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Probing high-pressure reactions in heterogeneous materials by Raman spectroscopy

  Articoli su Riviste JCR/ISI  (anno 2014)

Autori:  Ceppatelli M., Gorelli F. A., Haines J., Santoro M., Bini R

Affiliazione Autori:  Univ Florence, Dipartimento Chim Ugo Schiff, I-50019 Sesto Fiorentino, Italy; LENS, European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, Italy; ICCOM CNR, I-50019 Sesto Fiorentino, Italy; UOS Roma, INO, Consiglio Nazl Ric, I-50019 Sesto Fiorentino, Italy; Univ Montpellier 2, Inst Charles Gerhardt Montpellier, CNRS, Equipe C2M,UMR 5253, F-34095 Montpellier, France; INO, Consiglio Nazl Ric, I-50019 Sesto Fiorentino, Italy

Riassunto:  The characterization of pressure induced structural and chemical transformations employing the Diamond Anvil Cell (DAC) technique often requires a high spatial resolution. This is due to the small sample dimensions when the compression reaches the megabar range, or when heterogeneous materials are obtained in pressure induced chemical reactions. The characterization of these samples can be performed by using synchrotron light based techniques, which can provide optical or X-ray spots of few microns, whereas laboratory experiments are limited to Raman spectroscopy. Here we describe a cutting-edge Raman system with a transverse spatial resolution of 1-3 mu m dedicated to the characterization of samples compressed in DACs. A few examples of the application of this technique to characterize different heterogeneous materials before and after high-pressure chemical reactions are reported to enlighten the performances of the system.

Rivista/Giornale:  ZEITSCHRIFT FUR KRISTALLOGRAPHIE
Volume n.:  229 (2)      Pagine da: 83  a: 91
Ulteriori informazioni:  Supported by the European Union under Contract 284-464, by the Italian Minister dell\'Istruzione, dell\'Universita e della Ricerca (MIUR) and by \"Firenze Hydrolab2\" through a grant by Ente Cassa di Risparmio di Firenze.
DOI: 10.1515/zkri-2013-1627

*Impact Factor della Rivista: (2014) 1.310   *Citazioni: 7
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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