uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Raman spectroscopic study of the phase transitions sequence in Li3Fe2(PO4)(3) and Na3Fe2(PO4)(3) at high temperature
Show others and affiliations
2009 (English)In: Journal of Molecular Structure, ISSN 0022-2860, E-ISSN 1872-8014, Vol. 936, 147-155 p.Article in journal (Refereed) Published
Abstract [en]

The phase transition properties of A3Fe2(PO4)3 (A = Li, Na) were studied by Raman spectroscopy. Several Raman bands change continuously in 25–400 °C temperature range, indicating a phase transition from the γ, β to the α-phase occurring at this range of temperature. Bands caused by vibrations of phosphate anion and different ions have been found. The spectra analysis reveals that the modes, located at low frequency range 100–400 cm−1, near 500 cm−1 at room temperature, are the most thermo-sensitive. In addition, the modes corresponding to bond valence stretching of (PO4) unit in the frequency region 970–1200 cm−1 show also evolution with temperature but less sensitive than the above ones. It is observed that phosphate groups show some ordering with temperature. According to our Raman study, we can state that each of the compounds LiFeP and NaFeP shows two reversible phase transformations in the temperature range studied.

Place, publisher, year, edition, pages
2009. Vol. 936, 147-155 p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-119471DOI: 10.1016/j.molstruc.2009.07.035ISI: 000273349000024OAI: oai:DiVA.org:uu-119471DiVA: diva2:300295
Available from: 2010-02-25 Created: 2010-02-25 Last updated: 2010-12-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Solid Earth Geology
In the same journal
Journal of Molecular Structure
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 189 hits
ReferencesLink to record
Permanent link

Direct link