An electrochemical nano-sensor for determination of hydrazine using modified electrode by La2O3–Co3O4 nanohybrids and ionic liquid

Nazari, Monireh; Asadollahzadeh, Hamideh; Shahidi, Minoo; Rastakhiz, Nahid; Mohammadi, Sayed Zia

doi:10.1007/s10854-021-06983-3

Cited by 5 publications

(1 citation statement)

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“…In this context, it is of interest to develop catalysts that promote this oxidation and are environmentally friendly. In this respect, ionic liquids stand out for their low vapor pressure and because they are recoverable [3][4][5][6] and they have been used for modifying electrodes showing interesting catalytic properties [7,8]. In the oxidation of hydrazine, the adsorption/desorption of analytes and intermediates plays an important role because of the multistage electronic processes involving proton transfer [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Metal of a Metallic Ionic Liquid (-butyl-methylimidazolium tetrachloroferrate) on the Oxidation of Hydrazine

Brockmann,

Navarro,

Ibarra

et al. 2024

Catalysts

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This work investigates the electrocatalytic properties of carbon paste electrodes (CPEs) modified with ionic liquids (IL) and metallic ionic liquid (ILFe) for the hydrazine oxidation reaction (HzOR). The results indicate that ILFe significantly enhances the catalytic activity of the electrode, exhibiting catalysis towards hydrazine oxidation, reducing overpotential, and increasing reaction current. It is determined that the HzOR on the MWCNT/MO/ILFe electrode involves the transfer of four electrons, with high selectivity for nitrogen formation. Additionally, ILFe is observed to improve the wettability of the electrode surface, increasing its capacitance and reaction efficiency. This study highlights the advantages of ILFe-modified CPEs in terms of simplicity, cost-effectiveness, and improved performance for electrochemical applications, demonstrating how the ionic liquid catalyzes hydrazine oxidation despite its lower conductivity.

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