Mediated electron transfer reactions between redox centers in Prussian blue and reactants in solution

Itaya, Kingo; Uchida, Isamu; Toshima, Shinobu

doi:10.1021/j100224a025

Cited by 63 publications

(24 citation statements)

References 3 publications

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“…This is a direct evidence for the participation of the cinder modifier on the formation of PB inside the matrix. Scheme 1 demonstrates the possible electron transfer channels in the PB lattice in conjunction with low spin Fe 3þ at 0.89 V [26,27]. The direct electron shuttle between low spin Fe 3þ ion from the carbon coordinated octahedral sites of the PB cubic lattice to N III O À 2 is expected to be the rate determining step (rds) for the overall oxidation reaction.…”

Section: Electrocatalytic Oxidation Of Nomentioning

confidence: 99%

Electrochemical Behavior of Stable Cinder/Prussian Blue Analogue and Its Mediated Nitrite Oxidation

Zen

Kumar

Chen³

2001

Electroanalysis

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Section: Electrocatalytic Oxidation Of Nomentioning

confidence: 99%

Electrochemical Behavior of Stable Cinder/Prussian Blue Analogue and Its Mediated Nitrite Oxidation

Zen

Kumar

Chen³

2001

Electroanalysis

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“…As can be seen in Figure 2, the voltammetric response of all the substrates under study shows the well-known iron hexacyano-ferrate electrochemistry in which four peaks can be clearly distinguished. 16,[18][19][20][21][22] These peaks correspond to electron transfer events that relate the three forms of the iron hexacyano-ferrate complex. …”

Section: Resultsmentioning

confidence: 99%

Voltammetric and Electrochemical Impedance Spectroscopy Study of Prussian Blue/Polyamidoamine Dendrimer Films on Optically Transparent Electrodes

Méndez

López‐Martínez

López-García

et al. 2016

J. Electrochem. Soc.

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Electrochromic Prussian Blue (PB) films were prepared on clean and dendrimer modified optically transparent electrodes (OTE). As expected, surface attached polyamidoamine (PAMAM) dendrimers, modified not only the chemical structure but also the electric properties of the interphase and therefore, exerted a clear influence on the electrochromic behavior of the PB films. The electrochromic efficiency of the modified substrate for instance, was clearly dependent on the size (Generation, G) of the surface confined dendrimer molecule, and the effects on this and other properties of the electrode could be associated to ion transport of charge compensating species (K + , Cl − ) as well as effects on electrochemical charge transfer (resistance to the electronic transfer) of the electrochromic films. Using Electrochemical Impedance Spectroscopy (EIS) experiments of the dendrimer modified interphases under study, fitted values of the electric components of an equivalent circuit were obtained and used to gain understanding of the dendrimer induced effects of the electrochromic response of PB films. This study is expected to contribute to the understanding of this type of interphases so that the design and construction of electrochromic films in which ionic as well as electronic transport, can be properly tailored and employed. Prussian Blue (PB) is a coordination compound characterized by electrochromic, photosensitive and electrocatalytic properties 1-4 that have allowed its use for the development of sensors, 5-6 energy storage technologies, 7 corrosion inhibitors, 8 dyes 9 and electrochromic devices. [10][11] In the case of electrochromic devices, polymeric redox active films characterized by a reversible color change due to an oxidation/reduction process caused by the imposition of an electric current are deposited on the surface of transparent conductive electrodes. Therefore, the construction of efficient electrochromic materials is an area of current research, and in this context, PB containing films have been prepared employing polymeric matrixes such as polyaniline, 12 Nafion, 13 poly(3-methylthiophene) 14 and PAMAM dendrimers (DMs). 15,16 In this regard, PAMAM hyper-ramified dendritic materials are particularly interesting due to their molecular architecture, which significantly improves the physical and chemical properties of the composite when compared to traditional linear polymers. 15,16 In this work, the study of the influence of PAMAM DMs of different generations on the electrochemical properties of PB films is presented. The results show that only the DMs of lower generation (G0.5) have the capability of increasing the electrochromic efficiency of PB films when compared to surfaces constructed in the absence and in the presence of higher generation DMs. The water employed in all the experiments reported in this work was purified with a Milli-Q system reaching a resistivity higher than * Electrochemical Society Member.z E-mail: lgodinez@cideteq.mx 18 M · cm −1 . N 2 (4.8 grade) was bubbled for 15 min before...

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“…27 Among these applications, most reports are about electrocatalytic studies of PB and its analogue CME. The catalytic reduction of molecular oxygen, hydrogen peroxide, 28 31 hydrazine, 32 and the catalytic oxidation of ascorbic acid, 33 dopamine, 34 hydrogen peroxide, 35 thiosulfate, 36 hydrazine, 37 reduced nicotinamide adenine dinucleotide, 38 As III , 39 thiocyanate 40 at PB and its analogue CME have been reported. Considering the wide scope of electrochemical studies and their possible exploitation, attention has been currently paid to the preparation of a number of analogues of PB as revealed by the growing number of references on this subject.…”

Section: Introductionmentioning

confidence: 98%

“…21 Among these materials, transition metal hexacyanometallates are very interesting due to their electrochemical properties. Since the pioneering work of Neff on Prussian blue (PB) modified electrodes, 22 the importance of which may be traced to the simultaneous presence of two sets of redox peaks representing one high-spin and one low-spin electronic transition of iron in the PB molecule 23 (separated by 0.650 V in KCl supporting electrolyte), the deposition of PB and its analogues on conducting substrate electrodes has been studied and found a wide range of applications to electrochromic devices, 9 electrochemical power sources, 24 photocurrent response studies, 11 ionselective electrodes, 25 site-selective electrocatalysis making use of either of the two redox centers as electrocatalytic site 26 and biosensors. 27 Among these applications, most reports are about electrocatalytic studies of PB and its analogue CME.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Properties of Manganese Hexacyanoferrate Modified Glassy Carbon Electrode

Liu¹,

Yan²,

Shen³

2005

Chin. J. Chem.

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A thin film of manganese hexacyanoferrate (MnHCF) was electrochemically formed on a glassy carbon (GC) electrode to prepare a chemically modified electrode (CME). The mechanism of film formation of MnHCF and its growth process were investigated in detail by cyclic voltammetry. The results show that the stoichiometric composition of MnHCF is Mn III Fe III (CN) 6 , an analogue of prussian yellow. There exist three clear-cut stages in the whole modification process and the last stage is indispensable to the fabrication of homogenized, stable MnHCF film and must last for an appropriate time. The surface morphology of MnHCF/GC electrode was characterized by scanning electron microscopy (SEM), which further verified the effective deposition of MnHCF film on GC. The kinetic constants of MnHCF/GC electrode process were also evaluated. The resulting MnHCF film modified electrode presented good stability and high electrocatalytic activity toward the oxidation of H 2 O 2 , indicating that MnHCF film possesses function of catalase and can be expected for analytical purposes.

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Mediated electron transfer reactions between redox centers in Prussian blue and reactants in solution

Cited by 63 publications

References 3 publications

Electrochemical Behavior of Stable Cinder/Prussian Blue Analogue and Its Mediated Nitrite Oxidation

Electrochemical Behavior of Stable Cinder/Prussian Blue Analogue and Its Mediated Nitrite Oxidation

Voltammetric and Electrochemical Impedance Spectroscopy Study of Prussian Blue/Polyamidoamine Dendrimer Films on Optically Transparent Electrodes

Preparation and Electrochemical Properties of Manganese Hexacyanoferrate Modified Glassy Carbon Electrode

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