Thermodynamic clarification of the curious ferric/potassium ion exchange accompanying the electrochromic redox reactions of Prussian blue, iron(III) hexacyanoferrate(II)
UNSPECIFIED. (2004) Thermodynamic clarification of the curious ferric/potassium ion exchange accompanying the electrochromic redox reactions of Prussian blue, iron(III) hexacyanoferrate(II). JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 126 (33). pp. 10472-10477. ISSN 0002-7863Full text not available from this repository.
Official URL: http://dx.doi.org/10.1021/ja040055r
The recent Glasser-Jenkins method for lattice-energy prediction, applied to an examination of the solid-state thermodynamics of the cation exchanges that occur in electrochromic reactions of Prussian Blue, provides incisive thermodynamic clarification of an ill-understood ion exchange that accompanies particularly the early electrochromic cycles. A volume of 0.246 +/- 0.017 nm(3) formula unit(-1) for the ferrocyanide ion, Fe-II[(CN)(6)],(4-) is first established and then used, together with other formula unit-volume data, to evaluate the changes of standard enthalpy, entropy, and Gibbs energy in those ion-exchange reactions. The results impressively show by how much the exchange of interstitial Fe3+ ions by alkali metal ions, usually exemplified by K+, is thermodynamically favored.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Journal or Publication Title:||JOURNAL OF THE AMERICAN CHEMICAL SOCIETY|
|Publisher:||AMER CHEMICAL SOC|
|Date:||25 August 2004|
|Number of Pages:||6|
|Page Range:||pp. 10472-10477|
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