Nix–Fe(1−x)Fe(CN)6 hybrid thin films electrodeposited on glassy carbon: Effect of tuning of redox potentials on the electrocatalysis of hydrogen peroxide

Kumar, Alam Venugopal Narendra; Harish, S.; Joseph, James; Phani, K. L. N.

doi:10.1016/j.jelechem.2011.05.006

Cited by 20 publications

(7 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 5A shows two well‐defined quasi‐reversible redox couples at

E_{1}^{0'}

=−32 mV and

E_{2}^{0'}

= 340 mV, respectively. Signals 1 and 2 could be attributed to the Ni 2+ |Ni 3+ and Co 2+ |Co 3+ redox couples of the outer sphere coordination, [18,27] and to the [Fe II (CN) 5 (NO)] 2− |[Fe III (CN) 5 (NO)] 1− redox couple of nitroprusside anion [28,34] . The equations for both redox couples may be represented as follows:…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

et al. 2022

View full text Add to dashboard Cite

Coordination polymers have received considerable attention in recent years as electrocatalytic materials for the construction of electrochemical sensors. This is due to their high sensitivity and selectivity towards the electrochemical detection of various molecules, particularly pollutants and metabolites, which commonly appear in low concentrations and in complex matrices. In this work, the construction of an electrochemical sensor was performed for the detection of phenylhydrazine, which is a strong pollutant, based on a mixed Ni 2 + Co 2 + transition metal nitroprusside (NiCoNP). NiCoNP was synthesized by chemical coprecipitation, and characterized using Xray diffraction, TGA, and IR and XPS spectroscopies. Its structural characterization indicates that the material was a solid solution, with a cubic Fm � 3m structure and a stoichiometry of Ni 0.59 Co 0.41 [Fe(CN) 5 NO] ⋅ 5H 2 O. The material showed quasireversible electron transfer behavior associated to the charge transfer between the metallic centers of the nitroprusside and the concomitant intercalation of K + ions within the crystal lattice. The sensor based on NiCoNP exhibited a high electrocatalytic activity for the electrooxidation of phenylhydrazine without kinetic limitations, and a wide large linear range (0.5-12 mM), high sensitivity (86.87 μA ⋅ cm À 2 /mM), and LOD of 266 μM. Such device showed a rapid and selective response towards phenylhydrazine. In conclusion, the NiCoNP under study showed a promising electrocatalytic activity for the development of electrochemical sensors.

show abstract

“…Figure 5A shows two well‐defined quasi‐reversible redox couples at

E_{1}^{0'}

=−32 mV and

E_{2}^{0'}

Section: Resultsmentioning

confidence: 99%

“…The two metals occupy randomly equivalent crystalline sites. The ratio of metals in the outer coordination sphere should determine the accessible electrochemical applications, due to a fine tuning of its physical and chemical properties [16–22] …”

Section: Introductionmentioning

confidence: 99%

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

et al. 2022

View full text Add to dashboard Cite

show abstract

“…By the appearance of a single redox peak for the Zn–NiHCF hybrid films electrochemically and from the FCC structure of chemically formed Zn–NiHCF hybrid (Figure S4 Supporting Information), it is reasonable to believe that the structure of electrochemically formed hybrid also might possess FCC structure. We have earlier reported the tuning of redox potentials of the surface ferro/ferricyanide redox couple by changing the ratio of iron/nickel ions in the modification mixture . It is worth mentioning that both FeHCF and NiHCF are face-centered cubic structures and can form hybrids in all ratios .…”

Section: Resultsmentioning

confidence: 99%

“…The formal redox potentials of MHCF mainly depend on the metal atom coordinated to −NC and its composition in the crystal structure. Attempts have been made to tune the formal redox potential of Prussian blue (PB) by incorporating nickel ions in PB lattice by both chemical and electrochemical methods. , Similar electrochemical characteristics were also observed in NiHCF films prepared in different mole fractions of Pd 2+ and Ni 2+ ions in the modifying mixture . Dostel et al have demonstrated the lattice reconstruction of PB films on cycling the modified film in Cd ion solution .…”

Section: Introductionmentioning

confidence: 94%

New Zn–NiHCF Hybrid Electrochemically Formed on Glassy Carbon: Observation of Thin Layer Diffusion during Electro-Oxidation of Hydrazine

Kumar

Joseph

2014

J. Phys. Chem. C

Self Cite

View full text Add to dashboard Cite

Electrochemical modification of electrodes with thin films of metal hexacyanoferrates (MHCF) enhances the interfacial properties such as electrocatalysis, electrochromism, and ion transport properties. Attempts to prepare hybrids of metal hexacyanoferrates along with Au nanoparticles or by substituting the structure of MHCF with another metal ion were reported from various research groups including us. In this work, we report modification of glassy carbon with a new single phase hybrid Zn−NiHCF (hexacyanoferrate prepared in the presence of Zn 2+ and Ni 2+ ) electrochemically for the first time. The hybrid film was characterized by a single well reversible redox process centered at 450 mV. The effect of the zinc and nickel ions in the deposition bath on the effectiveness of modification was studied in detail. The modified hybrid films were characterized by voltammetry, chronoamperometry, field emission scanning electron microscopy, X-ray diffractometry, etc. The modified films were used for the electro-oxidation of hydrazine. The deviation from the expected behavior of the hybrid porous films provides evidence for the thin layer mass transport prevailing in the film. Thin layer diffusion behavior in MHCF films for the electrocatalytic oxidation of hydrazine is reported for the first time. The electro-oxidation of hydrazine appears to take place on the glassy carbon (GC) surface. The need for caution in analyzing the electrocatalytic properties of MHCF interfaces is reiterated.

show abstract

“…79 Bimetallic PBA.-Future developments in the field shall be carried out by synthesizing novel PBA having two metals in the outercoordination sphere. Some current examples are Ni-Fe, 80 Co-Ni, 81 Cu-Ni, 53 Cu-Zn, 82 Cu-Co, 83 Zn-Ni, 84 Mn-Fe, 85 or Co-Mn. 55,86 Bimetallic PBA have an excellent electrochemical behavior due to their enhanced stability in alkaline solution and distinctive cation permeability.…”

Section: F E IIImentioning

confidence: 99%

Review—Prussian Blue and Its Analogs as Appealing Materials for Electrochemical Sensing and Biosensing

Matos-Peralta

Antuch

2019

J. Electrochem. Soc.

View full text Add to dashboard Cite

Prussian blue and its analogs (PBA) form an attractive family of materials for sensing and biosensing applications. Due to their open framework structure their electrochemical behavior is closely linked to the intercalation of alkaline ions. Moreover, these compounds show a clear peroxidase activity that makes them excellent transducers in biosensors based on H 2 O 2 quantification. In this review, we present in a progressive manner an overview of the structure, composition, and synthesis of PBA. Subsequently we approach the current trends in the use of PBA in the field of electrochemical sensors, providing a critical discussion on their electrochemical behavior and the electrocatalytic activity toward H 2 O 2 electrooxidation and electroreduction, along with the determination of toxic, hazardous compounds and drugs.

show abstract

Nix–Fe(1−x)Fe(CN)6 hybrid thin films electrodeposited on glassy carbon: Effect of tuning of redox potentials on the electrocatalysis of hydrogen peroxide

Cited by 20 publications

References 29 publications

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

New Zn–NiHCF Hybrid Electrochemically Formed on Glassy Carbon: Observation of Thin Layer Diffusion during Electro-Oxidation of Hydrazine

Review—Prussian Blue and Its Analogs as Appealing Materials for Electrochemical Sensing and Biosensing

Contact Info

Product

Resources

About

Nix–Fe(1−x)Fe(CN)6 hybrid thin films electrodeposited on glassy carbon: Effect of tuning of redox potentials on the electrocatalysis of hydrogen peroxide

Cited by 20 publications

References 29 publications

Mixed Ni2+Co2+ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

Mixed Ni2+Co2+ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

New Zn–NiHCF Hybrid Electrochemically Formed on Glassy Carbon: Observation of Thin Layer Diffusion during Electro-Oxidation of Hydrazine

Review—Prussian Blue and Its Analogs as Appealing Materials for Electrochemical Sensing and Biosensing

Contact Info

Product

Resources

About

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine

Mixed Ni²⁺Co²⁺ Transition Metal Nitroprusside: Determination of Its Electrochemical Behavior and Electrocatalytic Activity towards the Oxidation of Phenylhydrazine