Co–Fe Nanoparticles Wrapped on N‑Doped Graphitic Carbons as Highly Selective CO 2 Methanation Catalysts
Pyrolysis of chitosan containing various loadings of Co and Fe renders Co–Fe alloy nanoparticles supported on N-doped graphitic carbon. Transmission electron microscopy (TEM) images show that the surface of Co–Fe NPs is partially covered by three or four graphene layers. These Co–Fe@(N)C samples catalyze the Sabatier CO 2 hydrogenation, increasing the activity and CH 4 selectivity with the reaction temperature in the range of 300–500 °C. Under optimal conditions, a CH 4 selectivity of 91% at an 87% CO 2 conversion was reached at 500 °C and a space velocity of 75 h –1 under 10 bar. The Co–Fe al... Mehr ...
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| Dokumenttyp: | Text |
| Erscheinungsdatum: | 2021 |
| Schlagwörter: | Medicine / Biotechnology / Evolutionary Biology / Ecology / Cancer / Computational Biology / Environmental Sciences not elsewhere classified / Chemical Sciences not elsewhere classified / TEM / 10 bar / NP / Sabatier CO 2 hydrogenation / images show / CH 4 selectivity / Selective CO 2 Methanation Catalyst. / reaction temperature / transmission electron microscopy / Co / TiO 2 / space velocity / graphene layers / N-doped graphitic carbon |
| Sprache: | unknown |
| Permalink: | https://search.fid-benelux.de/Record/base-27257413 |
| Datenquelle: | BASE; Originalkatalog |
| Powered By: | BASE |
| Link(s) : | https://doi.org/10.1021/acsami.1c05542.s001 |
Pyrolysis of chitosan containing various loadings of Co and Fe renders Co–Fe alloy nanoparticles supported on N-doped graphitic carbon. Transmission electron microscopy (TEM) images show that the surface of Co–Fe NPs is partially covered by three or four graphene layers. These Co–Fe@(N)C samples catalyze the Sabatier CO 2 hydrogenation, increasing the activity and CH 4 selectivity with the reaction temperature in the range of 300–500 °C. Under optimal conditions, a CH 4 selectivity of 91% at an 87% CO 2 conversion was reached at 500 °C and a space velocity of 75 h –1 under 10 bar. The Co–Fe alloy nanoparticles supported on N-doped graphitic carbon are remarkably stable and behave differently as an analogous Co–Fe catalyst supported on TiO 2 .