Synergistic behavior of bimetallic rhenium cluster catalysts: spectroscopic investigation into the nature of the active site.
Single-site Re nanoparticles were produced by anchoring dirhenium organometallic clusters on to the inner walls of mesoporous silica. The presence of oxophilic atoms (Sb or Bi) is essential to obtain well dispersed Re(0) centers. The interaction between the organometallic cluster and the silica support is critical for the generation of well-defined and isolated Re(0) single sites. FTIR spectroscopy was used to track the decomposition of the organometallic precursors and the adsorption of probe molecules such as CO on the metal sites sheds valuable information on the catalytic potential of this new class of bimetallic nanocatalysts.
Department of Chemistry IFM and NIS-Centre of Excellence, University of Turin, V. P. Giuria 7, 10125 Turin, Italy. enrica.gianotti@unito.it
Enrica
E
Gianotti
Vasudev N
VN
Shetti
Maela
M
Manzoli
Jonathan A L
JA
Blaine
William C
WC
Pearl
Richard D
RD
Adams
Salvatore
S
Coluccia
Robert
R
Raja