Jump to main content
Jump to site search

Issue 8, 2012
Previous Article Next Article

Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies

Author affiliations

Abstract

Core–shell small RuPt nanoparticles stabilized by a polymer (polyvinylpyrrolidone, PVP) have been prepared by co-decomposition of [Ru(COD)(COT)] [(1,5-cyclooctadiene)(1,3,5-cyclooctatriene)ruthenium] and [Pt(CH3)2(COD)] [dimethyl(1,5-cyclooctadiene)platinum(II)] organometallic complexes at room temperature. The control of the metal segregation is made possible by the difference in the decomposition temperature of the metal precursors, giving rise to a heterogeneous nucleation process. The structural composition of these nanoparticles has been determined by a combination of techniques (TEM, HREM, WAXS, EXAFS, STEM-HAADF, IR, NMR). In particular, after adsorption of 13CO as a probe molecule, solid-state NMR investigation provided useful information on the chemical segregation in these nanoparticles.

Graphical abstract: Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Sep 2011, accepted on 09 Dec 2011 and first published on 11 Jan 2012


Article type: Paper
DOI: 10.1039/C2JM14757B
Citation: J. Mater. Chem., 2012,22, 3578-3584
  •   Request permissions

    Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies

    P. Lara, M. Casanove, P. Lecante, P. Fazzini, K. Philippot and B. Chaudret, J. Mater. Chem., 2012, 22, 3578
    DOI: 10.1039/C2JM14757B

Search articles by author

Spotlight

Advertisements