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Gandara Loe J, Pinzón Peña A, Martin Espejo JL, Bobadilla LF, Ramírez Reina T, Pastor-Pérez L. MIL-100(Fe)-derived catalysts for CO 2 conversion via low- and high-temperature reverse water-gas shift reaction. Heliyon 2023; 9:e16070. [PMID: 37251869 PMCID: PMC10208944 DOI: 10.1016/j.heliyon.2023.e16070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/07/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Fe-derived catalysts were synthesized by the pyrolysis of MIL-100 (Fe) metal-organic framework (MOF) and evaluated in the reverse water-gas shift (RWGS) reaction. The addition of Rh as a dopant by in-situ incorporation during the synthesis and wet impregnation was also considered. Our characterization data showed that the main active phase was a mixture of α-Fe, Fe3C, and Fe3O4 in all the catalysts evaluated. Additionally, small Rh loading leads to a decrease in the particle size in the active phase. Despite all three catalysts showing commendable CO selectivity levels, the C@Fe* catalyst showed the most promising performance at a temperature below 500 °C, attributed to the in-situ incorporation of Rh during the synthesis. Overall, this work showcases a strategy for designing novel Fe MOF-derived catalysts for RWGS reaction, opening new research opportunities for CO2 utilization schemes.
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Affiliation(s)
- Jesús Gandara Loe
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Alejandro Pinzón Peña
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Juan Luis Martin Espejo
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Luis F. Bobadilla
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Tomás Ramírez Reina
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
- Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 7XH, UK
| | - Laura Pastor-Pérez
- Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC – Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
- Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 7XH, UK
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