RT journal article
T1 Efficient Alkyne Semihydrogenation Catalysis Enabled by Synergistic Chemical and Thermal Modifications of a PdIn MOF
A1 Martínez, J. S.
A1 Mazarío, J.
A1 Lopes, C. W.
A1 Trasobares Llorente, Susana
A1 Calvino Gámez, José Juan
A1 Agostini, Giovanni
A1 Oña Burgos, Pascual
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 MOF-mediated
K1 bimetallic nanoparticles
K1 heterogeneous catalysis
K1 alkyne semihydrogenation
K1 nanomaterials characterization
AB Recently, there has been a growing interest in using MOF templating to synthesize heterogeneous catalysts based on metal nanoparticles on carbonaceous supports. Unlike the common approach of direct pyrolysis of PdIn-MOFs at high temperatures, this work proposes a reductive chemical treatment under mild conditions before pyrolysis (resulting in PdIn-QT). The resulting material (PdIn-QT) underwent comprehensive characterization via state-of-the-art aberration-corrected electron microscopy, N2 physisorption, X-ray absorption spectroscopy, Raman, X-ray photoelectron spectroscopy, and X-ray diffraction. These analyses have proven the existence of PdIn bimetallic nanoparticles supported on N-doped carbon. In situ DRIFT spectroscopy reveals the advantageous role of indium (In) in regulating Pd activity in alkyne semihydrogenation. Notably, incorporating a soft nucleation step before pyrolysis enhances surface area, porosity, and nitrogen content compared to direct MOF pyrolysis. The optimized material exhibits outstanding catalytic performance with 96% phenylacetylene conversion and 96% selectivity to phenylethylene in the fifth cycle under mild conditions (5 mmol phenylacetylene, 7 mg cat, 5 mL EtOH, R.T., 1 H2 bar).
PB ACS
SN 2155-5435
YR 2024
FD 2024-03-14
LK http://hdl.handle.net/10498/32928
UL http://hdl.handle.net/10498/32928
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026