@misc{10498/32928,
year = {2024},
month = {3},
url = {http://hdl.handle.net/10498/32928},
abstract = {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).},
publisher = {ACS},
keywords = {MOF-mediated},
keywords = {bimetallic nanoparticles},
keywords = {heterogeneous catalysis},
keywords = {alkyne semihydrogenation},
keywords = {nanomaterials characterization},
title = {Efficient Alkyne Semihydrogenation Catalysis Enabled by Synergistic Chemical and Thermal Modifications of a PdIn MOF},
doi = {10.1021/acscatal.4c00310?urlappend=%3Fref%3DPDF&jav=VoR&rel=cite-as},
author = {Martínez, J. S. and Mazarío, J. and Lopes, C. W. and Trasobares Llorente, Susana and Calvino Gámez, José Juan and Agostini, Giovanni and Oña Burgos, Pascual},
}