Publicación:
Hierarchically organized metal supported carbon catalysts for C-C bond forming reactions

Fecha
2022-10-12
Editor/a
Director/a
Tutor/a
Coordinador/a
Prologuista
Revisor/a
Ilustrador/a
Derechos de acceso
info:eu-repo/semantics/openAccess
Título de la revista
ISSN de la revista
Título del volumen
Editor
Elsevier
Proyectos de investigación
Unidades organizativas
Número de la revista
Resumen
The preparation of heterogeneous catalysts is decisive to the development of catalytic processes that are environmentally acceptable. Therefore, the methodology used in the preparation of such catalysts is a key factor in the development of high catalytic activity and with concern to environmental value. Herein, we report the design of catalysts by dispersing nanoparticles of cobalt oxide (Co 3O4 ) on micrometric supports of zinc oxide (ZnO) and activated carbon (AC) using a fast and green methodology free of waste and solvents and with a low-energy consumption. In particular, the partial reaction that takes place, at room temperature, between both metal oxides and between these oxides and AC, due to proximity and diffusion effects of the corresponding materials, results in the formation of different interfaces (ZnCo, ZnAC, CoAC Co-Co). Specifically, such interfaces are new reactive surfaces that lead to very interesting and innovative properties. Thus, depending on its application, it is possible to control and modify the catalytic properties (activity / conversion / selectivity) of a solid by tuning surface and interface. This fact is proved in the model reaction of Knoevenagel condensation between aldehydes and malonic esters. Therefore, our results prove that controlling the interfaces is a feasible way to achieve in the Knoevenagel condensation, which is a reaction widely used in the formation of C–C bonds for the organic synthesis of important intermediates and final products.
Descripción
Categorías UNESCO
Palabras clave
heterogeneous catalysis, cobalt oxide nanoparticles, zinc oxide microparticles, activated carbon, dry-nano/micro-dispersion, knoevenagel condensation
Citación
Seila Martín-García, Fernando Rubio-Marcos, Vanesa Calvino-Casilda, Hierarchically organized metal supported carbon catalysts for C-C bond forming reactions, Journal of Catalysis, Volume 415, 2022, Pages 112-122, ISSN 0021-9517, https://doi.org/10.1016/j.jcat.2022.09.034
Centro
Facultades y escuelas::E.T.S. de Ingenieros Industriales
Departamento
Ingeniería Eléctrica, Electrónica, Control, Telemática y Química Aplicada a la Ingeniería
Grupo de investigación
Grupo de innovación
Programa de doctorado
Cátedra