In Memory of Professor Hans-Georg von Schnering
Article first published online: 12 APR 2011
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Zeitschrift für anorganische und allgemeine Chemie
Volume 637, Issue 7-8, pages 1036–1044, June 2011
How to Cite
Clemens, O., Bauer, M., Haberkorn, R. and Beck, H. (2011), On the Existence of LiFeVO4 – Tales and Imagination. Z. anorg. allg. Chem., 637: 1036–1044. doi: 10.1002/zaac.201100037
Supporting information for this article is available on the WWW under http://dx.doi.org/10.1002/zaac.201100037 or from the author.
- Issue published online: 29 JUN 2011
- Article first published online: 12 APR 2011
- Manuscript Accepted: 12 APR 2011
- Manuscript Received: 15 JAN 2011
- Landesgraduiertenförderung Saarland
- Lithium iron vanadate;
- Rietveld analysis;
In this paper, we report investigations on the synthesis of LiFeVO4 as well as a reinvestigation of recently published research reports. Starting with compounds containing V4+ and Fe3+ for synthesis showed to be the best way to realize the desired composition. A single phase material could not be prepared, instead, we find a disproportionation of V4+ to V3+ and V5+ and separation of these ions into two different phases, such as Li0.5+Fe(5z–1)/2z3+V0.5z3+O4 and Li(1–0.5z)/(1–z)+Fe(1.5–2.5z)/(1–z)3+V0.5/(1–z)5+O4, with z ≈ 0.45. Additionally, XANES / EXAFS measurements were performed to determine the cation oxidation states and coordination.