Electrochemical bichromic behaviour of ferric ferrocyanide (Prussian Blue) in thin film redox processes

Kellawi, Hassan; Rosseinsky, David R.

doi:10.1016/0022-0728(82)87089-7

Cited by 60 publications

(45 citation statements)

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“…Although it has been studied for 270 years, it is still a research topic of high interest because of its numerous interesting properties as electrochromism, ion exchanger, and photomagnetic properties which allow applications in electrocatalysis, electrochromic or electronic devices, and batteries. PB films can be generated by chemical [1][2] or electrochemical [3][4] ways, often from an aqueous solution of a FeCl 3 and K 3 Fe(CN) 6 mixture. PB was deposited at an electrode surface for the first time by V.D.…”

Section: -Introductionmentioning

confidence: 99%

Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Kim

Gabrielli

Perrot

et al. 2012

Electrochimica Acta

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Section: -Introductionmentioning

confidence: 99%

Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Kim

Gabrielli

Perrot

et al. 2012

Electrochimica Acta

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“…[27][28][29] The above crystalline structure corresponds to the freshly deposited PB film following the electrochemical methodology described by Itaya et al 22 and it is known as insoluble. The insoluble PB is electrochemically converted into the soluble PB by means of successive voltammetric cycles between the PB and ES forms 30,31 until a stable electrochemical response is achieved. 32 The soluble PB has been described as similar to the insoluble PB 3D structure.…”

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confidence: 99%

Electronic Perspective on the Electrochemistry of Prussian Blue Films

Agrisuelas

Bueno

Ferreira

et al. 2009

J. Electrochem. Soc.

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The derivative of the voltabsommetric scans, together with previous nano-electrogravimetric and X-ray diffraction results, allow different electrochemical processes to be distinguished during the Prussian blue ͑PB͒ voltammetric scan. Potassium, proton, and hydrated proton counterions involved in PB electrochemistry are related here to the electrochemical reactions of specific Fe sites. Potassium counterions show two different sites for their insertion: one located in the crystalline framework and another in ferrocyanide vacancies. From the monitoring of electroactive Fe sites, the covalent-exchange model is suggested as one of the first approaches to explain the origin of the PB magnetic ordering observed at room temperature during voltammetric scanning. Systems that undergo reversible and controlled changes of their properties offer appealing perspectives for the fabrication of electronic switch devices. Thus, Prussian blue ͑PB͒-like materials have raised intense interest because of their electrochromic, ionexchange, ion-sensing, electrocatalytic, or photomagnetic properties, 1-5 because the PB Everitt's salt ͑ES͒ voltammetric scan is accompanied by reversible changes in these physicochemical properties.6-10 Likewise, they also display a wide range of important magnetic ͑e.g., room temperature magnetic ordering͒ and magnetooptical ͑e.g., ferromagnetism, photoinduced ͑de͒-magnetization͒ properties. [11][12][13][14] In particular, the PB electromagnetic properties can also be tailored by external conditions, such as the magnetic field, 15-17 light, 15,18,19 and by electrochemical methods. 18,[20][21][22][23][24] X-ray studies showed that the PB three-dimensional ͑3D͒ structure is face-centered cubic 25 with a general formula equal to Fe 4 ͓Fe͑CN͒ 6 ͔ 3 ·mH 2 O. Trivalent and divalent iron ions are in highand low-spin sites, Fe͑III͒ high-spin and Fe͑II͒ low-spin , respectively. 26Enclosed in this structure, high-and low-spin sites are both octahedral and surrounded by -NC and -CN units, respectively. Thus, the PB lattice is composed of repetitive units of Fe low-spin -CN-Fe high-spin in the three spatial directions. Nonetheless, 1 4 of low-spin Fe͑II͒ sites are missing and occupied by water molecules coordinated to Fe͑III͒ high-spin ions. The PB structure is completed with water molecules occupying interstitial positions. 27-29The above crystalline structure corresponds to the freshly deposited PB film following the electrochemical methodology described by Itaya et al. 22 and it is known as insoluble. The insoluble PB is electrochemically converted into the soluble PB by means of successive voltammetric cycles between the PB and ES forms 30,31 until a stable electrochemical response is achieved. 32 The soluble PB has been described as similar to the insoluble PB 3D structure. 33,34 Repetitive structural units of Fe low-spin -CN-Fe high-spin also compose its rigid framework, where 1 4 of the low-spin sites are missing. The position of the trivalent iron ions can be drawn as Fe͑II͒ low-spin -CN-Fe͑III͒ high-spin a...

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“…The Ag-driven PB deposition was hereby markedly accelerated, a subject of ongoing research. The Ag spot method was foreseen in an early study [1,10].…”

Section: Discussionmentioning

confidence: 99%

Simplest Prussian-blue deposition from ferric ferricyanide solution by a reducing Ag spot put onto an ITO substrate

Barton

Kellawi

Marken

et al. 2012

J Solid State Electrochem

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Electrochemical bichromic behaviour of ferric ferrocyanide (Prussian Blue) in thin film redox processes

Cited by 60 publications

References 3 publications

Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Electronic Perspective on the Electrochemistry of Prussian Blue Films

Simplest Prussian-blue deposition from ferric ferricyanide solution by a reducing Ag spot put onto an ITO substrate

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