Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
Bassi R., Villarroel M., Gil-Llambías F.J., Baeza P., García-Fierro J.L., Martínez N., Olivera P., Leiva K. and Escalona N. (2016)


Revista : Journal of the Chilean Chemical Society
Volumen : 61
Número : 4
Páginas : 3170-3176
Tipo de publicación : ISI


The conversion of quinoline over ReS2 supported on g-Al2O3, SiO2, ZrO2 and TiO2 catalysts in a batch reactor at 300◦C and 5 MPa of hydrogen pressure wasstudied. The catalysts were prepared by wet impregnation with a loading of 1.5 atoms of Re per nm2 of support. The catalysts were characterized by N2 adsorption,X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD). The Re(x)/supports catalysts displayed high activities for the conversion ofquinoline, although negligible formation of N-free compounds (hydrodenitrogenation) were observed. The intrinsic activities of ReS2 were modified by the supportdecreased in the order: Re/TiO2 > Re/ZrO2 > Re/SiO2 > Re/g-Al2O3. The highest activity displayed by the Re/TiO2 catalyst was correlated with the Re dispersionand formation of ReS2 species. Meanwhile, the lower conversion of quinoline over the Re/ZrO2, Re/SiO2 and Re/g-Al2O3 catalysts was related to the combinedeffect of the textural properties of catalysts and the formation of ReS(2-x) species on the supports