Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde

New composites based on the [RhMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]<SUP>3−</SUP> (RhMo<SUB>6</SUB>) heteropolyanion supported on pillared (PILC), heterostructured (PCH) and functionalized(PILC-F) and (PCH-F) systems based on clays wer...

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Autores principales: Bertolini, Guillermo Ramón, Vetere, Virginia, Gallo, María Angélica, Muñoz, Mercedes, Casella, Mónica Laura, Gambaro, Luis A., Cabello, Carmen Inés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ingeniería
Ciencias Exactas
Chemical modification
Cinnamaldehyde
Clays
Composites
Liquid-phase hydrogenation
Rh(III)-heteropolymolybdates
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85930
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85930
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
Ciencias Exactas
Chemical modification
Cinnamaldehyde
Clays
Composites
Liquid-phase hydrogenation
Rh(III)-heteropolymolybdates
spellingShingle Ingeniería
Ciencias Exactas
Chemical modification
Cinnamaldehyde
Clays
Composites
Liquid-phase hydrogenation
Rh(III)-heteropolymolybdates
Bertolini, Guillermo Ramón
Vetere, Virginia
Gallo, María Angélica
Muñoz, Mercedes
Casella, Mónica Laura
Gambaro, Luis A.
Cabello, Carmen Inés
Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
topic_facet Ingeniería
Ciencias Exactas
Chemical modification
Cinnamaldehyde
Clays
Composites
Liquid-phase hydrogenation
Rh(III)-heteropolymolybdates
description New composites based on the [RhMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]<SUP>3−</SUP> (RhMo<SUB>6</SUB>) heteropolyanion supported on pillared (PILC), heterostructured (PCH) and functionalized(PILC-F) and (PCH-F) systems based on clays were prepared, characterized and tested as catalysts in the liquid-phase hydrogenation of cinnamaldehyde. The original phases and supported systems were characterized using several techniques such as powder X-ray diffraction (XRD), scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM–EDS), Raman microprobe studies, X-ray photoelectron spectroscopy (XPS), thermogravimetry and differential thermal analyses (TG-DSC), temperature programmed reduction (TPR), and textural analysis (BET method), which confirmed their functionalization, physicochemical modification and the nature of Mo adsorbed species. Active acidic, basic and redox sites were determined by temperature programmed surface reaction (TPSR). Mo loading reached 7 wt% for the system RhMo<SUB>6</SUB>/PCH-F and 3 wt% for the system RhMo<SUB>6</SUB>/PILC-F, while unfunctionalized clay systems showed a value of 1 wt% of Mo. The catalytic performance showed that PCH-based composites were the most active and reached up to 56% conversion at 360 min of reaction when tested in liquid-phase cinnamaldehyde hydrogenation. The selectivity for all the systems was mainly toward hydrocinnamic aldehyde (HCAL) and reached 77% for the RhMo<SUB>6</SUB>/PCH-F catalyst at 25% conversion.
format Articulo
Articulo
author Bertolini, Guillermo Ramón
Vetere, Virginia
Gallo, María Angélica
Muñoz, Mercedes
Casella, Mónica Laura
Gambaro, Luis A.
Cabello, Carmen Inés
author_facet Bertolini, Guillermo Ramón
Vetere, Virginia
Gallo, María Angélica
Muñoz, Mercedes
Casella, Mónica Laura
Gambaro, Luis A.
Cabello, Carmen Inés
author_sort Bertolini, Guillermo Ramón
title Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
title_short Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
title_full Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
title_fullStr Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
title_full_unstemmed Composites based on modified clay assembled Rh(III)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
title_sort composites based on modified clay assembled rh(iii)–heteropolymolybdates as catalysts in the liquid-phase hydrogenation of cinnamaldehyde
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/85930
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