A Rh/Al system with rhodium nanocrystals was prepared by reducing rhodium trichloride supported on silica with lithium aluminum hydride at low temperature in THF. After pretreatment in Ar and in CO/H2 the system was found to be an active catalyst of vapour phase propene hydroformylation at atmospheric pressure. The nature and composition of the active surface was studied by X-ray diffraction, X-ray photoemission spectroscopy (XPS) and Fourier transform-IR spectroscopy. Regioselectivity and chemoselectivity data are correlated to the proposed nature and morphology of the active sites of the catalyst derived from spectroscopic data. The Rh/Al system is compared with the Rh/B system we described in preceding papers. © 1993.
|Data di pubblicazione:||1993|
|Titolo:||Vapour phase propene hydroformylation catalyzed by the Rh/Al system on silica|
|Rivista:||JOURNAL OF MOLECULAR CATALYSIS|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/0304-5102(93)87113-M|
|Appare nelle tipologie:||2.1 Articolo su rivista |