INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Synthesis of PtSn nanoparticles on carbon materials by different preparation methods for selective catalytic hydrogenation of citral
Autor/es:
VILELLA, IRENE; STASSI, JULIETA; DE MIGUEL, SERGIO; MÉNDEZ, JONATHAN; ZGOLICZ, PATRICIA
Revista:
CHEMICAL ENGINEERING COMMUNICATIONS
Editorial:
TAYLOR & FRANCIS INC
Referencias:
Año: 2019 p. 1 - 18
ISSN:
0098-6445
Resumen:
In this work, PtSn bimetallic catalysts supported on three different carbons were prepared by two methods: a) conventional impregnation followed by a reduction treatment under H2-flow (CI) and b) deposition-reduction in liquid phase (RLP). All the catalysts were tested in the selective hydrogenation of citral to the unsaturated alcohols (UA). A strong influence of the preparation method and the support was found over the selectivity to UA. For CI pre- pared catalysts, low Sn loadings give a metallic phase with highly ordered PtSn alloys, while for RLP catalysts, high Sn loadings give highly ordered phases with Sn ionic species interca- lated in the Pt metallic phase. Both ordered phases are highly effective to promote the hydrogenation of carbonyl group. For the RLP method, high Sn/Pt molar ratios in solution leads to the formation of PtSn complexes with a good interaction between metals.