期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 292, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2022.126800
关键词
Porous alumina; Nanocomposites; CuZnAl@C; Cu -based nanomaterials; Oxidation
资金
- CNPq [406629/ 2018-8]
- Funcap [PS1-0186-00346.01.00/21]
- Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades [P20_00375]
- Ministerio de Ciencia e Innovacion (Spain) [PID2021- 126235OB-C32]
- FEDER funds
- Petrobras
A tailored nanostructured CuO-ZnO/Al2O3 catalyst was successfully synthesized via sonochemical route through core/shell assisted by reverse micelle synthesis. The catalyst exhibited high conversion and good selectivity in the oxidation of ethylbenzene.
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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