Electrochemical behavior of iodide at a nickel pentacyanonitrosylferrate film modified aluminum electrode prepared by an electroless procedure

Razmi, Habib; Sadr, Moayad Hossaini; Habibi-A, B.

doi:10.1016/j.jelechem.2004.07.032

Cited by 18 publications

(12 citation statements)

References 21 publications

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“…35 The NiPCNF|Al electrode was used for the electrooxidation of ascorbic acid, 36 thiosulfate, 37 hydrazine, 38 dopamine, 39 and iodide. 40 The electroless preparation of PdHCF film at the aluminum electrode was reported in the literature. 41 We used the PdHCF|Al electrode for the electrocatalytic oxidation of dopamine.…”

Section: Introductionmentioning

confidence: 99%

Application of a Palladium Hexacyanoferrate Film-Modified Aluminum Electrode to Electrocatalytic Oxidation of Hydrazine

2005

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A palladium hexacyanoferrate (PdHCF) film as an electrocatalytic material was obtained at an aluminum (Al) electrode by a simple electroless dipping method. The modified Al electrode demonstrated a well-behaved redox couple due to the redox reaction of the PdHCF film. The PdHCF film showed an excellent electrocatalytic activity toward the oxidation of hydrazine. The electrocatalytic oxidation of hydrazine was studied by cyclic voltammetry and rotating disk electrode voltammetry techniques. A calibration graph obtained for the hydrazine consisted of two segments (localized at concentration ranges 0.39 -10 and 20 -75 mM). The rate constant k and transfer coefficient α for the catalytic reaction and the diffusion coefficient of hydrazine in the solution D, were found to be 3.11 × 10 3 M -1 s -1 , 0.52 and 8.03 × 10 -6 cm 2 s -1 respectively. The modified electrode was used to amperometric determination of hydrazine in photographic developer. The interference of ascorbic acid and thiosulfate were investigated and greatly reduced using a thin film of Nafion on the modified electrode. The modified electrode indicated reproducible behavior and a high level of stability during electrochemical experiments, making it particularly suitable for analytical purposes.

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Section: Introductionmentioning

confidence: 99%

Application of a Palladium Hexacyanoferrate Film-Modified Aluminum Electrode to Electrocatalytic Oxidation of Hydrazine

2005

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“…According to the literature, the PCNF complexed to metals (MPCNF) has been used for electrocatalytic oxidation of various compounds such as: sulfite [1], thiosulfate [12], hydrazine [13], ascorbic acid [14], dopamine [15], iodine [16] and nitrite [17]. However, studies of CMEs with MPCNF have been conducted using carbon composites electrodes (CCE) [1,18,19] and films on various substrates: glassy carbon (GC) [11][12][13][14]20], aluminum [3,16,21], mercury [22] and platinum [23], while the latter two substrates are not used very often.…”

Section: à2mentioning

confidence: 99%

“…However, studies of CMEs with MPCNF have been conducted using carbon composites electrodes (CCE) [1,18,19] and films on various substrates: glassy carbon (GC) [11][12][13][14]20], aluminum [3,16,21], mercury [22] and platinum [23], while the latter two substrates are not used very often.…”

Section: à2mentioning

confidence: 99%

“…In the first step the metal is deposited on the electrode surface by electrodeposition or electroless deposition process and in the second step the metal deposited on the electrode surface is derivatized with a solution of PCNF in acid media [16,20]. The NiPCNF film has been studied for several determinations of compounds of interest [15,16] and the aluminum electrode is the most commonly used substrate for the deposition of this film. The process involves two steps with chemical reactions and without the application of potential, where the nickel is first deposited on aluminum and then this deposit is modified with PCNF.…”

Section: à2mentioning

confidence: 99%

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Electrochemical Behavior of a Glassy Carbon Electrode Chemically Modified with Nickel Pentacyanonitrosylferrate in Presence of Sulfur Compounds

2011

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The glassy carbon electrode was modified with a nickel pentacyanonitrosylferrate film by electrodeposition of Ni and subsequent derivatization with NaPCNF. The film was characterized by XPS and electrochemical methods. Cyclic voltammetry of the NiPCNF onto the GC shows a redox couple (Fe III /Fe II ) with E8' of 538 mV (I pa /I pc around 1) and DE p of 93 mV in 0.5 mol L À1 KNO 3 , with a diffusion-controlled process. There was a decrease of anodic peak currents of the film in the presence of sulfide and 2-propanethiol due to a precipitation reaction on the film surface by nucleophilic attack.

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“…Only the latter can be used under high temperature conditions. Metal pentacyanonitrosylferrate (MPCNF) as an inorganic compound have been used in the form of a thin layer on electrodes; in these studies different transition metals such as: Cd 17 , Co 18 , Ni 19 , Pd 20 and Zn 21 have been used. However, to the best of our knowledge, there is no report on preparation of ZnPCNF nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical method for rapid synthesis of Zinc Pentacyanonitrosylferrate Nanotubes

Bargeshadi¹,

Sabzi²

2014

10.5267/j.ccl

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In this paper, a rapid and simple approach was developed for the preparation of zinc pentacyanonitrosylferrate nanotubes (ZnPCNF NTs) within the cylindrical pores of anodic aluminum oxide (AAO) template by electrochemical method. The AAO was fabricated in two steps anodizing from aluminum foil. The first anodization of aluminum foil was performed in 0.2 mol L -1 H 2 C 2 O 4 followed by removal of the formed porous oxide film by a solution of 6 wt% of phosphoric acid. The second anodization step was then performed using the same conditions as the previous step. Scanning electron microscope (SEM) and X-ray diffraction (XRD) method were employed to characterize the resulting highly oriented uniform hollow tube array which its diameter was in the range of 25-75 nm depending on the applied voltage and the length of nanotubes was equal to the thickness of AAO which was about 2 m. The growth properties of the ZnPCNF NTs array film can be achieved by controlling the structure of the template and applied potential across the cell.

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Electrochemical behavior of iodide at a nickel pentacyanonitrosylferrate film modified aluminum electrode prepared by an electroless procedure

Cited by 18 publications

References 21 publications

Application of a Palladium Hexacyanoferrate Film-Modified Aluminum Electrode to Electrocatalytic Oxidation of Hydrazine

Application of a Palladium Hexacyanoferrate Film-Modified Aluminum Electrode to Electrocatalytic Oxidation of Hydrazine

Electrochemical Behavior of a Glassy Carbon Electrode Chemically Modified with Nickel Pentacyanonitrosylferrate in Presence of Sulfur Compounds

Electrochemical method for rapid synthesis of Zinc Pentacyanonitrosylferrate Nanotubes

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