Electrocatalytic oxidation of some carbohydrates by poly(1-naphthylamine)/nickel modified carbon paste electrode

Ojani, Reza; Raoof, Jahan Bakhsh; Salmany-Afagh, Parisa

doi:10.1016/j.jelechem.2004.03.032

Cited by 84 publications

(40 citation statements)

References 30 publications

(35 reference statements)

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“…[1][2] The ability of the conductive/electroactive polymers such as polypyrrole, poly(1-naphthylamine), poly(ortho-toluidine) etc., for the fabrication of the modified electrodes prepared by an electropolymerization procedure have been demonstrated. [3][4][5][6][7] On the other hand, nitrite ion (NO 2 -) has been reported as a human health -hazard which extensively exists in the environment and usually uses in food preservation against food poisoning microorganism such as clostridium botulinum. 8 The surplus of nitrite would cause carcinogens because it is an essential precursor in the formation of Nnitrosamines.…”

Section: Introductionmentioning

confidence: 99%

A Simple and Efficient Electrochemical Sensor for Electrocatalytic Reduction of Nitrite Based on Poly(4‐aminoacetanilide) Film Using Carbon Paste Electrode

Ojani

Raoof

Rahemi

2011

J Chinese Chemical Soc

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In this study, the electrochemical reduction of nitrite was investigated on poly(4-aminoacetanilide) (PPAA) forming by cyclic voltammetry at the surface of carbon paste electrode. The electrochemical properties of the modified electrode have been studied by cyclic voltammetry and double potential step chronoamperometry. Results showed that in the optimum condition (pH = 0.00) the reduction of nitrite occurred at a potential about 667 mV more positive than that unmodified carbon paste electrode. This amount of electrocatalytic ability is high compared with other electrocatalysts. Using a chronoamperometric method, the catalytic rate constant (k) was calculated 8.4 × 10 4 cm 3 mol -1 s -1 . Also, the electrocatalytic reduction peak currents was found to be linear with the nitrite concentration in the ranges of 5 × 10 -4 M to 2.5 × 10 -2 M and 2 × 10 -5 M to 7 × 10 -3 M with detection limits (2s) were determined as 4.5 × 10 -4 M and 1 × 10 -5 M by cyclic voltammetry (CV) and hydrodynamic amperometry methods respectively. Recovery experiments exhibit the satisfactory results.

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Section: Introductionmentioning

confidence: 99%

A Simple and Efficient Electrochemical Sensor for Electrocatalytic Reduction of Nitrite Based on Poly(4‐aminoacetanilide) Film Using Carbon Paste Electrode

Ojani

Raoof

Rahemi

2011

J Chinese Chemical Soc

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“…Because of this, metal particles dispersed in thin organic films have been recognized as an effective electrocatalyst with high activities for various electrode reactions [17,18]. Recently, modified electrodes with metallic microparticles electrodeposited into the polymeric matrix have been used for the oxidation of carbohydrates [19,21] and amino acids [22]. These studies showed that metal-polymer electrodes are easy to prepare, stable for long time periods with good detection limits and wide linear range responses.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of Some Carbohydrates by Nickel/Poly(o‐Aminophenol) Modified Carbon Paste Electrode

2008

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This study investigates the electrocatalytic oxidation of glucose and some other carbohydrates on nickel/poly(oaminophenol) modified carbon paste electrode as an enzyme free electrode in alkaline solution. Poly(o-aminophenol) was prepared by electropolymerization using a carbon paste electrode bulk modified with o-aminophenol and continuous cyclic voltammetry in HClO 4 solution. Then Ni(II) ions were incorporated to electrode by immersion of the polymeric modified electrode having amine group in 1 M Ni(II) ion solution. Cyclic voltammetric and chronoamperometric experiments were used for the electrochemical study of this modified electrode; a good redox behavior of Ni(OH) 2 /NiOOH couple at the surface of electrode can be observed, the capability of this modified electrode for catalytic oxidation of glucose and other carbohydrates was demonstrated. The amount of a and surface coverage (G*) of the redox species and catalytic chemical reaction rate constant (k) for each carbohydrate were calculated. Also, the electrocatalytic oxidation peak currents of all tested carbohydrates exhibit a good linear dependence on concentration and their quantification can be done easily.

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“…After incorporation into carbon paste electrodes (CPEs), these materials were found to be efficient catalysts for the reduction of ClO 3 -and BrO 3 -species, the electrocatalytic properties of 4,4′-bipyridinium units covalently attached to MCM-41 silica walls were also described with respect to the oxidation of 1,4-dihydrobenzoquinone [13]. In the field of electrocatalysis, we have demonstrated the suitability of some modified electrodes for electrocatalytic determination of ascorbic acid [25], hydrazine [26], Lcysteic acid [27], nitrite [28,29], and carbohydrates [30]. In this work, we used aminated MCM-41 for encapsulation of ferricyanide and used this material for electrocatalytic reduction of H 2 O 2 .…”

Section: Introductionmentioning

confidence: 92%

Ferricyanide immobilized within organically modified MCM-41; application for electrocatalytic reduction of hydrogen peroxide

Ojani

Raoof

Fathi

2008

J Solid State Electrochem

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Carbon paste electrode modified with aminated Mobil Catalytic Material Number 41 (MCM-41) was prepared and used for immobilization of K 3 [Fe(CN) 6 ] in acidic medium, and then electrochemical behavior of modified electrode containing ferricyanide was studied in detail, including pH-dependence and scan rate effect. Cyclic voltammetry studies showed that the electrode reaction is a surface-controlled process at the scan rate range from 5 to 60 mV s −1 . Also, the electrocatalytic behavior of modified electrode toward the reduction of H 2 O 2 is reported and the effect of pH on catalytic peak current was discussed. According to experimental results, with increasing solution pH, the catalytic effect of this modified electrode is decreased. Catalytic reduction current of H 2 O 2 increases linearly with its concentration. It has been demonstrated that ferricyanide immobilized on the aminated MCM-41 is a stable catalyst for the electrocatalytic reduction of H 2 O 2 .

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Electrocatalytic oxidation of some carbohydrates by poly(1-naphthylamine)/nickel modified carbon paste electrode

Cited by 84 publications

References 30 publications

A Simple and Efficient Electrochemical Sensor for Electrocatalytic Reduction of Nitrite Based on Poly(4‐aminoacetanilide) Film Using Carbon Paste Electrode

A Simple and Efficient Electrochemical Sensor for Electrocatalytic Reduction of Nitrite Based on Poly(4‐aminoacetanilide) Film Using Carbon Paste Electrode

Electrocatalytic Oxidation of Some Carbohydrates by Nickel/Poly(o‐Aminophenol) Modified Carbon Paste Electrode

Ferricyanide immobilized within organically modified MCM-41; application for electrocatalytic reduction of hydrogen peroxide

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