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Title: Iron hexacyanoferrate films : spectroelectrochemical distinction and electrodeposition sequence of 'soluble' (K+-containing) and 'insoluble' (K+-free) Prussian Blue, and composition changes in polyelectrochromic switching
Authors: Mortimer, Roger J.
Rosseinsky, David R.
Issue Date: 1984
Publisher: © The Royal Society of Chemistry
Citation: MORTIMER, R.J. and ROSSEINSKY, D.R., 1984. Iron hexacyanoferrate films : spectroelectrochemical distinction and electrodeposition sequence of 'soluble' (K+-containing) and 'insoluble' (K+-free) Prussian Blue, and composition changes in polyelectrochromic switching. Journal of the Chemical Society, Dalton Transactions, 9, pp. 2059 - 2062
Abstract: Films of Prussian Blue (PB) deposited by electroreduction in the absence of K + have absorbance maxima at 730 nm which narrow and shift on voltammetric cycling in KCI solution to 690 nm, these absorptions being deemed diagnostic of 'insoluble' and 'soluble' PB respectively. Spectroelectro- chemistry shows that the initial deposit even in K+ solution is invariably the insoluble form, being then converted into the soluble, irrespective of electrochemical conditions or solution composition ; this resolves several problems in the current literature. Electrochemical oxidation of PB gives continuous mixed-valence compositions up to complete oxidation ; by contrast, reduction to Prussian White involves clean conversion of one into the other at a critical potential.
Description: This article is closed access, it was published in the serial Journal of the Chemical Society, Dalton Transactions [© The Royal Society of Chemistry]. The definitive version is available at: http://dx.doi.org/10.1039/DT9840002059
Version: Published
DOI: 10.1039/DT9840002059
URI: https://dspace.lboro.ac.uk/2134/11531
Publisher Link: http://dx.doi.org/10.1039/DT9840002059
ISSN: 0300-9246
Appears in Collections:Closed Access (Chemistry)

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