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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 12
BKCSDE 15(12)
December 20, 1994 

 
Title
Electrochemical Behavior of the Reduction of Thin Films of Ag3Fe(CN)6
Author
Seongbae Moon*, Jung Dae Moon
Keywords
Abstract
A thin film of silver ferricyanide (Ag3Fe(CN)6) on a platinum or gold substrates can be reduced electrochemically to the salt of silver ferrocyanide in potassium nitrate solution. The color of these films are orange and these films are shown to be electrochromic. The voltammogram is shown the asymmetry of the oxidation compared to the reduction wave under various supporting electrolytes. The standard heterogeneous electron-transfer rate for these films and bare Pt electrode were 0.49 × l0-2 and 1.30 × l0-2 cm/s, respectively, obtained using a rotating disc electrode. Rough D0 values, evaluated from the Levich equation, for Fe(CN)63-/4- at both SF thin film and a bare Pt disc electrode were shown as 1.2l × l0-6 and 0.94 × l0-6 cm2/s, respectively. The conductivities, as determined from the slops of the i-V curves for a ca. 1 mm sample for dried SF potassium rich and deficient bulk samples pressed between graphite electrodes, were 9.34 × l0-9 and 5.80 × l0-9 (Ω·cm)-1, respectively.
Page
1042 - 1045
Full Text
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