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Kinayyigit S, Lara P, Lecante P, et al. Probing the surface of platinum nanoparticles with 13CO by solid-state NMR and IR spectroscopies. Nanoscale. 2013;6(1):539-46doi: 10.1039/c3nr03948j.
Kinayyigit, S., Lara, P., Lecante, P., Philippot, K., & Chaudret, B. (2014). Probing the surface of platinum nanoparticles with 13CO by solid-state NMR and IR spectroscopies. Nanoscale, 6(1), 539-46. https://doi.org/10.1039/c3nr03948j
Kinayyigit, Solen, et al. "Probing the surface of platinum nanoparticles with 13CO by solid-state NMR and IR spectroscopies." Nanoscale vol. 6,1 (2014): 539-46. doi: https://doi.org/10.1039/c3nr03948j
Kinayyigit S, Lara P, Lecante P, Philippot K, Chaudret B. Probing the surface of platinum nanoparticles with 13CO by solid-state NMR and IR spectroscopies. Nanoscale. 2014 Jan 07;6(1):539-46. doi: 10.1039/c3nr03948j. Epub 2013 Nov 15. PMID: 24241169.
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Nanoscale. 2014 Jan 07;6(1):539-46. doi: 10.1039/c3nr03948j. Epub 2013 Nov 15.

Probing the surface of platinum nanoparticles with 13CO by solid-state NMR and IR spectroscopies.

Nanoscale

Solen Kinayyigit, Patricia Lara, Pierre Lecante, Karine Philippot, Bruno Chaudret

Affiliations

  1. CNRS, LCC (Laboratoire de Chimie de Coordination du CNRS), BP 44099, 205 Route de Narbonne, F-31077 Toulouse Cedex 4, France. [email protected].

PMID: 24241169 DOI: 10.1039/c3nr03948j

Abstract

The synthesis and full characterization of platinum nanoparticles (Pt NPs) prepared by decomposition of the Pt(dba)2 complex in the presence of CO and H2 and stabilized either sterically by a polymer, polyvinylpyrrolidone or chemically by a ligand, diphenylphosphinobutane, are reported. In these studies, (13)CO was used as a probe molecule to investigate the surface of the particles, using IR and solid-state NMR spectroscopies with magic angle spinning (MAS-NMR). Three nanosystems with different sizes are described: Pt/PVP/(13)CO (monomodal: 1.2 nm), Pt/dppb/(13)CO (bimodal: 1.2 nm and 2.0 nm) and Pt/dppb/H2 (monomodal: 2.0 nm) NPs. Spectroscopic data suggest a modification of the electronic state of the nanoparticles between 1.2 nm and 2.0 nm which can be related to the presence of Knight shift.

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