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EnglishA 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/H-2 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.
VAPOR-PHASE PROPENE HYDROFORMYLATION CATALYZED BY THE RH/AL SYSTEM ON SILICA / LENARDA M; GANZERLA R; ENZO S; STORARO L; ZANONI R; RI Zanoni Robertino/A-1742-2008. - In: JOURNAL OF MOLECULAR CATALYSIS. - ISSN 0304-5102. - 80:1(1993), pp. 105-116. [10.1016/0304-5102(93)87113-M]
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| Titolo: | VAPOR-PHASE PROPENE HYDROFORMYLATION CATALYZED BY THE RH/AL SYSTEM ON SILICA | |
| Autori: | ||
| Data di pubblicazione: | 1993 | |
| Rivista: | ||
| Citazione: | VAPOR-PHASE PROPENE HYDROFORMYLATION CATALYZED BY THE RH/AL SYSTEM ON SILICA / LENARDA M; GANZERLA R; ENZO S; STORARO L; ZANONI R; RI Zanoni Robertino/A-1742-2008. - In: JOURNAL OF MOLECULAR CATALYSIS. - ISSN 0304-5102. - 80:1(1993), pp. 105-116. [10.1016/0304-5102(93)87113-M] | |
| Abstract: | 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/H-2 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. | |
| Handle: | http://hdl.handle.net/11388/48093 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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