Joseph, J. and Gomathi, H. and Prabhakararao, G.
(2002)
Comparative study of the transport characteristics of metal cations in metal hexacyanoferrate matrices.
Bulletin of Electrochemistry , 18 (05).
pp. 231-236.
ISSN 0256-1654
Abstract
The facility with which the inter-conversion of the different redox states occurs among the metal hexacyanoferrates (such as iron, nickel, cobalt, zinc, copper etc.) is largely dependent on the ease with which the uptake or release of a supporting metal cation into/from the host metal hexacyanoferrate is achieved concurrently with the associated electron transfer. The ramifications of the above as reflected in good reversibility or otherwise are quite important and crucial factors in deciding the successful application of these systems in a number of situations such as electrochromic devices, ion-sensors and mediated electron transfer catalysts. In this paper a detailed examination of the comparative data on the electrical charge associated with the intercalated metal species, transport characteristics of the metal cation and its diffusion coefficient would be presented with special reference to iron, nickel and cobalt hexacyanoferrate matrices and entry of K, Na and Li cations into them using electrochemical techniques
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