Electrochemical determination of ethanol on carbon paste electrode chemically modified with [N,N′-cis-1,2-cyclohexylene bis (salicylideneaminate)] nickel(II) Schiff base complex

Lima, Guilherme Vieira; Mello, Lucas dos Santos; Dockal, Edward R.; Oliveira, Marcelo Firmino de

doi:10.1016/j.microc.2022.107209

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…The noticed broad redox peaks on account of NiO NPs/TiO 2 NTs-N 2 catalyst deposited at 30 min attributed to the occurrence of the Ni 2+ /Ni 3+ redox-reaction in the surface film. [61] The assessed E value (E ffi 0.238 V) for the Ni 2+ /Ni 3+ redox couple is on account of NiO NPs/TiO 2 NTs-N 2 . Similar redox peaks were additionally seen, as reported by authors.…”

Section: Electrochemical Characteristicsmentioning

confidence: 99%

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes

Jamil

Awad

Al-Maydama

et al. 2022

Applied Organom Chemis

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In this work, TiO2 nanotubes were synthesized electrochemically by anodization of pure Ti sheet in 0.5% HF and annealed in N2 atmosphere to obtain (TiO2 NTs‐N2) and then the nickel was deposited on the support TiO2 NTs by immersing TiO2 NTs in mesoporous sol–gel template Ni nanoparticles method for overnight and then annealed in N2 atmosphere to obtain the electrocatalyst NiO NPs/TiO2 NTs‐N2. The physicochemical characterizations of NiO NPs/TiO2 NTs‐N2 were performed by scanning electron microscopy (SEM) and X‐ray diffraction (XRD) analysis. The catalyst NiO NPs/TiO2 NTs‐N2 was electrochemically characterized in a basic solution of methanol by cyclic voltammetry (CV) measurement. XRD characterization indicates the presence of nickel oxide nanoparticles with a diameter less than 43 nm and regularly combined into TiO2 nanotubes. NiO NPs/TiO2 NTs‐N2 catalyst exhibited a remarkably high electrocatalytic activity and has high electrocatalytic stability for methanol electrocatalytic oxidation reaction. The electrochemical studies showed that NiO NPs/TiO2 NTs‐N2 in alcoholic basic solution exhibited higher catalytic activity and stronger poisoning tolerance for methanol oxidation than that in nonalcoholic basic solution. This suggests that the NiO NPs catalyst supported on TiO2 NTs‐N2 has promising potential applications in electrocatalyst reactions. Nickel oxide supported on the conductive support TiO2 NTs‐N2 is used as an electrocatalyst in alkaline fuel cells. Results showed the best improvement in the physico‐chemical properties of these catalysts in comparison with previous studies.

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Section: Electrochemical Characteristicsmentioning

confidence: 99%

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes

Jamil

Awad

Al-Maydama

et al. 2022

Applied Organom Chemis

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“…Another advantage is that these sensors can be modified, promoting better selectivity and accuracy in the analysis [20,21]. Regarding modifiers in sensors, we highlight the molecularly imprinted polymers (MIPs).…”

Section: -β-Estradiol (E2mentioning

confidence: 99%

Development of a Chemically Modified Electrode with Magnetic Molecularly Imprinted Polymer (MagMIP) for 17-β-Estradiol Determination in Water Samples

Silva

Pereira

2022

Electrochem

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The present work consisted of the development of an electrode based on carbon paste modified with magnetic molecularly imprinted polymer (CPE-MagMIP) for 17-β-estradiol (E2) detection. The incorporation of magnetic material (MagMIP) improved sensor performance, an increase of over 317%. The proposed method resulted in a linear response range from 0.5 to 14.0 μM, and the detection limit (LOD) and quantification limit (LOQ) were equal to 0.13 and 0.44 μM, respectively. Under optimized conditions, the developed sensor obtained satisfactory parameters in E2 determination in water samples, demonstrating selectivity, accuracy, and precision, making it a promising method for monitoring E2 in environmental samples.

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“…An interesting and recent approach is chemically modified electrodes (CMEs), which are mainly used for selective and sensitive electrochemical determination. They can mediate the electrode reaction through a significant reduction in over-potential, independent of pH, with a fast and stable reaction in redox response [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. In 1979, an electrochemical approach called the chemical modification of the carbon paste electrode surface was proposed [ 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

A New Electrochemical Sensor for the Detection of Ketoconazole Using Carbon Paste Electrode Modified with Sheaf-like Ce-BTC MOF Nanostructure and Ionic Liquid

2023

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An ultrasensitive and selective voltammetric sensor with an ultratrace-level detection limit is introduced for ketoconazole (KTC) determination in real samples using a modified carbon paste electrode with a sheaf-like Ce-BTC MOF nanostructure and ionic liquid. The as-synthesized nanostructure was characterized by several techniques, including energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). The electrocatalytic performance of the developed electrode was observed by cyclic voltammetry (CV), differential pulse voltammetry (DPV), linear sweep voltammetry (LSV), and chronoamperometry. The limit of detection (LOD) of the developed sensor for KTC is 0.04 μM, and the response was found to be in the dynamic concentration range of 0.1–110.0 μM in a phosphate buffer solution. The proposed electrode exhibits acceptable electrocatalytic activity for KTC oxidation with a high sensitivity of 0.1342 μA·μM−1. The ability of the fabricated sensor to monitor KTC in real aqueous samples is demonstrated using standard addition data.

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Electrochemical determination of ethanol on carbon paste electrode chemically modified with [N,N′-cis-1,2-cyclohexylene bis (salicylideneaminate)] nickel(II) Schiff base complex

Cited by 12 publications

References 28 publications

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes

Development of a Chemically Modified Electrode with Magnetic Molecularly Imprinted Polymer (MagMIP) for 17-β-Estradiol Determination in Water Samples

A New Electrochemical Sensor for the Detection of Ketoconazole Using Carbon Paste Electrode Modified with Sheaf-like Ce-BTC MOF Nanostructure and Ionic Liquid

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Electrochemical determination of ethanol on carbon paste electrode chemically modified with [N,N′-cis-1,2-cyclohexylene bis (salicylideneaminate)] nickel(II) Schiff base complex

Cited by 12 publications

References 28 publications

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO2 nanotubes

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO2 nanotubes

Development of a Chemically Modified Electrode with Magnetic Molecularly Imprinted Polymer (MagMIP) for 17-β-Estradiol Determination in Water Samples

A New Electrochemical Sensor for the Detection of Ketoconazole Using Carbon Paste Electrode Modified with Sheaf-like Ce-BTC MOF Nanostructure and Ionic Liquid

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About

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO₂ nanotubes