000153705 001__ 153705
000153705 005__ 20251017144652.0
000153705 0247_ $$2doi$$a10.1016/j.biombioe.2025.107894
000153705 0248_ $$2sideral$$a143791
000153705 037__ $$aART-2025-143791
000153705 041__ $$aeng
000153705 100__ $$aAzancot, L.$$uUniversidad de Zaragoza
000153705 245__ $$aFe-based catalysts on cellulose-derived carbon towards low-temperature RWGS
000153705 260__ $$c2025
000153705 5060_ $$aAccess copy available to the general public$$fUnrestricted
000153705 5203_ $$aThe RWGS reaction is a key pathway for converting CO2 into CO, a crucial intermediate to produce synthetic fuels and chemicals. Optimizing RWGS catalysts to enhance CO selectivity at lower temperatures facilitates integration with downstream processes such as Fischer-Tropsch synthesis. This study investigates the promotional effects of Mo, Cr, Mn, and Ce on Fe/CDC catalysts for RWGS. The catalysts were synthesized using cellulose as a biotemplate, yielding Fe/cellulose-derived carbon (Fe/CDC) catalysts. The catalysts were characterized by analyzing metal dispersion, metal-support interactions, and CO2 adsorption properties. The results for the different promoters indicate that Fe-Cr forms alloys, Fe-O-Mo species are generated, while Fe-Mn and Fe-Ce promote strong Fe-Me interactions through surface migration of the promoter. The Fe/CDC catalyst exhibited the highest CO2 conversion but the lowest CO selectivity. In contrast, Fe-Ce/CDC and Fe-Mn/CDC, which exhibit higher basicity, showed lower CO2 conversion but higher CO selectivity. This behavior is likely due to strong CO2 adsorption, which inhibits the reaction, as well as lower surface exposure of Fe, given that Ce and Mn cover Fe active sites, further affecting catalytic performance. Conversely, Fe-Mo/CDC, which has intermediate basicity, achieved the highest CO selectivity despite a lower CO2 conversion compared to the unpromoted catalyst. This suggests that Mo, not only influences adsorption properties, but also induces electronic effects through Fe-O-Mo species, promoting CO formation. These findings highlight Fe-Mo/CDC as a promising catalyst for low-temperature RWGS. Further studies are needed to elucidate the specific role of Mo in Fe-based catalysts and to optimize its catalytic performance.
000153705 536__ $$9info:eu-repo/grantAgreement/ES/MICIU/JDC2022-048904-I$$9info:eu-repo/grantAgreement/ES/MICIU/PID2020-113809RB-C31$$9info:eu-repo/grantAgreement/ES/MICIU/PID2023-147861OB-C21
000153705 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000153705 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000153705 700__ $$aTarifa, P.$$uUniversidad de Zaragoza
000153705 700__ $$aCazaña, F.
000153705 700__ $$0(orcid)0000-0002-7836-5777$$aMonzón, A.$$uUniversidad de Zaragoza
000153705 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000153705 773__ $$g199 (2025), 107894 [10 pp.]$$pBiomass bioenergy$$tBIOMASS & BIOENERGY$$x0961-9534
000153705 8564_ $$s2441818$$uhttps://zaguan.unizar.es/record/153705/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-04-17
000153705 8564_ $$s1985208$$uhttps://zaguan.unizar.es/record/153705/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-04-17
000153705 909CO $$ooai:zaguan.unizar.es:153705$$particulos$$pdriver
000153705 951__ $$a2025-10-17-14:36:50
000153705 980__ $$aARTICLE