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Galliez, K., Deniard, P., Petit, P.-E., Lambertin, D., Bart, F. & Jobic, S. (2014) Modelling and quantification of intergrowth in gamma-MnO2 by laboratory pair distribution function analysis. J. Appl. Crystallogr. 47 552–560. 
Added by: Florent Boucher (2016-04-29 09:26:44)
Type de référence: Article
DOI: 10.1107/S1600576714000375
Numéro d'identification (ISBN etc.): 0021-8898
Clé BibTeX: Galliez2014
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Catégories: MIOPS
Mots-clés: absorber, beta-mno2, geopolymer, insertion, Lithium batteries, manganese oxides, mno2, nanoparticles, powder neutron-diffraction
Créateurs: Bart, Deniard, Galliez, Jobic, Lambertin, Petit
Collection: J. Appl. Crystallogr.
Consultations : 9/481
Indice de consultation : 3%
Indice de popularité : 0.75%
Résumé     
gamma-MnO2 is a material formed by random intergrowth of two phases, beta-MnO2 and R-MnO2. It is demonstrated here on seven gamma-MnO2 samples that pair distribution function analysis using a conventional X-ray diffraction setup (Bragg-Brentano geometry with a molybdenum anode) allows the quantification of this intergrowth simply via a simulation of the actual material by a mixture of beta-MnO2 and R-MnO2 phases. Although this method does not take into account specifically the relaxed distances in the vicinity of the intergrowth zone, it is found to be very robust, accurate and in full agreement with the widely used quantification based on the empirical approach of Chabre & Pannetier [Prog. Solid State Chem. (1995), 23, 1-130].
Added by: Florent Boucher  
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