Effect of edge plane sites, oxygenated species and metallic impurities upon the electroactivity of carbon nanotube-modified electrodes toward hydrazine

Arribas, Alberto Sánchez; Moreno, Mónica Cárdenas; Martínez-Fernández, Marta; Bermejo, Esperanza; Zapardiel, Antonio; Chicharro, Manuel

doi:10.1016/j.snb.2013.02.083

Cited by 9 publications

(1 citation statement)

References 39 publications

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“…Cobalt and copper oxides have shown more important contribution to the observed electroactivity, and their presence as impurities in carbon nanotubes (CNTs) should be considered in the evaluation of their electrochemical response. 32 It is considered that the ferromagnetism of some fullerene polymers and graphite, such as hard carbon phase samples, is not related to fullerene at all. 33 Most of the works published previously as evidence of ferromagnetism in fullerene polymers synthesized at high pressure high temperature (HPHT) conditions can be explained by contamination with magnetic impurities.…”

Section: Metallic Elements As Impuritiesmentioning

confidence: 99%

Matermetallomics: Concept And Analytical Methodology

Li¹

2021

At.Spectrosc.

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The emerging field of matermetallomics refers to all research activities aimed at the clarification of the role and function of metallic elements in materials. This paper discusses the concept of matermetallomics and the related analytical techniques used for probing the interactions between structure-activity relationships. The main object of matermetallomics research is metallic elements in materials, and includes the significance and contributions to materials science. This paper also introduces the analytical approaches used in matermetallomics, which includes the techniques of imaging, spectroscopic, X-ray-based, ion beam, MS-based and atomic spectrometry. Recently, this technology has been successfully applied to some novel materials, such as energy materials, gas separation materials, alloy materials, catalytic materials, polymer materials and others for specific applications. 2-7 Studies have shown that the composition as genes of materials is an important link in the chain of processing, structure, properties, and performance, which is worthy of attention and discussion.

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Section: Metallic Elements As Impuritiesmentioning

confidence: 99%

Matermetallomics: Concept And Analytical Methodology

Li¹

2021

At.Spectrosc.

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Electroanalysis of Caffeic Acid in Red Wine and Investigation of Thermodynamic Parameters Using an Ag Nanoparticles Modified Poly(Thiophene) Film Glassy Carbon Electrode

2013

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A silver nanoparticle decorated poly(thiophene) modified glassy carbon electrode (GCE) was prepared for determination of caffeic acid. The Ag/PTh/GCE surface was characterized by scanning electron microscopy (SEM) and energy‐dispersive X‐ray (EDX) spectroscopy. The modified electrode has shown higher electrocatalytic activity towards the oxidation of caffeic acid. The peak current of was found linear in the concentration range from 1.00×10−8 to 4.83×10−6 M with a detection limit of 5.3×10−9 M (S/N=3). The modified electrode was used for determination of CA concentration in red wine samples. The thermodynamic constants, entropy change (ΔS), enthalpy change (ΔH) and Gibbs free energy change (ΔG) were calculated as −166.34 J/(mol K), −154.24 kJ/mol and −104.75 kJ/mol at 25 °C, respectively.

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A New Voltammetric Sensor for Hydrazine Based on Michael Addition Reaction Using 1‐Amino‐2‐naphtol‐4‐sulfonic Acid

Ojani

Rahemi

Raoof

2014

J Chinese Chemical Soc

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In this paper, voltammetric determination of hydrazine was investigated by 1-amino-2-naphtol-4-sulfonic acid (ANSA) at the surface of carbon paste electrode (CPE) using cyclic voltammetry (CV) and double potential step chronoamperometry. Results showed that in pH 7.00, hydrazine participates in Michael addition reaction with ANSA and the anodic peak potential of hydrazine shifted to 726 mV less positive than CPE in absence of ANSA, this value is unique compared with other research works. Also, the value of rate constant for the oxidation of hydrazine was calculated 8.3 × 10 4 cm 3 mol -1 s -1 and the diffusion coefficient of ANSA at the surface of CPE was determined 7.3 × 10 -7 cm 2 s -1 . A linear correlation between I p and hydrazine concentration in the ranges, from 5 × 10 -5 mol/L to 2.5 × 10 -2 mol/L with CV method was obtained and the detection limit was found as 4.3 × 10 -5 mol/L.

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Effect of edge plane sites, oxygenated species and metallic impurities upon the electroactivity of carbon nanotube-modified electrodes toward hydrazine

Cited by 9 publications

References 39 publications

Matermetallomics: Concept And Analytical Methodology

Matermetallomics: Concept And Analytical Methodology

Electroanalysis of Caffeic Acid in Red Wine and Investigation of Thermodynamic Parameters Using an Ag Nanoparticles Modified Poly(Thiophene) Film Glassy Carbon Electrode

A New Voltammetric Sensor for Hydrazine Based on Michael Addition Reaction Using 1‐Amino‐2‐naphtol‐4‐sulfonic Acid

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