A complete study of amorphous iron phosphate structure

Al-Hasni, B.M. and Mountjoy, G. and Barney, E. and Gismelseed, A. (2013) A complete study of amorphous iron phosphate structure. Journal of Non-Crystalline Solids, 380 . pp. 141-152. ISSN 00223093 (ISSN). (doi:https://doi.org/10.1016/j.jnoncrysol.2013.08.031) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Abstract

In-depth structural studies have been carried out on amorphous FePO 4 prepared by two different methods, and on amorphous LiFePO 4 prepared by electrochemical insertion of Li. The local environment of Fe in these samples was investigated using Mössbauer spectroscopy and X-ray absorption spectroscopy. X-ray and neutron diffraction and transmission electron microscopy have been applied to elucidate the first complete structural study of these materials. The Fe environment in amorphous FePO4 was found to be similar to that in quartz FePO4 where every Fe is surrounded by four oxygen atoms. However, the Fe environment in amorphous LiFePO4 is affected by the appearance of Fe metal in this sample as a consequence of Li insertion. Small angle scattering measurements confirmed the presence of nm-scale internal structure in the amorphous FePO4 prepared by thermal decomposition and in amorphous LiFePO4. © 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - J Non Cryst Solids [Field not mapped to EPrints] AD - College of Applied Sciences-Sohar, Engineering Department, P.O. Box 135, Sohar 311, Oman [Field not mapped to EPrints] AD - School of Physical Sciences, University of Kent, Canterbury CT2 7NH, United Kingdom [Field not mapped to EPrints] AD - ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom [Field not mapped to EPrints] AD - College of Science, Department of Physics, Sultan Qaboos University, Al Khod, P.O. Box 50, Muscat 123, Oman [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Amorphous, Modelling, Structure, X-ray, Amorphous iron, Electrochemical insertion, Internal structure, Local environments, Small angle scattering, Ssbauer spectroscopies, Structural studies, X-Ray and neutron diffraction, Amorphous materials, Decomposition, Lithium, Models, Neutron diffraction, Quartz, Structure (composition), Transmission electron microscopy, X ray absorption spectroscopy, X rays, Lithium alloys
Subjects: Q Science > QC Physics > QC176 Solid state physics
Q Science > QC Physics
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 16 Jan 2015 14:55 UTC
Last Modified: 27 Feb 2015 10:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46593 (The current URI for this page, for reference purposes)
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