierte Nanopartikel, supercritical CO2, heterogenation, continuous flow, polymer stabilised nanoparticles, catalytic hydrogenations
date published: 2007
date modified: 2026-07-30T19:43:28Z
provider: RWTH Aachen University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Publikationsserver der RWTH Aachen University