Black Phosphorus/Palladium Nanohybrid: Unraveling the Nature of P–Pd Interaction and Application in Selective Hydrogenation
| Autor: | Giuseppe Nicotra, Martina Banchelli, Paolo Matteini, Francesco d'Acapito, Corrado Spinella, Stefan Heun, Maria Caporali, Andrea Giaccherini, Stefano Caporali, Francesca Telesio, Matteo Vanni, Antonio M. Mio, Maurizio Peruzzini, Manuel Serrano-Ruiz |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
General Chemical Engineering
Coordination number Nanoparticle chemistry.chemical_element FOS: Physical sciences 02 engineering and technology 010402 general chemistry Photochemistry Heterogeneous catalysis 01 natural sciences Article chemistry.chemical_compound Physics - Chemical Physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Materials Chemistry Chemoselectivity Chemical Physics (physics.chem-ph) Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics catalysis Ligand Chemistry Materials Science (cond-mat.mtrl-sci) Black phosphorus General Chemistry 021001 nanoscience & nanotechnology 2D materials palladium Materials science 0104 chemical sciences Nanoparticles palladium black phosphorus hybrid materials Covalent bond nanoparticles 0210 nano-technology Phosphine Palladium |
| Zdroj: | Chemistry of Materials Chemistry of materials (Online) 31 (2019): 5075–5080. doi:10.1021/acs.chemmater.9b00851 info:cnr-pdr/source/autori:Matteo Vanni, Manuel Serrano-Ruiz, Francesca Telesio, Stefan Heun, Martina Banchelli, Paolo Matteini, Antonio Massimiliano Mio, Giuseppe Nicotra, Corrado Spinella, Stefano Caporali, Andrea Giaccherini, Francesco D'Acapito, Maria Caporali, Maurizio Peruzzini/titolo:Black Phosphorus%2FPalladium Nanohybrid: Unraveling the Nature of P-Pd Interaction and Application in Selective Hydrogenation/doi:10.1021%2Facs.chemmater.9b00851/rivista:Chemistry of materials (Online)/anno:2019/pagina_da:5075/pagina_a:5080/intervallo_pagine:5075–5080/volume:31 |
| ISSN: | 1520-5002 0897-4756 |
| DOI: | 10.1021/acs.chemmater.9b00851 |
| Popis: | The burgeoning interest in two-dimensional (2D) black phosphorus (bP) contributes to the expansion of its applications in numerous fields. In the present study, 2D bP is used as a support for homogeneously dispersed palladium nanoparticles directly grown on it by a wet chemical process. Electron energy loss spectroscopy-scanning transmission electron microscopy analysis evidences a strong interaction between palladium and P atoms of the bP nanosheets. A quantitative evaluation of this interaction comes from the X-ray absorption spectroscopy measurements that show a very short Pd-P distance of 2.26 Å, proving for the first time the existence of an unprecedented Pd-P coordination bond of a covalent nature. Additionally, the average Pd-P coordination number of about 1.7 reveals that bP acts as a polydentate phosphine ligand toward the surface of the Pd atoms of the nanoparticles, thus preventing their agglomeration and inferring with structural stability. These unique properties result in a superior performance in the catalytic hydrogenation of chloronitroarenes to chloroanilines, where a higher chemoselectivity in comparison to other heterogeneous catalyst based on palladium has been observed. |
| Databáze: | OpenAIRE |
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