Co/Al layered double hydroxide coated electrode for in flow amperometric detection of sugars

Gualandi, Isacco; Scavetta, Erika; Vlamidis, Ylea; Casagrande, A.; Tonelli, Domenica

doi:10.1016/j.electacta.2015.04.172

Cited by 29 publications

(9 citation statements)

References 37 publications

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“…[1] Different kinds of guest anions, together with water molecules, occupy the interlamellar space to balance the excess positive charge of the hydroxide sheets, giving a layered hydrotalcite-like [M 2 + (1Àx) M 3 + x (OH) 2 ] [A nÀ x/n ] mH 2 O structure (Figure 1). [2][3][4][5][6] The noteworthy capacity to host and exchange different organic or inorganic anions in the interlamellar space [7] has attracted much interest in view of a number of possible applications, such as superhydrophobic surfaces, [8][9] anti-corrosion coatings, [10][11][12][13] flame retardants, [14] clay-modified electrodes for electroanalytical applications, [15][16][17] adsorbents and biosen-sors for water treatment and purification, [18][19][20][21] nanosystems for molecular and gene storage and drug delivery. [22][23][24] Moreover, the possibility of depositing well-adherent in-situ grown LDH films on metal substrates by a simple hydrothermal process [6,[25][26] could offer significant opportunities for the fabrication of functionalized 3D electrodes for advanced batteries.…”

Section: Introductionmentioning

confidence: 99%

Layered Double Hydroxides Containing an Ionic Liquid: Ionic Conductivity and Use in Composite Anion Exchange Membranes

et al. 2018

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Zinc-aluminum layered double hydroxide (LDH) containing an ionic liquid, 1-butyl-3-methylimidazolium hydrogen sulfate (BmimSO 4 ), has been synthesized by a co-precipitation method. This strategy enabled the intercalation of the ionic liquid (IL) into the interlamellar space of LDH with the aim of increasing the ionic conductivity and reducing its dependence on water content. Pure and IL-intercalated LDHs have been characterized by Fourier-Transform Infrared (FTIR) spectroscopy and X-ray diffraction. Electrochemical Impedance Spectroscopy (EIS) measurements showed that the addition of IL enhanced the ionic conductivity of LDH by a factor of 15 at low humidity and by a factor of 9 at high humidity conditions. As a possible application, LDHs were dispersed as a guest filler in a composite anion exchange membrane (AEM) based on polysulfone-DABCO. In this case, the addition of IL remarkably improved the ionic conductivity of the membrane from 1.0 · 10 À9 to 2.4 · 10 À7 S/ cm at low humidity. At high humidity, the membranes reached a conductivity of 25 mS/cm at 25 8C in OH form. Stability tests of composite AEM confirmed the positive effect of LDH nanoparticles. Figure 1. Chemical formulas of a) LDH and b) 1-Butyl-3-methylimidazolium hydrogen sulfate (BmimSO 4 ).

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Section: Introductionmentioning

confidence: 99%

Layered Double Hydroxides Containing an Ionic Liquid: Ionic Conductivity and Use in Composite Anion Exchange Membranes

et al. 2018

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“…Eluent: 0.01 M NaOH containing 0.1 M KNO 3 , flow rate: 1 mL min −1 ; E app : + 0.50 V vs. Ag/AgCl. Images reproduced from [ 59 , 60 ] with permission.…”

Section: Figurementioning

confidence: 99%

Electrochemical Deposition of Nanomaterials for Electrochemical Sensing

Tonelli¹,

Scavetta²,

Gualandi³

2019

Sensors

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146

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The most commonly used methods to electrodeposit nanomaterials on conductive supports or to obtain electrosynthesis nanomaterials are described. Au, layered double hydroxides (LDHs), metal oxides, and polymers are the classes of compounds taken into account. The electrochemical approach for the synthesis allows one to obtain nanostructures with well-defined morphologies, even without the use of a template, and of variable sizes simply by controlling the experimental synthesis conditions. In fact, parameters such as current density, applied potential (constant, pulsed or ramp) and duration of the synthesis play a key role in determining the shape and size of the resulting nanostructures. This review aims to describe the most recent applications in the field of electrochemical sensors of the considered nanomaterials and special attention is devoted to the analytical figures of merit of the devices.

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“…A simple carbon black dispersion on a SPE is effectively used for determination of a number of phenolic compounds [ 42 ]. The effectiveness of composites is coupled to the advantages of SPEs in a sensing system in which Au-NPs are anchored to carbon black microparticles [ 43 ].…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Chemical Sensors and Biosensors in Italy: A Review of the 2015 Literature

Compagnone

Francia

Natale

et al. 2017

Sensors

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The contributions of Italian researchers to sensor research in 2015 is reviewed. The analysis of the activities in one year allows one to obtain a snapshot of the Italian scenario capturing the main directions of the research activities. Furthermore, the distance of more than one year makes meaningful the bibliometric analysis of the reviewed papers. The review shows a research community distributed among different scientific disciplines, from chemistry, physics, engineering, and material science, with a strong interest in collaborative works.

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Co/Al layered double hydroxide coated electrode for in flow amperometric detection of sugars

Cited by 29 publications

References 37 publications

Layered Double Hydroxides Containing an Ionic Liquid: Ionic Conductivity and Use in Composite Anion Exchange Membranes

Layered Double Hydroxides Containing an Ionic Liquid: Ionic Conductivity and Use in Composite Anion Exchange Membranes

Electrochemical Deposition of Nanomaterials for Electrochemical Sensing

Chemical Sensors and Biosensors in Italy: A Review of the 2015 Literature

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