Black Phosphorus/Palladium Nanohybrid Unraveling the Nature of P-Pd Interaction and Application in Selective Hydrogenation

Black Phosphorus/Palladium Nanohybrid : Unraveling the Nature of P-Pd Interaction and Application in Selective Hydrogenation

Copyright © 2019 American Chemical Society.

Bibliographische Detailangaben
Veröffentlicht in:Chemistry of materials : a publication of the American Chemical Society. - 1998. - 31(2019), 14 vom: 23. Juli, Seite 5075-5080
1. Verfasser: Vanni, Matteo (VerfasserIn)
Weitere Verfasser: Serrano-Ruiz, Manuel, Telesio, Francesca, Heun, Stefan, Banchelli, Martina, Matteini, Paolo, Mio, Antonio Massimiliano, Nicotra, Giuseppe, Spinella, Corrado, Caporali, Stefano, Giaccherini, Andrea, D'Acapito, Francesco, Caporali, Maria, Peruzzini, Maurizio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Chemistry of materials : a publication of the American Chemical Society
Schlagworte:Journal Article
Beschreibung
Zusammenfassung:Copyright © 2019 American Chemical Society.
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
Beschreibung:Date Revised 01.11.2019
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:0897-4756
DOI:10.1021/acs.chemmater.9b00851