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Synergistic Behavior of Bimetallic Rhenium Cluster Catalysts: Spectroscopic Investigation into the Nature of the Active Site
Author(s) -
Gianotti Enrica,
Shetti Vasudev N.,
Manzoli Maela,
Blaine Jonathan A. L.,
Pearl William C.,
Adams Richard D.,
Coluccia Salvatore,
Raja Robert
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000403
Subject(s) - bimetallic strip , rhenium , nanomaterial based catalyst , catalysis , mesoporous silica , cluster (spacecraft) , group 2 organometallic chemistry , chemistry , organometallic chemistry , nanoparticle , molecule , materials science , nanotechnology , mesoporous material , inorganic chemistry , organic chemistry , computer science , programming language
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.