RT journal article
T1 Pt-WOx/C Catalysts for α, β-Unsaturated Aldehydes Hydrogenation: An NMR Study of the Effect of the Reactant Adsorption on Activity and Selectivity
A1 Stucchi, Marta
A1 Vasile, Francesca
A1 Cattaneo, Stefano
A1 Vomeri, Alessandro
A1 Hungría Hernández, Ana Belén
A1 Prati, Laura
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Cinnamaldehyde hydrogenation
K1 NMR adsorption analyses
K1 Pt-WO
K1 C catalysts
K1 T1ads
K1 T1bulk
K1 T1 relaxation times
AB The selective hydrogenation of alpha,beta-unsaturated aldehydes is an ideal case for studying the structure-activity relationships in heterogeneous catalysis. In particular, cinnamaldehyde can be used as probe molecule for revealing the competition between hydrogenation of C=C and C=O bond. Here, we investigated the effect of the modification of some Pt supported on carbon catalysts by WOx species in cinnamaldehyde hydrogenation, as WOx species are reported to increase the adsorption and activation of the C=O group of alpha, beta-unsaturated aldehydes. Classical techniques used for correlating the catalyst activity and the selectivity to the characteristic of the materials (XRD, HAADF-STEM, XEDS mapping and XPS) have been coupled with NMR relaxometry, as innovative application, to disclose how the molecule approaches the catalyst surface. This indeed constitutes a crucial aspect that rule the catalytic activity. Therefore, an innovative, holistic approach has been used to consider the whole catalytic system.
PB WILEY
SN 1099-0690
YR 2022
FD 2022
LK http://hdl.handle.net/10498/28706
UL http://hdl.handle.net/10498/28706
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026