Graphene moiety entrapped for the
fist time within the crystal lattice of palladium
20-Apr-2023
- On April 18, 2023, the successful entrapment of graphene oxide layers
within the lattice of palladium nanoparticles was first reported in a
preprint
posted at ChemRxiv.
Dubbed “GrafeoPlad”, the resulting material
comprised of aggregated
hybrid nanoparticles was successfully
applied by
PhD student Matteo
Formenti to catalyze the selective hydrogenation of
nitrobenzene to
aniline at room temperature.
"
The entrapment of the graphene moiety in
the lattice of metal crystallite opens new avenues in catalysis science
and technology" says
Cristina
Della
Pina commenting the news. Graphene, indeed, was not
deposited by the team on the outer surface of the metal crystallites
(graphene on metal), but tightly entrapped within the crystal structure
(graphene in metal).
"
The delocalized pi-electrons of graphene
oxide in the metal", adds
Rosaria
Ciriminna, the other corresponding author of the paper, "
interact
in a uniquely new way with the Fermi sea electrons of metal"".
Carried out at Milano's University
Department of Chemistry, the doctorate of Matteo Formenti concerns a
research project entitled "Unveiling the double face of metal-based
catalysis: promoter for the C-C cross coupling reactions and enhancer for
the degradation of stone materials by outdoor pollution".
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