Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction
Copper-based catalysts are highly promising for carbon dioxide (CO2) reduction to carbon monoxide (CO) via the reverse water-gas shift (RWGS) reaction, owing to their efficiency, copper abundance, sustainability and cost-effectiveness. However, enhancing CO2 conversion and CO selectivity requires ac...
| Authors: | ; ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2025 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:dnet:upcommonspor::b0fc78b29b55a61c031e44d4fcbc282c |
| Online Access: | https://hdl.handle.net/2117/460318 https://dx.doi.org/10.1016/j.cej.2025.165039 |
| Access Level: | Open access |
| Keyword: | RWGS Mechanochemistry Copper catalysts DRIFTS Ceria |
| _version_ | 1878732736533889024 |
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| author | Lu, Xuan |
| author2 | Yu, Jing Li, Junshan Serrano Carreño, M. Isabel|||0000-0002-4996-9280 Arbiol Cobos, Jordi Cabot, Andreu Llorca Piqué, Jordi|||0000-0002-7447-9582 |
| author2_role | author author author author author author |
| author_browse | Arbiol Cobos, Jordi Cabot, Andreu Li, Junshan Llorca Piqué, Jordi|||0000-0002-7447-9582 Lu, Xuan Serrano Carreño, M. Isabel|||0000-0002-4996-9280 Yu, Jing |
| author_facet | Lu, Xuan Yu, Jing Li, Junshan Serrano Carreño, M. Isabel|||0000-0002-4996-9280 Arbiol Cobos, Jordi Cabot, Andreu Llorca Piqué, Jordi|||0000-0002-7447-9582 |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | Copper-based catalysts are highly promising for carbon dioxide (CO2) reduction to carbon monoxide (CO) via the reverse water-gas shift (RWGS) reaction, owing to their efficiency, copper abundance, sustainability and cost-effectiveness. However, enhancing CO2 conversion and CO selectivity requires achieving high copper dispersion through a scalable and economical synthesis method. In this study, Cu was combined with CeO2 rods via a mechanochemical ball-milling approach to optimize performance in the RWGS reaction. Comprehensive characterization and kinetic analysis revealed how metal content influences catalyst architecture and activity. Additionally, in situ diffuse reflectance infrared Fourier transform spectroscopy was used to investigate the nature of copper species at different dispersion levels and elucidate the reaction pathway. Notably, the Cu/CeO2 catalyst with a high Cu loading (~5 wt%) and well-dispersed active sites achieved an activity (RCu(CO2)) of 4.8¿10-5 molCO2 mCu-2 s-1 with over 99% CO selectivity at 450°C. These findings provide a robust strategy for developing high-performance Cu-based catalysts for the RWGS reaction. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_48c0e59633e3eeb0648797148564956f |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:dnet:upcommonspor::b0fc78b29b55a61c031e44d4fcbc282c |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction Lu, Xuan Yu, Jing Li, Junshan Serrano Carreño, M. Isabel|||0000-0002-4996-9280 Arbiol Cobos, Jordi Cabot, Andreu Llorca Piqué, Jordi|||0000-0002-7447-9582 RWGS Mechanochemistry Copper catalysts DRIFTS Ceria Copper-based catalysts are highly promising for carbon dioxide (CO2) reduction to carbon monoxide (CO) via the reverse water-gas shift (RWGS) reaction, owing to their efficiency, copper abundance, sustainability and cost-effectiveness. However, enhancing CO2 conversion and CO selectivity requires achieving high copper dispersion through a scalable and economical synthesis method. In this study, Cu was combined with CeO2 rods via a mechanochemical ball-milling approach to optimize performance in the RWGS reaction. Comprehensive characterization and kinetic analysis revealed how metal content influences catalyst architecture and activity. Additionally, in situ diffuse reflectance infrared Fourier transform spectroscopy was used to investigate the nature of copper species at different dispersion levels and elucidate the reaction pathway. Notably, the Cu/CeO2 catalyst with a high Cu loading (~5 wt%) and well-dispersed active sites achieved an activity (RCu(CO2)) of 4.8¿10-5 molCO2 mCu-2 s-1 with over 99% CO selectivity at 450°C. These findings provide a robust strategy for developing high-performance Cu-based catalysts for the RWGS reaction. 13 - Acció per al Clima 7 - Energia Assequible i No Contaminant Elsevier https://hdl.handle.net/2117/460318 https://dx.doi.org/10.1016/j.cej.2025.165039 |
| spellingShingle | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction Lu, Xuan RWGS Mechanochemistry Copper catalysts DRIFTS Ceria |
| title | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| title_full | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| title_fullStr | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| title_full_unstemmed | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| title_short | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| title_sort | Mechanochemical synthesis of highly dispersed Cu on CeO2 for the reverse water-gas shift reaction |
| topic | RWGS Mechanochemistry Copper catalysts DRIFTS Ceria |
| topic_facet | RWGS Mechanochemistry Copper catalysts DRIFTS Ceria |
| url | https://hdl.handle.net/2117/460318 https://dx.doi.org/10.1016/j.cej.2025.165039 |