Control of silver–polymer aggregation mechanism by primary particle spatial correlations in dynamic fractal-like geometry (Articolo in rivista)

Type
Label
  • Control of silver–polymer aggregation mechanism by primary particle spatial correlations in dynamic fractal-like geometry (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Campi G., Mari A., Pifferi A., Amenitsch H., Fratini M., Suber L. (2011)
    Control of silver–polymer aggregation mechanism by primary particle spatial correlations in dynamic fractal-like geometry
    in Nanoscale (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Campi G., Mari A., Pifferi A., Amenitsch H., Fratini M., Suber L. (literal)
Pagina inizio
  • 3774 (literal)
Pagina fine
  • 3779 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 3 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • http://dx.doi.org/10.1039/C1NR10474H (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR - Istituto di Cristallografia, via Salaria, Km 29.300, Monterotondo Stazione (RM), I-0015, Italy CNR - Istituto di Struttura della Materia, via Salaria, Km 29.300, Monterotondo Stazione (RM), I-00015, Italy Institut of Biophysics and Nanosystems Research, Austrian Academy od Sciences, Schmiedlstrasse 6, 8042 Graz, Austria CNR - Istituto di Fotonica e Nanotecnologie, via Cineto Romano, 42, 00156 Roma, Italy (literal)
Titolo
  • Control of silver–polymer aggregation mechanism by primary particle spatial correlations in dynamic fractal-like geometry (literal)
Abstract
  • Silver nanocrystals have been prepared by reacting silver nitrate with ascorbic acid in aqueous solution containing a low concentration of a commercial polynaphthalene sulfonate polymer (Daxad 19). Various crystalline morphologies have been obtained simply by tuning the reaction temperature. We have investigated the nanoparticle formation mechanism at three different temperatures by in situ and time resolved small angle X-ray scattering measurements. By modeling the scattering intensity with interacting spherical particles in a fractal-like polymer–Ag matrix, we found signatures of nucleation, growth and assembly of primary particles of about 15–20 nm. We observed how the time evolution of both spatial correlations between primary particles and the dynamic fractal geometry of the polymer–Ag matrix could influence and determine both the aggregation mechanism and the morphology of forming nanostructures in solution. (literal)
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