INVESTIGADORES
GUTIERREZ Victoria Soledad
artículos
Título:
Liquid phase hydrogenation of crotonaldehyde over copper incorporated in MCM-48
Autor/es:
GUTIERREZ VICTORIA SOLEDAD; DIEZ ALEJANDRA SOLEDAD; DENNEHY MARIANA; VOLPE MARÍA ALICIA
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 437 p. 72 - 78
ISSN:
0926-860X
Resumen:
A series of Cu/MCM-48 catalysts is studied for the liquid phase hydrogenation of crotonaldehyde. Copper is incorporated in MCM-48 following a classical hydrothermal synthesis or by wet impregnation of the MCM-48 precursor (before eliminating the directing agent) with Cu(AcAc) 2 . The copper loading is in the 2–20 wt% range. Characterization results from TPR and XRD indicate that copper crystals supported on MCM-48 surface coexist with copper incorporated in the MCM-48 walls. The presence of Cu + in MCM-48 is concluded from characterization with FTIR of adsorbed CO. This species would be the responsible for the relatively high selectivity of Cu/MCM-48. These catalysts show approximately 50% of selectivity against 7% of Cu/SiO 2 (both values measured at 10% of conversion).