INCAPE 05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Controlled preparation and characterization of Pt-Rh/Al2O3 bimetallic catalysts for reactions in reducing conditions
Autor/es:
N. HÉRAULT; C. ESPECEL; L. OLIVET; L. PIRAULT-ROY; F. EPRON; M.A. VICERICH; C.L. PIECK
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 517 p. 81 - 90
ISSN:
0926-860X
Resumen:
Pt-Rh bimetallic catalysts on alumina support were prepared according to three different techniques,one leading to random deposition of the two metals at the support?s surface, the two others, namely theorganometallic grafting and the colloidal route, favoring the formation of bimetallic particles with strongPt-Rh interactions. Catalysts were characterized by ICP, H2chemisorption, TPR, FTIR of chemisorbedCO and NO-CO. Then they were evaluated in cyclohexane dehydrogenation and methylcyclopentanehydrogenolysis reactions. Strong interaction between Pt and Rh was demonstrated for catalysts preparedby controlled preparation method, which leads to a strong synergetic effect for methylcyclopentane ring-opening, in terms of activity and selectivity, whereas these interactions do not play a role in cyclohexanedehydrogenation.
