Chemoselective nitroarene hydrogenation over Ni-Pd alloy supported on TiO2 prepared from ilmenite-type PdxNi1−xTiO3

Daniela González-Vera, Tatiana M. Bustamante, J. N.Díaz de León, Robinson Dinamarca, Ruddy Morales, Paula A. Osorio-Vargas, Cecilia C. Torres, Cristian H. Campos

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

Herein, we prepared TiO2 (rutile)-supported monometallic Ni and bimetallic Pd-Ni catalysts by thermal reduction of PdxNi1− xTiO3 (x = 0 and 0.045) and evaluated their performance for the chemoselective hydrogenation of nitrobenzene under optimized conditions. In contrast to Ni/TiO2, Pd-Ni/TiO2 featured a negligible loss of both conversion and aniline yield over five consecutive catalytic cycles, and instrumental analysis and catalytic activity evaluation revealed that this enhanced stability is due to Pd-Ni-alloy formation. Furthermore, Pd-Ni/TiO2 was used to prepare aromatic-amines used as building blocks for the production of important drugs precursors, achieving conversions of >98 % and a chemoselectivity of 99 % in the absence of undesired side-reactions.

Idioma originalInglés
Número de artículo101091
PublicaciónMaterials Today Communications
Volumen24
DOI
EstadoPublicada - sep 2020

    Huella digital

Áreas temáticas de ASJC Scopus

  • Ciencia de los materiales (todo)
  • Mecánica de materiales
  • Química de los materiales

Citar esto

González-Vera, D., Bustamante, T. M., de León, J. N. D., Dinamarca, R., Morales, R., Osorio-Vargas, P. A., Torres, C. C., & Campos, C. H. (2020). Chemoselective nitroarene hydrogenation over Ni-Pd alloy supported on TiO2 prepared from ilmenite-type PdxNi1−xTiO3. Materials Today Communications, 24, [101091]. https://doi.org/10.1016/j.mtcomm.2020.101091