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Titolo:
Solution calorimetric investigation of AgCl-AgI ionic conductor compositesat 298 K: observation of metastable AgI modifications
Autore:
Rogez, J; Garnier, A; Knauth, P;
Indirizzi:
Univ Aix Marseille 1, Lab PhysicoChim Mat, Ctr St Charles, F-13331 Marseille 3, France Univ Aix Marseille 1 Marseille France 3 les, F-13331 Marseille 3, France CNRS, Ctr Thermodynam & Microcalorimetrie, F-13331 Marseille, France CNRSMarseille France F-13331 crocalorimetrie, F-13331 Marseille, France
Titolo Testata:
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
fascicolo: 1, volume: 63, anno: 2002,
pagine: 9 - 14
SICI:
0022-3697(200201)63:1<9:SCIOAI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHASE;
Keywords:
inorganic compounds; interfaces; defects; thermodynamic properties; X-ray diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Knauth, P Univ Aix Marseille 1, Lab PhysicoChim Mat, Ctr St Charles, F-13331 Marseille 3, France Univ Aix Marseille 1 Marseille France 3 31 Marseille 3, France
Citazione:
J. Rogez et al., "Solution calorimetric investigation of AgCl-AgI ionic conductor compositesat 298 K: observation of metastable AgI modifications", J PHYS CH S, 63(1), 2002, pp. 9-14

Abstract

The enthalpies of solution of pure silver halides AgCl and AgI and a composite material with molar composition 0.5 AgCl-0.5 AgI were measured at 298 K in a mixture of Na2S2O3 (1 M) and NH4OH (1 M). X-ray diffraction patternsshowed that the composite material contained the metastable gamma -AgI phase; different mechanisms for its stabilization were discussed. The phase transition enthalpies of AgI modifications and the enthalpy of formation of the composite material were deduced from the measurements. The latter could be related to a change of interfacial enthalpies. (C) 2001 Elsevier ScienceLtd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 11:36:46