Polynuclear nickel hexacyanoferrates: monitoring of film growth and hydrated counter-cation flux/storage during redox reactions

Bácskai, J.; Martinusz, K.; Czirók, E.; Inzelt, György; Kulesza, Paweł J.; Malik, Marcin A.

doi:10.1016/0022-0728(94)03788-5

Cited by 186 publications

(145 citation statements)

References 27 publications

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“…[252] PBs have been used for the preparation of modified electrodes [253][254][255][256][257][258][259][260][261][262] for multiple applications: from electrochemical sensors [263][264][265][266][267][268][269][270][271] to electrochromic displays. [ 272 -274 ] In the field of electrocatalysis, different derivatives have been used for the oxidation or reduction of organic materials.…”

Section: Prussian Blue Derivativesmentioning

confidence: 99%

Water Oxidation at Electrodes Modified with Earth‐Abundant Transition‐Metal Catalysts

2014

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Section: Prussian Blue Derivativesmentioning

confidence: 99%

Water Oxidation at Electrodes Modified with Earth‐Abundant Transition‐Metal Catalysts

2014

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“…Among the analogues of Prussian Blue, copper hexacyanoferrate shows a well-defined, reversible and reproducible electrochemical response in supporting electrolytes containing not only potassium but also other alkali metal cations such as lithium, sodium, rubidium or cesium [15][16][17][18], contrary to Prussian Blue that only shows good electroactivity in electrolytes containing K + .…”

Section: E-mail Address: Storresi@iquspbr (Si Córdoba De Torresi)mentioning

confidence: 99%

Polypyrrole/copper hexacyanoferrate hybrid as redox mediator for glucose biosensors

Fiorito

Brett

Torresi

2006

Talanta

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A copper containing Prussian Blue analogue was incorporated into a conducting polypyrrole film. The modified electrode was synthesized through an electrochemical two-step methodology leading to very stable and homogeneous hybrid films. These electrodes were proved to show excellent catalytic properties towards H 2 O 2 detection, with a performance higher than those observed for Prussian Blue and other analogues. Electrochemical impedance spectroscopy experiments demonstrated that the excellent performance of these hybrid films is strongly related to the electronic conductivity of the polymeric matrix that is wiring the copper hexacyanoferrate sites. A glucose biosensor was built-up by the immobilization of glucose oxidase; the sensitivity obtained being higher than other biosensors reported in the literature even in Na + containing electrolytes.

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“…In the present work, we consider the ionically (K + ) and electronically (mixed-valence electron-hopping) conducting polynuclear inorganic material, namely Prussian Blue type nickel hexacyanoferrate [22][23][24][25][26][27] as material for potential application in DSSC as solid redox mediator (charge relay). Redox reactions of metal hexacyanoferrates are fast and reversible, and the systems are characterized by very good chemical and mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterization of Prussian blue type nickel hexacyanoferrate redox mediator for potential application as charge relay in dye-sensitized solar cells

Rutkowska

Andrearczyk

Żołądek

et al. 2011

J Solid State Electrochem

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A polynuclear electronically/ionically (redox) conducting mixed-valent inorganic material such as nickel (II) hexacyanoferrate(II,III), NiHCF, was considered for potential application as a redox mediator (charge relay) in dye-sensitized solar cell (DSSC). The NiHCF redox reactions were found fast and reversible not only when the system was studied as thin film exposed to an aqueous supporting electrolyte but also as bulk material (pasted powder) in solid state, i.e., in the absence of contact with external liquid electrolyte phase. Usefulness of NiHCF material was diagnosed using conventional electroanalytical approaches, solid-state voltammetric methodology, as well as the dynamic electrochemical impedance spectroscopy technique that permitted monitoring of impedance spectra under potentiodynamic conditions. The material was utilized in a mixed-valent state, i.e., as a mixture of K 4 Ni II [Fe II (CN) 6 ] and K 3 Ni II [Fe III (CN) 6 ] in which iron(II) and iron(III) sites were at the 1:1 ratio. Under such conditions, dynamics of electron-hopping between mixedvalent iron sites was maximized. Our DSSC utilized cisdithiocyanoatobis(4,4′-dicarboxylic acid-2,2′-bipyridine) ruthenium(II) dye (N3) adsorbed onto TiO 2 semiconductor and NiHCF as redox mediator. Although performance of our DSSC was not optimized in terms of the NiHCF film thickness and morphology, as well as lower photocurrents in comparison to those characteristic of the iodine/iodide based DSSC were obtained, our system yielded readily fairly high open-circuit photovoltages on the level of 800 mV. An important issue was that the formal potential of NiHCF was more positive relative to the potential of the iodide/triiodide couple while being still more negative than that equivalent to the ground state of the N3 dye. Thus, NiHCF mediator was able to regenerate the dye.

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Polynuclear nickel hexacyanoferrates: monitoring of film growth and hydrated counter-cation flux/storage during redox reactions

Cited by 186 publications

References 27 publications

Water Oxidation at Electrodes Modified with Earth‐Abundant Transition‐Metal Catalysts

Water Oxidation at Electrodes Modified with Earth‐Abundant Transition‐Metal Catalysts

Polypyrrole/copper hexacyanoferrate hybrid as redox mediator for glucose biosensors

Electrochemical characterization of Prussian blue type nickel hexacyanoferrate redox mediator for potential application as charge relay in dye-sensitized solar cells

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