Journal
CHEMISTRY OF MATERIALS
Volume 31, Issue 14, Pages 5075-5080Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.9b00851
Keywords
-
Funding
- Italian Ministry of Education and Research (MIUR) under project Beyond-Nano [PON a3_00363]
- EC
- Ente Cassa di Risparmio di Firenze
- project EnergyLab, POR FESR 2014-2020
- project FELIX (Fotonica ed Elettronica Integrate per l'Industria) [6455]
- MIUR [20154X9ATP]
Ask authors/readers for more resources
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 angstrom, 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available