Evidence of dynamical local scale distribution heterogeneities in CsF-AF (A=Li, Na, K and Rb) molten salts - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Journal of Fluorine Chemistry Année : 2015

Evidence of dynamical local scale distribution heterogeneities in CsF-AF (A=Li, Na, K and Rb) molten salts

Résumé

The local structure of molten CsF-AF (A = Li, Na, K and Rb) has been studied by high temperature Nuclear Magnetic Resonance (NMR) spectroscopy. The 19F and 133Cs chemical shifts have been measured as a function of the molar fraction of CsF. 19F chemical shift varies linearly with composition while 133Cs chemical shift presents a break around the eutectics composition. Furthermore, in molten CsF-LiF at high CsF concentration, 133Cs chemical shift is nearly constant. The evolutions of 19F and 133Cs chemical shifts versus CsF-AF composition have been interpreted as a signature of dynamical local scale distribution heterogeneities.

Domaines

Chimie
Fichier principal
Vignette du fichier
Rollet_Evidence_of.pdf (301.53 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01199484 , version 1 (15-09-2015)

Identifiants

Citer

Anne-Laure Rollet, Catherine Bessada. Evidence of dynamical local scale distribution heterogeneities in CsF-AF (A=Li, Na, K and Rb) molten salts. Journal of Fluorine Chemistry, 2015, 180, pp.40-44. ⟨10.1016/j.jfluchem.2015.08.020⟩. ⟨hal-01199484⟩
130 Consultations
159 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More