Structural characterization of bimetallic Pd-Cu vapor derived catalysts
A. BalernaINFN, Frascati National Laboratory, 00044 Frascati, ItalyClaudio EvangelistiCNR, Institute of Molecular Science and Technologies (ISTM), 20138 Milano, ItalyRinaldo PsaroCNR, Institute of Molecular Science and Technologies (ISTM), 20138 Milano, ItalyGraziano FusiniCNR, Institute of Molecular Science and Technologies (ISTM), 20138 Milano, ItalyAdriano CarpitaDepartment of Chemistry and Industrial Chemistry, University of Pisa, 56126 Pisa, Italy
2016en
ABI
Abstract
Pd-Cu bimetallic Solvated Metal Atoms (SMA) were synthesized by metal vapor synthesis technique and supported on PVPy resin. Since the catalytic activity, of the Pd-Cu system turned out to be quite high also compared to the corresponding monometallic system, a structural characterization, using electron microscopy techniques and X-ray Absorption Fine Structure spectroscopy, was performed. HRTEM analysis showed the presence of Pd particles distributed in a narrow range with a mean diameter of about 2.5 nm while the XAFS analysis, confirmed the presence of the Pd nanoparticles but revealed also some alloying with Cu atoms.
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