Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity
The aim of this work was to study the influence of copper content and particle morphology on the performance of Cu/FeO<sub>x</sub> catalysts in the gas-phase conversion of CO<sub>2</sub> with hydrogen. All four investigated catalysts with a copper content between 0 and 5 wt%...
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MDPI AG
2022-05-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/5/516 |
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| author | Karolína Simkovičová Muhammad I. Qadir Naděžda Žilková Joanna E. Olszówka Pavel Sialini Libor Kvítek Štefan Vajda |
| author_facet | Karolína Simkovičová Muhammad I. Qadir Naděžda Žilková Joanna E. Olszówka Pavel Sialini Libor Kvítek Štefan Vajda |
| author_sort | Karolína Simkovičová |
| collection | DOAJ |
| description | The aim of this work was to study the influence of copper content and particle morphology on the performance of Cu/FeO<sub>x</sub> catalysts in the gas-phase conversion of CO<sub>2</sub> with hydrogen. All four investigated catalysts with a copper content between 0 and 5 wt% were found highly efficient, with CO<sub>2</sub> conversion reaching 36.8%, and their selectivity towards C<sub>1</sub> versus C<sub>2</sub>-C<sub>4</sub>, C<sub>2</sub>-C<sub>4</sub>=, and C<sub>5+</sub> products was dependent on catalyst composition, morphology, and temperature. The observed range of products is different from those observed for catalysts with similar composition but synthesized using other precursors and chemistries, which yield different morphologies. The findings presented in this paper indicate potential new ways of tuning the morphology and composition of iron-oxide-based particles, ultimately yielding catalyst compositions and morphologies with variable catalytic performances. |
| first_indexed | 2024-03-10T03:10:47Z |
| format | Article |
| id | doaj.art-91c05dd98111497192631e5c6538f3be |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T03:10:47Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-91c05dd98111497192631e5c6538f3be2023-11-23T10:26:01ZengMDPI AGCatalysts2073-43442022-05-0112551610.3390/catal12050516Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on SelectivityKarolína Simkovičová0Muhammad I. Qadir1Naděžda Žilková2Joanna E. Olszówka3Pavel Sialini4Libor Kvítek5Štefan Vajda6Department of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolejškova 2155/3, 18223 Prague, Czech RepublicDepartment of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolejškova 2155/3, 18223 Prague, Czech RepublicDepartment of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolejškova 2155/3, 18223 Prague, Czech RepublicDepartment of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolejškova 2155/3, 18223 Prague, Czech RepublicLaboratory of Surface Analysis, University of Chemistry and Technology, Technická 3, 16628 Prague, Czech RepublicDepartment of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 77900 Olomouc, Czech RepublicDepartment of Nanocatalysis, J. Heyrovský Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolejškova 2155/3, 18223 Prague, Czech RepublicThe aim of this work was to study the influence of copper content and particle morphology on the performance of Cu/FeO<sub>x</sub> catalysts in the gas-phase conversion of CO<sub>2</sub> with hydrogen. All four investigated catalysts with a copper content between 0 and 5 wt% were found highly efficient, with CO<sub>2</sub> conversion reaching 36.8%, and their selectivity towards C<sub>1</sub> versus C<sub>2</sub>-C<sub>4</sub>, C<sub>2</sub>-C<sub>4</sub>=, and C<sub>5+</sub> products was dependent on catalyst composition, morphology, and temperature. The observed range of products is different from those observed for catalysts with similar composition but synthesized using other precursors and chemistries, which yield different morphologies. The findings presented in this paper indicate potential new ways of tuning the morphology and composition of iron-oxide-based particles, ultimately yielding catalyst compositions and morphologies with variable catalytic performances.https://www.mdpi.com/2073-4344/12/5/516heterogeneous catalysisCO<sub>2</sub> hydrogenationCO<sub>2</sub> conversionmethanehydrocarbonsiron oxide |
| spellingShingle | Karolína Simkovičová Muhammad I. Qadir Naděžda Žilková Joanna E. Olszówka Pavel Sialini Libor Kvítek Štefan Vajda Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity Catalysts heterogeneous catalysis CO<sub>2</sub> hydrogenation CO<sub>2</sub> conversion methane hydrocarbons iron oxide |
| title | Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity |
| title_full | Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity |
| title_fullStr | Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity |
| title_full_unstemmed | Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity |
| title_short | Hydrogenation of CO<sub>2</sub> on Nanostructured Cu/FeO<sub>x</sub> Catalysts: The Effect of Morphology and Cu Load on Selectivity |
| title_sort | hydrogenation of co sub 2 sub on nanostructured cu feo sub x sub catalysts the effect of morphology and cu load on selectivity |
| topic | heterogeneous catalysis CO<sub>2</sub> hydrogenation CO<sub>2</sub> conversion methane hydrocarbons iron oxide |
| url | https://www.mdpi.com/2073-4344/12/5/516 |
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