Synthesis of tailored alumina supported Cu-based solids obtained from nanocomposites
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Materials Chemistry and Physics
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A tailored nanostructured CuO–ZnO/Al2O3 catalyst was obtained from nanocomposites via sonochemical route through core/shell assisted by reverse micelle synthesis. The as-synthesized nanocomposites consisted of Cu, Zn and Al domains coated by a lauric acid shell structure with controlled physicochemical properties. Combining these features, a porous CuO–ZnO/Al2O3 supported catalyst was obtained from CuZnAl@C nanocomposite, in which Cu and Zn oxide nanoparticles interacted quite strongly with alumina. In this study, a nanostructured CuO–ZnO/Al2O3 was applied to oxidize ethylbenzene in the presence of H2O2. Catalytic results further demonstrated that the nanostructured solid had ethylbenzene conversion superior to 20% and good selectivities to acetophenone, benzaldehyde and benzoic acid compared to a benchmark CuZnAl catalyst obtained by the sol-gel method.
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CARMO, JOSE V.C. do; BEZERRA, RITA de C.F.; TEHAUACANERO-CUAPA, SAMUEL; RODRIGUEZ-AGUADO, E.; LANG, ROSSANO; CAMPOS, ADRIANA F.; DUARTE, GIAN; SARAIVA, GILBERTO D.; OTUBO, LARISSA; OLIVEIRA, ALCINEIA C.; RODRIGUEZ-CASTELLON, E. Synthesis of tailored alumina supported Cu-based solids obtained from nanocomposites: catalytic application for valuable aldehyde and ketones production. Materials Chemistry and Physics, v. 292, p. 1-18, 2022. DOI: 10.1016/j.matchemphys.2022.126800. Disponível em: http://repositorio.ipen.br/handle/123456789/33443. Acesso em: 20 Mar 2026.
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