RT journal article
T1 Low-temperature hydroformylation of ethylene by phosphorous stabilized Rh sites in a one-pot synthesized Rh-(O)-P-MFI zeolite
A1 Zhao, M.
A1 Li, C.
A1 Gómez, D.
A1 Gonell, F.
A1 Diaconescu, V.M.
A1 Simonelli, L.
A1 López Haro, Miguel
A1 Calvino Gámez, José Juan
A1 Meira, D.M.
A1 Concepción, P.
A1 Corma, A.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB Zeolites containing Rh single sites stabilized by phosphorous were preparedthrough a one-pot synthesis method and are shown to have superior activityand selectivity for ethylene hydroformylation at low temperature (50 °C).Catalytic activity is ascribed to confined Rh2O3 clusters in the zeolite whichevolve under reaction conditions into single Rh3+ sites. These Rh3+ sites areeffectively stabilized in a Rh-(O)-P structure by using tetraethylphosphoniumhydroxide as a template, which generates in situ phosphate species after H2activation. In contrast to Rh2O3, confined Rh0 clusters appear less active inpropanal production and ultimately transform into Rh(I)(CO)2 under similarreaction conditions. As a result, we show that it is possible to reduce thetemperature of ethylene hydroformylation with a solid catalyst down to 50 °C,with good activity and high selectivity, by controlling the electronic andmorphological properties of Rh species and the reaction conditions.
PB Springer Nature
SN 2041-1723
YR 2023
FD 2023
LK http://hdl.handle.net/10498/31909
UL http://hdl.handle.net/10498/31909
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026