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Energy-dispersive diffraction studies of inert anodes.

Scarlett, Nicola V.Y.; Madsen, Ian C.; Evans, John S.O.; Coelho, Alan A.; McGregor, Katherine; Rowles, Matthew; Lanyon, Marshall R.; Urban, Andrew J.


Nicola V.Y. Scarlett

Ian C. Madsen

Alan A. Coelho

Katherine McGregor

Matthew Rowles

Marshall R. Lanyon

Andrew J. Urban


A tomographic study of electrochemical cells to observe scales formed on inert anodes has been conducted using energy-dispersive synchrotron X-ray diffraction. This study is preparatory to an investigation that will observe this formation in situ during the cells' operation. The purpose of the current work was to determine whether this technique would be appropriate for such a study in terms of its sensitivity and whether the results could be quantified satisfactorily. A method has been developed for the quantitative phase analysis of energy-dispersive data using crystal-structure-based Rietveld refinement. This has been tested with standard materials and found to be comparable in accuracy to results obtained from traditional angular-dispersive diffraction. The lower limits of detection of the method have not been established quantitatively but qualitative differences can be seen between cells that have been cycled at different times. These differences indicate a linear relationship between scale formation and electrolysis time.


Scarlett, N. V., Madsen, I. C., Evans, J. S., Coelho, A. A., McGregor, K., Rowles, M., …Urban, A. J. (2009). Energy-dispersive diffraction studies of inert anodes. Journal of Applied Crystallography, 42(3), 502-512.

Journal Article Type Article
Acceptance Date Mar 9, 2009
Online Publication Date May 2, 2009
Publication Date 2009
Deposit Date May 6, 2013
Journal Journal of Applied Crystallography
Print ISSN 0021-8898
Electronic ISSN 1600-5767
Publisher International Union of Crystallography
Peer Reviewed Peer Reviewed
Volume 42
Issue 3
Pages 502-512