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.
Gianotti
Enrica
E
Department of Chemistry IFM and NIS-Centre of Excellence, University of Turin, V. P. Giuria 7, 10125 Turin, Italy. enrica.gianotti@unito.it
Shetti
Vasudev N
VN
Manzoli
Maela
M
Blaine
Jonathan A L
JA
Pearl
William C
WC
Adams
Richard D
RD
Coluccia
Salvatore
S
Raja
Robert
R