Electrochemical behavior of Ni(II) incorporated in zeolite Y-modified carbon electrode: application for electrocatalytic oxidation of methanol in alkaline solution

Ojani, Reza; Raoof, Jahan Bakhsh; Fathi, Shahla; Alami-Valikchali, Sharife

doi:10.1007/s10008-010-1200-z

Cited by 40 publications

(12 citation statements)

References 32 publications

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“…It is unclear how much Ni inside alumina structure affects the electrochemical response of nickel-doped alumina. According to Ojani et al [45], who investigated Nimodified zeolite Y, the presence of Ni ions inside zeolite cages beside Ni ions present on the surface of the zeolite was essential for good electrochemical activity of NiY. It was proposed that the methanol oxidation takes place on the oxy-hydroxide species formed on the surface of the electrode, while nickel species incorporated in zeolite act as an electron relay to the Ni(OH) 2 /NiOOH redox system.…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function

et al. 2019

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Alumina powders, pure and doped with nickel, were synthetized by sol-gel method and calcined at 500, 900 and 1100 o C in order to obtain mesoporous structures with a high specific surface area, well adapTab. to catalytic application. The characterization of samples was performed by XRD, EPR spectroscopy and electrochemical impedance spectroscopy (EIS). XRD analysis showed that the addition of Ni 2+ , as well as the annealing temperature, affects the structural properties of the obtained composites. EPR analysis revealed the traces of Fe 3+ impurities, the presence of oxy defects in alumina and Ni 2+ in tetrahedral position for samples calcined at 1100 o C. The impedance of the Nafion/alumina modified GCE depended on combined effect of porous structure and surface properties of alumina samples. The electrochemical behavior of a glassy carbon electrode modified with Ni (II)-doped aluminas was studied in 0.5 M NaOH solution, with and without methanol. The electrochemical activity of nickel-doped alumina composites was dictated by the amount of present NiO impurity.

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Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function

et al. 2019

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“…This shows that when the modified electrode was immersed in the supporting electrolyte solution, an ion exchange process was done between Co(II) cations in the zeolite framework and solution Na þ cations [26,27]. By comparison of the obtained results and the records reported to the electrode modified with Ni(II) [28,29], the observed redox behavior for Co(II)-NClin/CPE is related to Co(OH)2/CoOOH redox couple according to the following reactions:…”

Section: Effect Of Modificationmentioning

confidence: 84%

Considerable decrease in overvoltage of electro-catalytic oxidation of methanol by modification of carbon paste electrode with Cobalt(II)-clinoptilolite nanoparticles

Alidusty

Nezamzadeh‐Ejhieh

2016

International Journal of Hydrogen Energy

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“…Considering hydroxide ion oxidation on 13XPt it must be pointed out that zeolites have little or no affinity for anionic species due to negative charge of zeolites framework [33]. However, hydroxide ions can diffuse into zeolite which was proved by Ojani et al [34] They investigated Ni(II) incorporated in zeolite. The current value due to Ni(OH) 2 /NiOOH redox couple was very low, but during cycling it increased, which can be attributed to diffusion of hydroxide ion into zeolite and more conversion of Ni 2+ to Ni(OH) 2 species couple.…”

Section: Zeolite-modified Electrodementioning

confidence: 99%

Oxidation of hydroxide ions at platinum modified zeolite electrode

Mudrinić

Mojović

Rabi-Stanković

et al. 2012

Hem Ind

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NaX zeolite was modified by platinum via impregnation/thermal decomposition technique, using Pt(II)-acetylacetonate in acetone as an impregnating solution. The samples were characterized by scanning electron microscopy (SEM) and cyclic voltammetry methods. The mixture of modified zeolite and 10 wt % of carbon black, in a form of thin layer, was pasted to a glassy carbon surface. With this mixture as the electrode material hydroxide ions oxidation was studied by cyclic voltammetry. The response of modified zeolite electrodes was compared with bare platinum electrode and platinum electrode covered with Nafion film

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Electrochemical behavior of Ni(II) incorporated in zeolite Y-modified carbon electrode: application for electrocatalytic oxidation of methanol in alkaline solution

Cited by 40 publications

References 32 publications

Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function

Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function

Considerable decrease in overvoltage of electro-catalytic oxidation of methanol by modification of carbon paste electrode with Cobalt(II)-clinoptilolite nanoparticles

Oxidation of hydroxide ions at platinum modified zeolite electrode

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