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Updated: Mar 22, 2026

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
Hydrogenation of Carbon Dioxide to Methane by Ruthenium Nanoparticles in Ionic Liquid
Catarina I Melo1, Anna Szczepańska1, Ewa Bogel-Łukasik2
1LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
Abstract:
The efficient transformation of carbon dioxide into fuels can be an excellent alternative to sequestration. In this work, we describe CO2 hydrogenation to methane in imidazolium-based ionic liquid media, using ruthenium nanoparticles prepared in situ as catalyst. The best yield of methane (69 %) was achieved using 0.24 mol % ruthenium catalyst (in [omim][NTf2 ], 1-octyl-3-methylimidazolium bistrifluoromethanesulfonylimide, at 40 bar of hydrogen pressure plus 40 bar of CO2 pressure, and at 150 °C.
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