The electrochemical reduction of the purines guanine and adenine at platinum electrodes in several room temperature ionic liquids

Zanoni, María Valnice Boldrin; Rogers, Emma I.; Hardacre, Christopher; Compton, Richard G.

doi:10.1016/j.aca.2009.11.026

Cited by 35 publications

(28 citation statements)

References 39 publications

(105 reference statements)

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“…As green solvents, RTILs can be used as the supporting electrolyte or the modified materials for electrode. RTILs have been proposed to be very interesting and efficient pasting binders in place of nonconductive organic binders for the preparation of carbon composite electrodes [12][13][14]. Using ionic liquid as a pasting binder in carbon paste electrode (CPE), we can construct a new generation of carbon composite electrodes with some advantages over CPEs such as high conductivity, fast electron transfer rates, and antifouling properties.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Nickel modified ionic liquid/carbon paste electrode for highly efficient electrocatalytic oxidation of methanol in alkaline medium

Ojani

Raoof

Safshekan

2012

J Solid State Electrochem

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In this study, the electrocatalytic oxidation of methanol at nickel modified ionic liquid/carbon paste electrode (Ni/ IL/CPE) in alkaline medium is presented. The ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, is incorporated into the electrode as a binder. Electrochemical impedance spectroscopy is employed to evaluate the electron transfer rate of this electrode. Ni(II) ions are incorporated into the electrode by immersion of this electrode in 1.0 M nickel sulfate solution. Cyclic voltammetry and chronoamperometry techniques are used for the electrochemical study of this modified electrode in the absence and the presence of methanol. The effect of methanol concentration on the anodic peak current shows an increase in the anodic peak current up to 1.25 M. Current density of Ni/IL/CPE for methanol oxidation in alkaline media is investigated by comparison with some of the previously reported electrodes. Results show that this electrode exhibits a high efficient electrocatalytic activity toward the oxidation of methanol with the current density of 17.6 mA cm −2 . The rate constant for chemical reaction between methanol and redox sites of electrode is calculated. This new proposed electrode is simple and efficient enough, and it can be widely used as anode in direct methanol fuel cell.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Nickel modified ionic liquid/carbon paste electrode for highly efficient electrocatalytic oxidation of methanol in alkaline medium

Ojani

Raoof

Safshekan

2012

J Solid State Electrochem

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“…Although direct DNA oxidation has been studied with different materials such as silver, 72,73 platinum, 48 copper, 74 gold 75 and mercury, 76,77 among others, the most widely used electrodes for studying the direct oxidation of nucleobases, nucleosides and nucleotides have been carbon based electrodes. Namely, these electrodes are graphite, glassy carbon, boron doped diamond, graphene, nanocarbon films and carbon nanotubes due to their unique properties in terms of structure and electric resistivity.…”

Section: Carbon Materials For the Direct Oxidation Of Dna Basesmentioning

confidence: 99%

Carbon materials for the electrooxidation of nucleobases, nucleosides and nucleotides toward cytosine methylation detection: a review

et al. 2016

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“…Some properties, such as the thermal stability and miscibility, mainly depend on the anion, while others, such as the viscosity, surface tension and density, depend on the length of the alkyl chain in the cation and/or shape or symmetry [17] . These characteristics make these reagents suitable for a broad spectrum of uses such as catalytic reactions, organic synthesis, polymer chemistry, fungicides and electrochemical applications [18][19][20][21][22] ; recently, they had been proposed as extractants in solvent extraction and ionic exchange technologies, in order to extract metals from metal-bearing wastewaters [23][24][25][26] .…”

Section: Carriers In Organic Phases and Ionic Liquidsmentioning

confidence: 99%

Supported liquid membranes technologies in metals removal from liquid effluents

Agreda¹,

García‐Díaz²,

López³

et al. 2011

REVMETAL

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The generation of liquid effluents containing organic and inorganic residues from industries present a potential hazardousness for environment and human health, being mandatory the elimination of these pollutants from the respective solutions containing them. In order to achieve this goal, several techniques are being used and among them, supported liquid membranes technologies are showing their potential for their application in the removal of metals contained in liquid effluents. Supported liquid membranes are a combination between conventional polymeric membranes and solvent extraction. Several configurations are used: flat-sheet supported liquid membranes, spiral wounds and hollow fiber modules. In order to improve their effectiveness, smart operations have been developed: non-dispersive solvent extraction, non-dispersive solvent extraction with strip phase dispersion and hollow fiber renewal liquid membrane. This paper overviewed some of these supported liquid membranes technologies and their applications to the treatment of metal-bearing liquid effluents. KeywordsSupported liquid membranes; Metals; Extractants; Ionic liquids; liquid effluents; Environment. Tecnologías de membranas líquidas soportadas en la eliminación de metales de efluentes líquidos ResumenLa generación, por parte de las industrias, de efluentes líquidos conteniendo sustancias orgánicas e inorgánicas, es un peligro potencial tanto para los humanos como para el medio ambiente, siendo necesaria la eliminación de estos elementos tóxicos de las disoluciones que los contienen. Para conseguir este fin, se están aplicando diversas técni-cas y entre ellas las tecnologías de membranas líquidas soportadas, están demostrando sus aptitudes para la eliminación de metales contenidos en efluentes líquidos. Las membranas líquidas soportadas, resultan de la unión de las membranas poliméricas y de la tecnología de extracción líquido-líquido. Este tipo de membranas se pueden utilizar en diversas configuraciones: plana, módulo en fibra hueca y módulo en espiral y para aumentar su efectividad se están desarrollando las llamadas operaciones avanzadas: extracción no dispersiva, extracción no dispersiva con dispersión de la fase de reextracción y empleo del módulo de fibra hueca, con renovación de la membrana líquida. En este trabajo se revisan estas operaciones de membranas líquidas soportadas y algunas de las aplicaciones de las mismas, en el tratamiento de efluentes líquidos conteniendo metales. Palabras claveMembranas líquidas soportadas; Metales; Agentes de extracción; Líquidos iónicos; Efluentes líquidos; Medio ambiente.

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The electrochemical reduction of the purines guanine and adenine at platinum electrodes in several room temperature ionic liquids

Cited by 35 publications

References 39 publications

RETRACTED ARTICLE: Nickel modified ionic liquid/carbon paste electrode for highly efficient electrocatalytic oxidation of methanol in alkaline medium

RETRACTED ARTICLE: Nickel modified ionic liquid/carbon paste electrode for highly efficient electrocatalytic oxidation of methanol in alkaline medium

Carbon materials for the electrooxidation of nucleobases, nucleosides and nucleotides toward cytosine methylation detection: a review

Supported liquid membranes technologies in metals removal from liquid effluents

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