Santamaría Arana, LeticiaOliveira-Garcia, L.Faria, Emerson H. deCiuffi, Katia J.Vicente, Miguel ÁngelKorili, Sophia A.Gil Bravo, Antonio2022-06-082022-06-082022Santamaria, L.; Oliveira-Garcia, L.; de-Faria, E. H.; Ciuffi, K. J.; Vicente, M. A.; Korili, S. A.; Gil, A.. (2022). M(II)-Al-Fe layered double hydroxides synthesized from aluminum saline slag wastes and catalytic performance on cyclooctene oxidation. Minerals Engineering. 180, 1-9 .0892-687510.1016/j.mineng.2022.107516https://academica-e.unavarra.es/handle/2454/43107Aluminum was extracted from saline slags via an alkaline method and employed in the synthesis of Layered Double Hydroxides (LDH) with various M2+ cations (Co, Mg, Ni and Zn), while Al and Fe were the M3+ cations, using the co-precipitation method and a M2+/M3+ 2:1 ratio. The structural characterization of the samples was performed with powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), nitrogen physisorption at 77 K, thermogravimetric analysis (TGA), temperature-programmed reduction (TPR) and X-ray photoelectron spectroscopy (XPS). Their catalytic performance was tested for the oxidation of olefins (cyclooctene) and their biomimetic potential was analyzed. Results show a great selectivity towards epoxides with no other products obtained. Reaction yields followed the descending order Co4AlFe, Zn4AlFe, Ni4AlFe, and Mg4AlFe, the sample with cobalt as M2+ converting up to 85% of cyclooctene.9 p.application/pdfeng© 2022 The Author(s). This is an open access article under the CC BY-NC-ND licenseAluminum industrial wastesHydrotalciteIodosylbenzeneSaline slags(Z)-cyclooctene oxidationinfo:eu-repo/semantics/article2022-06-08info:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia