Abstract
The electrochemically deposited Palladium hexacyanoferrate thin film on Glassy Carbon electrode (PdHCF|GC) has been studied in HCl, KCl and NaCl solutions by in_situ external reflection FTIR spectroelectrochemical technique. It is found that the behavior of the electroactive PdHCF film can be understood in terms of two states: Pd2Fe(II)(CN)6 formed in the inner layer and (M+)2Fe(II)(CN)6 (M+: electrolyte cation) formed in the outer layer. The inner layer is oxidized at Em=0.87 V in 1 mol/L KCl, while for the outer layer Em=0.77 V(vs. Ag/AgCl). In 1 mol/L NaCl or HCl solutions, half_wave potentials of these two layers are not well resolved, however corresponding CN stretching frequencies for the two states have been well observed in all three solutions. H+ has been found as a good supporting electrolyte for redox reactions of these two layers.
Keywords
In_situ, FTIR, Spectroelectrochemistry, Palladium hexacyanoferrate, Glassy carbon electrode
Publication Date
1999-05-28
Online Available Date
1999-05-28
Revised Date
1999-05-28
Received Date
1999-05-28
Recommended Citation
Aili Bo.
In Situ FTIR Spectroelectrochemical Study of Palladium Hexacyanoferrate Thin Film Deposited on Glassy Carbon Electrode[J]. Journal of Electrochemistry,
1999
,
5(2): Article 14.
DOI: 10.61558/2993-074X.3177
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol5/iss2/14
Included in
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