Voltammetric study of the stability of deposited Prussian blue films against succesive potential cycling

Roig, A.; Navarro, José María Martínez; Garcia, J.; Vicente, F.

doi:10.1016/0013-4686(94)80083-9

Cited by 74 publications

(70 citation statements)

References 21 publications

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“…Thus, electro-optical changes associated to this process cannot be studied on gold electrodes in KCl solutions. For this purpose the transparent ITO (indium-tin oxide) electrode is a better choice which proved both, good optical properties in the range of wavelengths studied and a very stable response at very anodic potentials in KCl solutions [25,33,36,37].…”

Section: Fementioning

confidence: 99%

“… ions, and the collapse of the structure takes place [25,26]. It is also possible that chloride anions enter the PB film during the oxidation process to balance electrical charge and to form the structure, but this process seems to not take place to a great extent [27,28].…”

Section: Fementioning

confidence: 99%

“…These s-PB films can be reversibly reduced to the colorless form (ES) and now, it is also possible to reversibly oxidize to the PY form since the electrical charge may be balanced by expelling potassium cations from within [12,25,26]. These electrochemical reactions of PB films in acidic KCl aqueous solutions have been described in the literature by some simplified reactions which evidently imply the exchange of charged species in order to keep the films electroneutrality: Experimental results for these processes clearly proved that the electrical charge enclosed within the voltammetric peak associated to the PB PY process is about 60% of the electrical charge enclosed in the voltammetric peak corresponding to the PB ES process [33].…”

Section: Fementioning

confidence: 99%

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Identification of electroactive sites in Prussian Yellow films

Agrisuelas

Garcı́a-Jareño

Moreno-Guerrero

et al. 2013

Electrochimica Acta

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Abstract.Prussian Blue films were electrogenerated on the surface of the transparent ITO electrodes. The electrochemical oxidation to the Prussian Yellow form was investigated by means of in situ voltammetry and Vis-NIR spectroscopic techniques. Changes of the whole spectra between 400 and 950 nm were analyzed and three characteristic wavelengths were selected to in situ follow the electrochemical changes of the films.Voltammetric peaks and absorbance derivative curves at these three wavelengths were deconvoluted and were interpreted such as the overlapping of different electrochemical processes. The correlation between these overlapped processes has allowed proposing three different electrochemical processes for the interpretation of the whole electrochemical response. One of these processes corresponds to the oxidation of

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Section: Fementioning

confidence: 99%

Section: Fementioning

confidence: 99%

Section: Fementioning

confidence: 99%

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Identification of electroactive sites in Prussian Yellow films

Agrisuelas

Garcı́a-Jareño

Moreno-Guerrero

et al. 2013

Electrochimica Acta

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“…However, if freshly generated PB films, known as insoluble PB, are cycled around the PB ES system some of the K + cations which enter the film during the reduction process do not leave the PB film and a new PB structure formula is generated, known as soluble PB [18][19][20] …”

Section: ( ( ) ) M M Cnmentioning

confidence: 99%

“…Stability against successive cycling around the PB ES system in acid KCl solutions of these PB films has been tested and proved that more than 10000 cycles are possible with a small loss of electric charge within the voltammetric peaks 20 . PB films can also be oxidized to the yellow form known as Prussian Yellow (PY).…”

Section: ( ( ) ) M M Cnmentioning

confidence: 99%

Electrochromic Behavior of Prussian Yellow

et al. 2013

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Prussian Blue films were studied by in situ electrogravimetric and spectroelectrochemical methods during the electrochemical oxidation to the Prussian Yellow form. Spectroelectrochemical studies detected important absorbance changes during electrochemical experiments at 430 nm and 690 nm corresponding to the appearance of the yellow form and to the disappearance of the characteristic blue color. These changes of absorbance were well related with the voltammetric peaks. This redox process has also been studied by in situ electrochemical impedance spectroscopy, mass impedance and color impedance at 690 nm. It has been found that crossed impedance functions obtained from the original ones provide interesting information on the participation of both, cations and anions during electrochemical processes.

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Electrochromic Materials Based on Prussian Blue and Other Metal Metallohexacyanates

Rosseinsky

Mortimer

2013

Electrochromic Materials and Devices

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Voltammetric study of the stability of deposited Prussian blue films against succesive potential cycling

Cited by 74 publications

References 21 publications

Identification of electroactive sites in Prussian Yellow films

Identification of electroactive sites in Prussian Yellow films

Electrochromic Behavior of Prussian Yellow

Electrochromic Materials Based on Prussian Blue and Other Metal Metallohexacyanates

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